Self Hosting
Hosting stuff in home lab.
Kubernetes
Kubernetes
Kubernetes
Resources
Networks
| Base range |
Subnet 1 / Usage |
Subnet 2 / Usage |
| 172.19.0.0/16 | ||
| 172.19.1.0/24 | Service ClusterIP range |
VMs
- Based on
Virtual Machine 108 (void-2023-04-13) on node 'igor'template - Connected to
SERVERVLAN
| Name |
Role |
IP |
| kube-m0 |
Master |
192.168.50.247 |
Kubernetes
Etcd
Setup
Flags generated by kuebadm init
etcd \
--advertise-client-urls=https://192.168.50.247:2379 \
--cert-file=/etc/kubernetes/pki/etcd/server.crt \
--client-cert-auth=true \
--data-dir=/var/lib/etcd \
--experimental-initial-corrupt-check=true \
--experimental-watch-progress-notify-interval=5s \
--initial-advertise-peer-urls=https://192.168.50.247:2380 \
--initial-cluster=kube-m0=https://192.168.50.247:2380 \
--key-file=/etc/kubernetes/pki/etcd/server.key \
--listen-client-urls=https://127.0.0.1:2379,https://192.168.50.247:2379 \
--listen-metrics-urls=http://127.0.0.1:2381 \
--listen-peer-urls=https://192.168.50.247:2380 \
--name=kube-m0 \
--peer-cert-file=/etc/kubernetes/pki/etcd/peer.crt \
--peer-client-cert-auth=true \
--peer-key-file=/etc/kubernetes/pki/etcd/peer.key \
--peer-trusted-ca-file=/etc/kubernetes/pki/etcd/ca.crt \
--snapshot-count=10000 \
--trusted-ca-file=/etc/kubernetes/pki/etcd/ca.crtUsage
etcdctl put /foo hello
etcdctl get /foo
# get all keys
etcdctl get / --prefixKubernetes
Services: Control
Setup
Installation with kubeadm init would set up certificates, configs and initial static kublet manifests to start control-plane using kublet configured container runtime. Here we will use certificates and configs generated by kubeadm but will set up services directly on the host using runit.
Files
Kubelet TLS certificate issuing
- bootstrap-tokens - generate shared secret (token), it is then used by kubelet to get actual certs from API server
Kubernetes API server
exec chpst -u kube:kube kube-apiserver \
--enable-bootstrap-token-auth \
--service-account-issuer https://localhost:6443 \
--service-cluster-ip-range 172.19.1.0/24 \
--etcd-servers http://127.0.0.1:2379 \
--enable-admission-plugins NamespaceLifecycle,LimitRanger,ServiceAccount,DefaultStorageClass,DefaultTolerationSeconds,Priority,ResourceQuota \
--client-ca-file /etc/kubernetes/pki/ca.crt \
--tls-cert-file /etc/kubernetes/pki/apiserver.crt \
--tls-private-key-file /etc/kubernetes/pki/apiserver.key \
--kubelet-client-certificate /etc/kubernetes/pki/apiserver-kubelet-client.crt \
--kubelet-client-key /etc/kubernetes/pki/apiserver-kubelet-client.key \
--service-account-key-file /etc/kubernetes/pki/sa.pub \
--service-account-signing-key-file /etc/kubernetes/pki/sa.key \
--requestheader-client-ca-file /etc/kubernetes/pki/front-proxy-ca.crt \
--proxy-client-cert-file /etc/kubernetes/pki/front-proxy-client.crt \
--proxy-client-key-file /etc/kubernetes/pki/front-proxy-client.keyFlags generated by kuebadm init
kube-apiserver \
--advertise-address=192.168.50.247 \
--allow-privileged=true \
--authorization-mode=Node,RBAC \
--client-ca-file=/etc/kubernetes/pki/ca.crt \
--enable-admission-plugins=NodeRestriction \
--enable-bootstrap-token-auth=true \
--etcd-cafile=/etc/kubernetes/pki/etcd/ca.crt \
--etcd-certfile=/etc/kubernetes/pki/apiserver-etcd-client.crt \
--etcd-keyfile=/etc/kubernetes/pki/apiserver-etcd-client.key \
--etcd-servers=https://127.0.0.1:2379 \
--kubelet-client-certificate=/etc/kubernetes/pki/apiserver-kubelet-client.crt \
--kubelet-client-key=/etc/kubernetes/pki/apiserver-kubelet-client.key \
--kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname \
--proxy-client-cert-file=/etc/kubernetes/pki/front-proxy-client.crt \
--proxy-client-key-file=/etc/kubernetes/pki/front-proxy-client.key \
--requestheader-allowed-names=front-proxy-client \
--requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.crt \
--requestheader-extra-headers-prefix=X-Remote-Extra- \
--requestheader-group-headers=X-Remote-Group \
--requestheader-username-headers=X-Remote-User \
--secure-port=6443 \
--service-account-issuer=https://kubernetes.default.svc.cluster.local \
--service-account-key-file=/etc/kubernetes/pki/sa.pub \
--service-account-signing-key-file=/etc/kubernetes/pki/sa.key \
--service-cluster-ip-range=10.96.0.0/12 \
--tls-cert-file=/etc/kubernetes/pki/apiserver.crt \
--tls-private-key-file=/etc/kubernetes/pki/apiserver.key| Flag |
Value |
Info |
|
|
||
|
|
NamespaceLifecycle,LimitRanger,ServiceAccount,DefaultStorageClass,DefaultTolerationSeconds,Priority,ResourceQuota |
|
--service-account-issuer |
https://localhost:6443 - URL to the API server (load balancer in multi-server setup) |
|
--client-ca-file |
Enabled client authentication using certificates signed by this CA. |
Admission plugins
Defaults
| Symbol |
Description |
| CertificateApproval |
This admission controller observes requests to approve CertificateSigningRequest resources and performs additional authorization checks to ensure the approving user has permission to approve certificate requests with the See Certificate Signing Requests for more information on the permissions required to perform different actions on CertificateSigningRequest resources. |
| CertificateSigning |
This admission controller observes updates to the See Certificate Signing Requests for more information on the permissions required to perform different actions on CertificateSigningRequest resources. |
| CertificateSubjectRestriction |
This admission controller observes creation of CertificateSigningRequest resources that have a |
| DefaultIngressClass |
This admission controller observes creation of This admission controller does not do anything when no default ingress class is configured. When more than one ingress class is marked as default, it rejects any creation of See the Ingress documentation for more about ingress classes and how to mark one as default. |
| DefaultStorageClass |
This admission controller observes creation of This admission controller does not do anything when no default storage class is configured. When more than one storage class is marked as default, it rejects any creation of See persistent volume documentation about persistent volume claims and storage classes and how to mark a storage class as default. |
| DefaultTolerationSeconds |
This admission controller sets the default forgiveness toleration for pods to tolerate the taints |
| LimitRanger |
This admission controller will observe the incoming request and ensure that it does not violate any of the constraints enumerated in the See the LimitRange API reference and the example of LimitRange for more details. |
| MutatingAdmissionWebhook | This admission controller calls any mutating webhooks which match the request. Matching webhooks are called in serial; each one may modify the object if it desires. |
| NamespaceLifecycle |
This admission controller enforces that a |
| PersistentVolumeClaimResize |
This admission controller implements additional validations for checking incoming Enabling the |
| PodSecurity |
The PodSecurity admission controller checks new Pods before they are admitted, determines if it should be admitted based on the requested security context and the restrictions on permitted Pod Security Standards for the namespace that the Pod would be in. See the Pod Security Admission documentation for more information. |
| Priority |
The priority admission controller uses the |
| ResourceQuota |
This admission controller will observe the incoming request and ensure that it does not violate any of the constraints enumerated in the See the ResourceQuota API reference and the example of Resource Quota for more details. |
| RuntimeClass |
If you define a RuntimeClass with Pod overhead configured, this admission controller checks incoming Pods. When enabled, this admission controller rejects any Pod create requests that have the overhead already set. For Pods that have a RuntimeClass configured and selected in their See also Pod Overhead for more information. |
| ServiceAccount |
This admission controller implements automation for serviceAccounts. The Kubernetes project strongly recommends enabling this admission controller. You should enable this admission controller if you intend to make any use of Kubernetes |
| StorageObjectInUseProtection |
The |
| TaintNodesByCondition |
This admission controller taints newly created Nodes as |
| ValidatingAdmissionPolicy |
This admission controller implements the CEL validation for incoming matched requests. It is enabled when both feature gate |
| ValidatingAdmissionWebhook |
This admission controller calls any validating webhooks which match the request. Matching webhooks are called in parallel; if any of them rejects the request, the request fails. This admission controller only runs in the validation phase; the webhooks it calls may not mutate the object, as opposed to the webhooks called by the |
Appendix
Usage: kube-apiserver
The Kubernetes API server validates and configures data
for the api objects which include pods, services, replicationcontrollers, and
others. The API Server services REST operations and provides the frontend to the
cluster's shared state through which all other components interact.
Usage:
kube-apiserver [flags]
Generic flags:
--advertise-address ip
The IP address on which to advertise the apiserver to members of the cluster. This
address must be reachable by the rest of the cluster. If blank, the --bind-address will
be used. If --bind-address is unspecified, the host's default interface will be used.
--cloud-provider-gce-l7lb-src-cidrs cidrs
CIDRs opened in GCE firewall for L7 LB traffic proxy & health checks (default
130.211.0.0/22,35.191.0.0/16)
--cors-allowed-origins strings
List of allowed origins for CORS, comma separated. An allowed origin can be a regular
expression to support subdomain matching. If this list is empty CORS will not be enabled.
--default-not-ready-toleration-seconds int
Indicates the tolerationSeconds of the toleration for notReady:NoExecute that is added
by default to every pod that does not already have such a toleration. (default 300)
--default-unreachable-toleration-seconds int
Indicates the tolerationSeconds of the toleration for unreachable:NoExecute that is
added by default to every pod that does not already have such a toleration. (default 300)
--enable-priority-and-fairness
If true and the APIPriorityAndFairness feature gate is enabled, replace the
max-in-flight handler with an enhanced one that queues and dispatches with priority and
fairness (default true)
--external-hostname string
The hostname to use when generating externalized URLs for this master (e.g. Swagger API
Docs or OpenID Discovery).
--feature-gates mapStringBool
A set of key=value pairs that describe feature gates for alpha/experimental features.
Options are:
APIListChunking=true|false (BETA - default=true)
APIPriorityAndFairness=true|false (BETA - default=true)
APIResponseCompression=true|false (BETA - default=true)
APISelfSubjectReview=true|false (ALPHA - default=false)
APIServerIdentity=true|false (BETA - default=true)
APIServerTracing=true|false (ALPHA - default=false)
AggregatedDiscoveryEndpoint=true|false (ALPHA - default=false)
AllAlpha=true|false (ALPHA - default=false)
AllBeta=true|false (BETA - default=false)
AnyVolumeDataSource=true|false (BETA - default=true)
AppArmor=true|false (BETA - default=true)
CPUManagerPolicyAlphaOptions=true|false (ALPHA - default=false)
CPUManagerPolicyBetaOptions=true|false (BETA - default=true)
CPUManagerPolicyOptions=true|false (BETA - default=true)
CSIMigrationPortworx=true|false (BETA - default=false)
CSIMigrationRBD=true|false (ALPHA - default=false)
CSINodeExpandSecret=true|false (ALPHA - default=false)
CSIVolumeHealth=true|false (ALPHA - default=false)
ComponentSLIs=true|false (ALPHA - default=false)
ContainerCheckpoint=true|false (ALPHA - default=false)
ContextualLogging=true|false (ALPHA - default=false)
CronJobTimeZone=true|false (BETA - default=true)
CrossNamespaceVolumeDataSource=true|false (ALPHA - default=false)
CustomCPUCFSQuotaPeriod=true|false (ALPHA - default=false)
CustomResourceValidationExpressions=true|false (BETA - default=true)
DisableCloudProviders=true|false (ALPHA - default=false)
DisableKubeletCloudCredentialProviders=true|false (ALPHA - default=false)
DownwardAPIHugePages=true|false (BETA - default=true)
DynamicResourceAllocation=true|false (ALPHA - default=false)
EventedPLEG=true|false (ALPHA - default=false)
ExpandedDNSConfig=true|false (BETA - default=true)
ExperimentalHostUserNamespaceDefaulting=true|false (BETA - default=false)
GRPCContainerProbe=true|false (BETA - default=true)
GracefulNodeShutdown=true|false (BETA - default=true)
GracefulNodeShutdownBasedOnPodPriority=true|false (BETA - default=true)
HPAContainerMetrics=true|false (ALPHA - default=false)
HPAScaleToZero=true|false (ALPHA - default=false)
HonorPVReclaimPolicy=true|false (ALPHA - default=false)
IPTablesOwnershipCleanup=true|false (ALPHA - default=false)
InTreePluginAWSUnregister=true|false (ALPHA - default=false)
InTreePluginAzureDiskUnregister=true|false (ALPHA - default=false)
InTreePluginAzureFileUnregister=true|false (ALPHA - default=false)
InTreePluginGCEUnregister=true|false (ALPHA - default=false)
InTreePluginOpenStackUnregister=true|false (ALPHA - default=false)
InTreePluginPortworxUnregister=true|false (ALPHA - default=false)
InTreePluginRBDUnregister=true|false (ALPHA - default=false)
InTreePluginvSphereUnregister=true|false (ALPHA - default=false)
JobMutableNodeSchedulingDirectives=true|false (BETA - default=true)
JobPodFailurePolicy=true|false (BETA - default=true)
JobReadyPods=true|false (BETA - default=true)
KMSv2=true|false (ALPHA - default=false)
KubeletInUserNamespace=true|false (ALPHA - default=false)
KubeletPodResources=true|false (BETA - default=true)
KubeletPodResourcesGetAllocatable=true|false (BETA - default=true)
KubeletTracing=true|false (ALPHA - default=false)
LegacyServiceAccountTokenTracking=true|false (ALPHA - default=false)
LocalStorageCapacityIsolationFSQuotaMonitoring=true|false (ALPHA - default=false)
LogarithmicScaleDown=true|false (BETA - default=true)
LoggingAlphaOptions=true|false (ALPHA - default=false)
LoggingBetaOptions=true|false (BETA - default=true)
MatchLabelKeysInPodTopologySpread=true|false (ALPHA - default=false)
MaxUnavailableStatefulSet=true|false (ALPHA - default=false)
MemoryManager=true|false (BETA - default=true)
MemoryQoS=true|false (ALPHA - default=false)
MinDomainsInPodTopologySpread=true|false (BETA - default=false)
MinimizeIPTablesRestore=true|false (ALPHA - default=false)
MultiCIDRRangeAllocator=true|false (ALPHA - default=false)
NetworkPolicyStatus=true|false (ALPHA - default=false)
NodeInclusionPolicyInPodTopologySpread=true|false (BETA - default=true)
NodeOutOfServiceVolumeDetach=true|false (BETA - default=true)
NodeSwap=true|false (ALPHA - default=false)
OpenAPIEnums=true|false (BETA - default=true)
OpenAPIV3=true|false (BETA - default=true)
PDBUnhealthyPodEvictionPolicy=true|false (ALPHA - default=false)
PodAndContainerStatsFromCRI=true|false (ALPHA - default=false)
PodDeletionCost=true|false (BETA - default=true)
PodDisruptionConditions=true|false (BETA - default=true)
PodHasNetworkCondition=true|false (ALPHA - default=false)
PodSchedulingReadiness=true|false (ALPHA - default=false)
ProbeTerminationGracePeriod=true|false (BETA - default=true)
ProcMountType=true|false (ALPHA - default=false)
ProxyTerminatingEndpoints=true|false (BETA - default=true)
QOSReserved=true|false (ALPHA - default=false)
ReadWriteOncePod=true|false (ALPHA - default=false)
RecoverVolumeExpansionFailure=true|false (ALPHA - default=false)
RemainingItemCount=true|false (BETA - default=true)
RetroactiveDefaultStorageClass=true|false (BETA - default=true)
RotateKubeletServerCertificate=true|false (BETA - default=true)
SELinuxMountReadWriteOncePod=true|false (ALPHA - default=false)
SeccompDefault=true|false (BETA - default=true)
ServerSideFieldValidation=true|false (BETA - default=true)
SizeMemoryBackedVolumes=true|false (BETA - default=true)
StatefulSetAutoDeletePVC=true|false (ALPHA - default=false)
StatefulSetStartOrdinal=true|false (ALPHA - default=false)
StorageVersionAPI=true|false (ALPHA - default=false)
StorageVersionHash=true|false (BETA - default=true)
TopologyAwareHints=true|false (BETA - default=true)
TopologyManager=true|false (BETA - default=true)
TopologyManagerPolicyAlphaOptions=true|false (ALPHA - default=false)
TopologyManagerPolicyBetaOptions=true|false (BETA - default=false)
TopologyManagerPolicyOptions=true|false (ALPHA - default=false)
UserNamespacesStatelessPodsSupport=true|false (ALPHA - default=false)
ValidatingAdmissionPolicy=true|false (ALPHA - default=false)
VolumeCapacityPriority=true|false (ALPHA - default=false)
WinDSR=true|false (ALPHA - default=false)
WinOverlay=true|false (BETA - default=true)
WindowsHostNetwork=true|false (ALPHA - default=true)
--goaway-chance float
To prevent HTTP/2 clients from getting stuck on a single apiserver, randomly close a
connection (GOAWAY). The client's other in-flight requests won't be affected, and the
client will reconnect, likely landing on a different apiserver after going through the
load balancer again. This argument sets the fraction of requests that will be sent a
GOAWAY. Clusters with single apiservers, or which don't use a load balancer, should NOT
enable this. Min is 0 (off), Max is .02 (1/50 requests); .001 (1/1000) is a recommended
starting point.
--livez-grace-period duration
This option represents the maximum amount of time it should take for apiserver to
complete its startup sequence and become live. From apiserver's start time to when this
amount of time has elapsed, /livez will assume that unfinished post-start hooks will
complete successfully and therefore return true.
--max-mutating-requests-inflight int
This and --max-requests-inflight are summed to determine the server's total concurrency
limit (which must be positive) if --enable-priority-and-fairness is true. Otherwise,
this flag limits the maximum number of mutating requests in flight, or a zero value
disables the limit completely. (default 200)
--max-requests-inflight int
This and --max-mutating-requests-inflight are summed to determine the server's total
concurrency limit (which must be positive) if --enable-priority-and-fairness is true.
Otherwise, this flag limits the maximum number of non-mutating requests in flight, or a
zero value disables the limit completely. (default 400)
--min-request-timeout int
An optional field indicating the minimum number of seconds a handler must keep a request
open before timing it out. Currently only honored by the watch request handler, which
picks a randomized value above this number as the connection timeout, to spread out
load. (default 1800)
--request-timeout duration
An optional field indicating the duration a handler must keep a request open before
timing it out. This is the default request timeout for requests but may be overridden by
flags such as --min-request-timeout for specific types of requests. (default 1m0s)
--shutdown-delay-duration duration
Time to delay the termination. During that time the server keeps serving requests
normally. The endpoints /healthz and /livez will return success, but /readyz immediately
returns failure. Graceful termination starts after this delay has elapsed. This can be
used to allow load balancer to stop sending traffic to this server.
--shutdown-send-retry-after
If true the HTTP Server will continue listening until all non long running request(s) in
flight have been drained, during this window all incoming requests will be rejected with
a status code 429 and a 'Retry-After' response header, in addition 'Connection: close'
response header is set in order to tear down the TCP connection when idle.
--strict-transport-security-directives strings
List of directives for HSTS, comma separated. If this list is empty, then HSTS
directives will not be added. Example: 'max-age=31536000,includeSubDomains,preload'
Etcd flags:
--delete-collection-workers int
Number of workers spawned for DeleteCollection call. These are used to speed up
namespace cleanup. (default 1)
--enable-garbage-collector
Enables the generic garbage collector. MUST be synced with the corresponding flag of the
kube-controller-manager. (default true)
--encryption-provider-config string
The file containing configuration for encryption providers to be used for storing
secrets in etcd
--encryption-provider-config-automatic-reload
Determines if the file set by --encryption-provider-config should be automatically
reloaded if the disk contents change. Setting this to true disables the ability to
uniquely identify distinct KMS plugins via the API server healthz endpoints.
--etcd-cafile string
SSL Certificate Authority file used to secure etcd communication.
--etcd-certfile string
SSL certification file used to secure etcd communication.
--etcd-compaction-interval duration
The interval of compaction requests. If 0, the compaction request from apiserver is
disabled. (default 5m0s)
--etcd-count-metric-poll-period duration
Frequency of polling etcd for number of resources per type. 0 disables the metric
collection. (default 1m0s)
--etcd-db-metric-poll-interval duration
The interval of requests to poll etcd and update metric. 0 disables the metric
collection (default 30s)
--etcd-healthcheck-timeout duration
The timeout to use when checking etcd health. (default 2s)
--etcd-keyfile string
SSL key file used to secure etcd communication.
--etcd-prefix string
The prefix to prepend to all resource paths in etcd. (default "/registry")
--etcd-readycheck-timeout duration
The timeout to use when checking etcd readiness (default 2s)
--etcd-servers strings
List of etcd servers to connect with (scheme://ip:port), comma separated.
--etcd-servers-overrides strings
Per-resource etcd servers overrides, comma separated. The individual override format:
group/resource#servers, where servers are URLs, semicolon separated. Note that this
applies only to resources compiled into this server binary.
--lease-reuse-duration-seconds int
The time in seconds that each lease is reused. A lower value could avoid large number of
objects reusing the same lease. Notice that a too small value may cause performance
problems at storage layer. (default 60)
--storage-backend string
The storage backend for persistence. Options: 'etcd3' (default).
--storage-media-type string
The media type to use to store objects in storage. Some resources or storage backends
may only support a specific media type and will ignore this setting. Supported media
types: [application/json, application/yaml, application/vnd.kubernetes.protobuf]
(default "application/vnd.kubernetes.protobuf")
--watch-cache
Enable watch caching in the apiserver (default true)
--watch-cache-sizes strings
Watch cache size settings for some resources (pods, nodes, etc.), comma separated. The
individual setting format: resource[.group]#size, where resource is lowercase plural (no
version), group is omitted for resources of apiVersion v1 (the legacy core API) and
included for others, and size is a number. This option is only meaningful for resources
built into the apiserver, not ones defined by CRDs or aggregated from external servers,
and is only consulted if the watch-cache is enabled. The only meaningful size setting to
supply here is zero, which means to disable watch caching for the associated resource;
all non-zero values are equivalent and mean to not disable watch caching for that resource
Secure serving flags:
--bind-address ip
The IP address on which to listen for the --secure-port port. The associated
interface(s) must be reachable by the rest of the cluster, and by CLI/web clients. If
blank or an unspecified address (0.0.0.0 or ::), all interfaces will be used. (default
0.0.0.0)
--cert-dir string
The directory where the TLS certs are located. If --tls-cert-file and
--tls-private-key-file are provided, this flag will be ignored. (default
"/var/run/kubernetes")
--http2-max-streams-per-connection int
The limit that the server gives to clients for the maximum number of streams in an
HTTP/2 connection. Zero means to use golang's default.
--permit-address-sharing
If true, SO_REUSEADDR will be used when binding the port. This allows binding to
wildcard IPs like 0.0.0.0 and specific IPs in parallel, and it avoids waiting for the
kernel to release sockets in TIME_WAIT state. [default=false]
--permit-port-sharing
If true, SO_REUSEPORT will be used when binding the port, which allows more than one
instance to bind on the same address and port. [default=false]
--secure-port int
The port on which to serve HTTPS with authentication and authorization. It cannot be
switched off with 0. (default 6443)
--tls-cert-file string
File containing the default x509 Certificate for HTTPS. (CA cert, if any, concatenated
after server cert). If HTTPS serving is enabled, and --tls-cert-file and
--tls-private-key-file are not provided, a self-signed certificate and key are generated
for the public address and saved to the directory specified by --cert-dir.
--tls-cipher-suites strings
Comma-separated list of cipher suites for the server. If omitted, the default Go cipher
suites will be used.
Preferred values: TLS_AES_128_GCM_SHA256, TLS_AES_256_GCM_SHA384,
TLS_CHACHA20_POLY1305_SHA256, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA,
TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_256_CBC_SHA,
TLS_RSA_WITH_AES_256_GCM_SHA384.
Insecure values: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_RC4_128_SHA,
TLS_RSA_WITH_3DES_EDE_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_RC4_128_SHA.
--tls-min-version string
Minimum TLS version supported. Possible values: VersionTLS10, VersionTLS11,
VersionTLS12, VersionTLS13
--tls-private-key-file string
File containing the default x509 private key matching --tls-cert-file.
--tls-sni-cert-key namedCertKey
A pair of x509 certificate and private key file paths, optionally suffixed with a list
of domain patterns which are fully qualified domain names, possibly with prefixed
wildcard segments. The domain patterns also allow IP addresses, but IPs should only be
used if the apiserver has visibility to the IP address requested by a client. If no
domain patterns are provided, the names of the certificate are extracted. Non-wildcard
matches trump over wildcard matches, explicit domain patterns trump over extracted
names. For multiple key/certificate pairs, use the --tls-sni-cert-key multiple times.
Examples: "example.crt,example.key" or "foo.crt,foo.key:*.foo.com,foo.com". (default [])
Auditing flags:
--audit-log-batch-buffer-size int
The size of the buffer to store events before batching and writing. Only used in batch
mode. (default 10000)
--audit-log-batch-max-size int
The maximum size of a batch. Only used in batch mode. (default 1)
--audit-log-batch-max-wait duration
The amount of time to wait before force writing the batch that hadn't reached the max
size. Only used in batch mode.
--audit-log-batch-throttle-burst int
Maximum number of requests sent at the same moment if ThrottleQPS was not utilized
before. Only used in batch mode.
--audit-log-batch-throttle-enable
Whether batching throttling is enabled. Only used in batch mode.
--audit-log-batch-throttle-qps float32
Maximum average number of batches per second. Only used in batch mode.
--audit-log-compress
If set, the rotated log files will be compressed using gzip.
--audit-log-format string
Format of saved audits. "legacy" indicates 1-line text format for each event. "json"
indicates structured json format. Known formats are legacy,json. (default "json")
--audit-log-maxage int
The maximum number of days to retain old audit log files based on the timestamp encoded
in their filename.
--audit-log-maxbackup int
The maximum number of old audit log files to retain. Setting a value of 0 will mean
there's no restriction on the number of files.
--audit-log-maxsize int
The maximum size in megabytes of the audit log file before it gets rotated.
--audit-log-mode string
Strategy for sending audit events. Blocking indicates sending events should block server
responses. Batch causes the backend to buffer and write events asynchronously. Known
modes are batch,blocking,blocking-strict. (default "blocking")
--audit-log-path string
If set, all requests coming to the apiserver will be logged to this file. '-' means
standard out.
--audit-log-truncate-enabled
Whether event and batch truncating is enabled.
--audit-log-truncate-max-batch-size int
Maximum size of the batch sent to the underlying backend. Actual serialized size can be
several hundreds of bytes greater. If a batch exceeds this limit, it is split into
several batches of smaller size. (default 10485760)
--audit-log-truncate-max-event-size int
Maximum size of the audit event sent to the underlying backend. If the size of an event
is greater than this number, first request and response are removed, and if this doesn't
reduce the size enough, event is discarded. (default 102400)
--audit-log-version string
API group and version used for serializing audit events written to log. (default
"audit.k8s.io/v1")
--audit-policy-file string
Path to the file that defines the audit policy configuration.
--audit-webhook-batch-buffer-size int
The size of the buffer to store events before batching and writing. Only used in batch
mode. (default 10000)
--audit-webhook-batch-max-size int
The maximum size of a batch. Only used in batch mode. (default 400)
--audit-webhook-batch-max-wait duration
The amount of time to wait before force writing the batch that hadn't reached the max
size. Only used in batch mode. (default 30s)
--audit-webhook-batch-throttle-burst int
Maximum number of requests sent at the same moment if ThrottleQPS was not utilized
before. Only used in batch mode. (default 15)
--audit-webhook-batch-throttle-enable
Whether batching throttling is enabled. Only used in batch mode. (default true)
--audit-webhook-batch-throttle-qps float32
Maximum average number of batches per second. Only used in batch mode. (default 10)
--audit-webhook-config-file string
Path to a kubeconfig formatted file that defines the audit webhook configuration.
--audit-webhook-initial-backoff duration
The amount of time to wait before retrying the first failed request. (default 10s)
--audit-webhook-mode string
Strategy for sending audit events. Blocking indicates sending events should block server
responses. Batch causes the backend to buffer and write events asynchronously. Known
modes are batch,blocking,blocking-strict. (default "batch")
--audit-webhook-truncate-enabled
Whether event and batch truncating is enabled.
--audit-webhook-truncate-max-batch-size int
Maximum size of the batch sent to the underlying backend. Actual serialized size can be
several hundreds of bytes greater. If a batch exceeds this limit, it is split into
several batches of smaller size. (default 10485760)
--audit-webhook-truncate-max-event-size int
Maximum size of the audit event sent to the underlying backend. If the size of an event
is greater than this number, first request and response are removed, and if this doesn't
reduce the size enough, event is discarded. (default 102400)
--audit-webhook-version string
API group and version used for serializing audit events written to webhook. (default
"audit.k8s.io/v1")
Features flags:
--contention-profiling
Enable lock contention profiling, if profiling is enabled
--profiling
Enable profiling via web interface host:port/debug/pprof/ (default true)
Authentication flags:
--anonymous-auth
Enables anonymous requests to the secure port of the API server. Requests that are not
rejected by another authentication method are treated as anonymous requests. Anonymous
requests have a username of system:anonymous, and a group name of
system:unauthenticated. (default true)
--api-audiences strings
Identifiers of the API. The service account token authenticator will validate that
tokens used against the API are bound to at least one of these audiences. If the
--service-account-issuer flag is configured and this flag is not, this field defaults to
a single element list containing the issuer URL.
--authentication-token-webhook-cache-ttl duration
The duration to cache responses from the webhook token authenticator. (default 2m0s)
--authentication-token-webhook-config-file string
File with webhook configuration for token authentication in kubeconfig format. The API
server will query the remote service to determine authentication for bearer tokens.
--authentication-token-webhook-version string
The API version of the authentication.k8s.io TokenReview to send to and expect from the
webhook. (default "v1beta1")
--client-ca-file string
If set, any request presenting a client certificate signed by one of the authorities in
the client-ca-file is authenticated with an identity corresponding to the CommonName of
the client certificate.
--enable-bootstrap-token-auth
Enable to allow secrets of type 'bootstrap.kubernetes.io/token' in the 'kube-system'
namespace to be used for TLS bootstrapping authentication.
--oidc-ca-file string
If set, the OpenID server's certificate will be verified by one of the authorities in
the oidc-ca-file, otherwise the host's root CA set will be used.
--oidc-client-id string
The client ID for the OpenID Connect client, must be set if oidc-issuer-url is set.
--oidc-groups-claim string
If provided, the name of a custom OpenID Connect claim for specifying user groups. The
claim value is expected to be a string or array of strings. This flag is experimental,
please see the authentication documentation for further details.
--oidc-groups-prefix string
If provided, all groups will be prefixed with this value to prevent conflicts with other
authentication strategies.
--oidc-issuer-url string
The URL of the OpenID issuer, only HTTPS scheme will be accepted. If set, it will be
used to verify the OIDC JSON Web Token (JWT).
--oidc-required-claim mapStringString
A key=value pair that describes a required claim in the ID Token. If set, the claim is
verified to be present in the ID Token with a matching value. Repeat this flag to
specify multiple claims.
--oidc-signing-algs strings
Comma-separated list of allowed JOSE asymmetric signing algorithms. JWTs with a
supported 'alg' header values are: RS256, RS384, RS512, ES256, ES384, ES512, PS256,
PS384, PS512. Values are defined by RFC 7518
https://tools.ietf.org/html/rfc7518#section-3.1. (default [RS256])
--oidc-username-claim string
The OpenID claim to use as the user name. Note that claims other than the default
('sub') is not guaranteed to be unique and immutable. This flag is experimental, please
see the authentication documentation for further details. (default "sub")
--oidc-username-prefix string
If provided, all usernames will be prefixed with this value. If not provided, username
claims other than 'email' are prefixed by the issuer URL to avoid clashes. To skip any
prefixing, provide the value '-'.
--requestheader-allowed-names strings
List of client certificate common names to allow to provide usernames in headers
specified by --requestheader-username-headers. If empty, any client certificate
validated by the authorities in --requestheader-client-ca-file is allowed.
--requestheader-client-ca-file string
Root certificate bundle to use to verify client certificates on incoming requests before
trusting usernames in headers specified by --requestheader-username-headers. WARNING:
generally do not depend on authorization being already done for incoming requests.
--requestheader-extra-headers-prefix strings
List of request header prefixes to inspect. X-Remote-Extra- is suggested.
--requestheader-group-headers strings
List of request headers to inspect for groups. X-Remote-Group is suggested.
--requestheader-username-headers strings
List of request headers to inspect for usernames. X-Remote-User is common.
--service-account-extend-token-expiration
Turns on projected service account expiration extension during token generation, which
helps safe transition from legacy token to bound service account token feature. If this
flag is enabled, admission injected tokens would be extended up to 1 year to prevent
unexpected failure during transition, ignoring value of
service-account-max-token-expiration. (default true)
--service-account-issuer stringArray
Identifier of the service account token issuer. The issuer will assert this identifier
in "iss" claim of issued tokens. This value is a string or URI. If this option is not a
valid URI per the OpenID Discovery 1.0 spec, the ServiceAccountIssuerDiscovery feature
will remain disabled, even if the feature gate is set to true. It is highly recommended
that this value comply with the OpenID spec:
https://openid.net/specs/openid-connect-discovery-1_0.html. In practice, this means that
service-account-issuer must be an https URL. It is also highly recommended that this URL
be capable of serving OpenID discovery documents at
{service-account-issuer}/.well-known/openid-configuration. When this flag is specified
multiple times, the first is used to generate tokens and all are used to determine which
issuers are accepted.
--service-account-jwks-uri string
Overrides the URI for the JSON Web Key Set in the discovery doc served at
/.well-known/openid-configuration. This flag is useful if the discovery docand key set
are served to relying parties from a URL other than the API server's external (as
auto-detected or overridden with external-hostname).
--service-account-key-file stringArray
File containing PEM-encoded x509 RSA or ECDSA private or public keys, used to verify
ServiceAccount tokens. The specified file can contain multiple keys, and the flag can be
specified multiple times with different files. If unspecified, --tls-private-key-file is
used. Must be specified when --service-account-signing-key-file is provided
--service-account-lookup
If true, validate ServiceAccount tokens exist in etcd as part of authentication.
(default true)
--service-account-max-token-expiration duration
The maximum validity duration of a token created by the service account token issuer. If
an otherwise valid TokenRequest with a validity duration larger than this value is
requested, a token will be issued with a validity duration of this value.
--token-auth-file string
If set, the file that will be used to secure the secure port of the API server via token
authentication.
Authorization flags:
--authorization-mode strings
Ordered list of plug-ins to do authorization on secure port. Comma-delimited list of:
AlwaysAllow,AlwaysDeny,ABAC,Webhook,RBAC,Node. (default [AlwaysAllow])
--authorization-policy-file string
File with authorization policy in json line by line format, used with
--authorization-mode=ABAC, on the secure port.
--authorization-webhook-cache-authorized-ttl duration
The duration to cache 'authorized' responses from the webhook authorizer. (default 5m0s)
--authorization-webhook-cache-unauthorized-ttl duration
The duration to cache 'unauthorized' responses from the webhook authorizer. (default 30s)
--authorization-webhook-config-file string
File with webhook configuration in kubeconfig format, used with
--authorization-mode=Webhook. The API server will query the remote service to determine
access on the API server's secure port.
--authorization-webhook-version string
The API version of the authorization.k8s.io SubjectAccessReview to send to and expect
from the webhook. (default "v1beta1")
Cloud provider flags:
--cloud-config string
The path to the cloud provider configuration file. Empty string for no configuration file.
--cloud-provider string
The provider for cloud services. Empty string for no provider.
API enablement flags:
--runtime-config mapStringString
A set of key=value pairs that enable or disable built-in APIs. Supported options are:
v1=true|false for the core API group
<group>/<version>=true|false for a specific API group and version (e.g. apps/v1=true)
api/all=true|false controls all API versions
api/ga=true|false controls all API versions of the form v[0-9]+
api/beta=true|false controls all API versions of the form v[0-9]+beta[0-9]+
api/alpha=true|false controls all API versions of the form v[0-9]+alpha[0-9]+
api/legacy is deprecated, and will be removed in a future version
Egress selector flags:
--egress-selector-config-file string
File with apiserver egress selector configuration.
Admission flags:
--admission-control strings
Admission is divided into two phases. In the first phase, only mutating admission
plugins run. In the second phase, only validating admission plugins run. The names in
the below list may represent a validating plugin, a mutating plugin, or both. The order
of plugins in which they are passed to this flag does not matter. Comma-delimited list
of: AlwaysAdmit, AlwaysDeny, AlwaysPullImages, CertificateApproval, CertificateSigning,
CertificateSubjectRestriction, DefaultIngressClass, DefaultStorageClass,
DefaultTolerationSeconds, DenyServiceExternalIPs, EventRateLimit,
ExtendedResourceToleration, ImagePolicyWebhook, LimitPodHardAntiAffinityTopology,
LimitRanger, MutatingAdmissionWebhook, NamespaceAutoProvision, NamespaceExists,
NamespaceLifecycle, NodeRestriction, OwnerReferencesPermissionEnforcement,
PersistentVolumeClaimResize, PersistentVolumeLabel, PodNodeSelector, PodSecurity,
PodTolerationRestriction, Priority, ResourceQuota, RuntimeClass, SecurityContextDeny,
ServiceAccount, StorageObjectInUseProtection, TaintNodesByCondition,
ValidatingAdmissionPolicy, ValidatingAdmissionWebhook. (DEPRECATED: Use
--enable-admission-plugins or --disable-admission-plugins instead. Will be removed in a
future version.)
--admission-control-config-file string
File with admission control configuration.
--disable-admission-plugins strings
admission plugins that should be disabled although they are in the default enabled
plugins list (NamespaceLifecycle, LimitRanger, ServiceAccount, TaintNodesByCondition,
PodSecurity, Priority, DefaultTolerationSeconds, DefaultStorageClass,
StorageObjectInUseProtection, PersistentVolumeClaimResize, RuntimeClass,
CertificateApproval, CertificateSigning, CertificateSubjectRestriction,
DefaultIngressClass, MutatingAdmissionWebhook, ValidatingAdmissionPolicy,
ValidatingAdmissionWebhook, ResourceQuota). Comma-delimited list of admission plugins:
AlwaysAdmit, AlwaysDeny, AlwaysPullImages, CertificateApproval, CertificateSigning,
CertificateSubjectRestriction, DefaultIngressClass, DefaultStorageClass,
DefaultTolerationSeconds, DenyServiceExternalIPs, EventRateLimit,
ExtendedResourceToleration, ImagePolicyWebhook, LimitPodHardAntiAffinityTopology,
LimitRanger, MutatingAdmissionWebhook, NamespaceAutoProvision, NamespaceExists,
NamespaceLifecycle, NodeRestriction, OwnerReferencesPermissionEnforcement,
PersistentVolumeClaimResize, PersistentVolumeLabel, PodNodeSelector, PodSecurity,
PodTolerationRestriction, Priority, ResourceQuota, RuntimeClass, SecurityContextDeny,
ServiceAccount, StorageObjectInUseProtection, TaintNodesByCondition,
ValidatingAdmissionPolicy, ValidatingAdmissionWebhook. The order of plugins in this flag
does not matter.
--enable-admission-plugins strings
admission plugins that should be enabled in addition to default enabled ones
(NamespaceLifecycle, LimitRanger, ServiceAccount, TaintNodesByCondition, PodSecurity,
Priority, DefaultTolerationSeconds, DefaultStorageClass, StorageObjectInUseProtection,
PersistentVolumeClaimResize, RuntimeClass, CertificateApproval, CertificateSigning,
CertificateSubjectRestriction, DefaultIngressClass, MutatingAdmissionWebhook,
ValidatingAdmissionPolicy, ValidatingAdmissionWebhook, ResourceQuota). Comma-delimited
list of admission plugins: AlwaysAdmit, AlwaysDeny, AlwaysPullImages,
CertificateApproval, CertificateSigning, CertificateSubjectRestriction,
DefaultIngressClass, DefaultStorageClass, DefaultTolerationSeconds,
DenyServiceExternalIPs, EventRateLimit, ExtendedResourceToleration, ImagePolicyWebhook,
LimitPodHardAntiAffinityTopology, LimitRanger, MutatingAdmissionWebhook,
NamespaceAutoProvision, NamespaceExists, NamespaceLifecycle, NodeRestriction,
OwnerReferencesPermissionEnforcement, PersistentVolumeClaimResize,
PersistentVolumeLabel, PodNodeSelector, PodSecurity, PodTolerationRestriction, Priority,
ResourceQuota, RuntimeClass, SecurityContextDeny, ServiceAccount,
StorageObjectInUseProtection, TaintNodesByCondition, ValidatingAdmissionPolicy,
ValidatingAdmissionWebhook. The order of plugins in this flag does not matter.
Metrics flags:
--allow-metric-labels stringToString
The map from metric-label to value allow-list of this label. The key's format is
<MetricName>,<LabelName>. The value's format is <allowed_value>,<allowed_value>...e.g.
metric1,label1='v1,v2,v3', metric1,label2='v1,v2,v3' metric2,label1='v1,v2,v3'. (default [])
--disabled-metrics strings
This flag provides an escape hatch for misbehaving metrics. You must provide the fully
qualified metric name in order to disable it. Disclaimer: disabling metrics is higher in
precedence than showing hidden metrics.
--show-hidden-metrics-for-version string
The previous version for which you want to show hidden metrics. Only the previous minor
version is meaningful, other values will not be allowed. The format is <major>.<minor>,
e.g.: '1.16'. The purpose of this format is make sure you have the opportunity to notice
if the next release hides additional metrics, rather than being surprised when they are
permanently removed in the release after that.
Logs flags:
--log-flush-frequency duration
Maximum number of seconds between log flushes (default 5s)
--log-json-info-buffer-size quantity
[Alpha] In JSON format with split output streams, the info messages can be buffered for
a while to increase performance. The default value of zero bytes disables buffering. The
size can be specified as number of bytes (512), multiples of 1000 (1K), multiples of
1024 (2Ki), or powers of those (3M, 4G, 5Mi, 6Gi). Enable the LoggingAlphaOptions
feature gate to use this.
--log-json-split-stream
[Alpha] In JSON format, write error messages to stderr and info messages to stdout. The
default is to write a single stream to stdout. Enable the LoggingAlphaOptions feature
gate to use this.
--logging-format string
Sets the log format. Permitted formats: "json" (gated by LoggingBetaOptions), "text".
(default "text")
-v, --v Level
number for the log level verbosity
--vmodule pattern=N,...
comma-separated list of pattern=N settings for file-filtered logging (only works for
text log format)
Traces flags:
--tracing-config-file string
File with apiserver tracing configuration.
Misc flags:
--aggregator-reject-forwarding-redirect
Aggregator reject forwarding redirect response back to client. (default true)
--allow-privileged
If true, allow privileged containers. [default=false]
--enable-aggregator-routing
Turns on aggregator routing requests to endpoints IP rather than cluster IP.
--endpoint-reconciler-type string
Use an endpoint reconciler (master-count, lease, none) master-count is deprecated, and
will be removed in a future version. (default "lease")
--event-ttl duration
Amount of time to retain events. (default 1h0m0s)
--kubelet-certificate-authority string
Path to a cert file for the certificate authority.
--kubelet-client-certificate string
Path to a client cert file for TLS.
--kubelet-client-key string
Path to a client key file for TLS.
--kubelet-preferred-address-types strings
List of the preferred NodeAddressTypes to use for kubelet connections. (default
[Hostname,InternalDNS,InternalIP,ExternalDNS,ExternalIP])
--kubelet-timeout duration
Timeout for kubelet operations. (default 5s)
--kubernetes-service-node-port int
If non-zero, the Kubernetes master service (which apiserver creates/maintains) will be
of type NodePort, using this as the value of the port. If zero, the Kubernetes master
service will be of type ClusterIP.
--max-connection-bytes-per-sec int
If non-zero, throttle each user connection to this number of bytes/sec. Currently only
applies to long-running requests.
--proxy-client-cert-file string
Client certificate used to prove the identity of the aggregator or kube-apiserver when
it must call out during a request. This includes proxying requests to a user api-server
and calling out to webhook admission plugins. It is expected that this cert includes a
signature from the CA in the --requestheader-client-ca-file flag. That CA is published
in the 'extension-apiserver-authentication' configmap in the kube-system namespace.
Components receiving calls from kube-aggregator should use that CA to perform their half
of the mutual TLS verification.
--proxy-client-key-file string
Private key for the client certificate used to prove the identity of the aggregator or
kube-apiserver when it must call out during a request. This includes proxying requests
to a user api-server and calling out to webhook admission plugins.
--service-account-signing-key-file string
Path to the file that contains the current private key of the service account token
issuer. The issuer will sign issued ID tokens with this private key.
--service-cluster-ip-range string
A CIDR notation IP range from which to assign service cluster IPs. This must not overlap
with any IP ranges assigned to nodes or pods. Max of two dual-stack CIDRs is allowed.
--service-node-port-range portRange
A port range to reserve for services with NodePort visibility. This must not overlap
with the ephemeral port range on nodes. Example: '30000-32767'. Inclusive at both ends
of the range. (default 30000-32767)
Global flags:
-h, --help
help for kube-apiserver
--version version[=true]
Print version information and quitKubernetes controller
exec chpst -u kube:kube kube-controller-manager \
--kubeconfig /etc/kubernetes/controller-manager.conf \
--client-ca-file /etc/kubernetes/pki/ca.crt \
--tls-cert-file /etc/kubernetes/pki/apiserver.crt \
--tls-private-key-file /etc/kubernetes/pki/apiserver.key \
--requestheader-client-ca-file /etc/kubernetes/pki/front-proxy-ca.crt \
--cluster-signing-cert-file /etc/kubernetes/pki/ca.crt \
--cluster-signing-key-file /etc/kubernetes/pki/ca.key| Flag |
Value |
Info |
|
|
|
Flags generated by kubeadm init
kube-controller-manager \
--authentication-kubeconfig=/etc/kubernetes/controller-manager.conf \
--authorization-kubeconfig=/etc/kubernetes/controller-manager.conf \
--bind-address=127.0.0.1 \
--client-ca-file=/etc/kubernetes/pki/ca.crt \
--cluster-name=kubernetes \
--cluster-signing-cert-file=/etc/kubernetes/pki/ca.crt \
--cluster-signing-key-file=/etc/kubernetes/pki/ca.key \
--controllers=*,bootstrapsigner,tokencleaner \
--kubeconfig=/etc/kubernetes/controller-manager.conf \
--leader-elect=true \
--requestheader-client-ca-file=/etc/kubernetes/pki/front-proxy-ca.crt \
--root-ca-file=/etc/kubernetes/pki/ca.crt \
--service-account-private-key-file=/etc/kubernetes/pki/sa.key \
--use-service-account-credentials=trueUsage: kube-controller-manager
The Kubernetes controller manager is a daemon that embeds
the core control loops shipped with Kubernetes. In applications of robotics and
automation, a control loop is a non-terminating loop that regulates the state of
the system. In Kubernetes, a controller is a control loop that watches the shared
state of the cluster through the apiserver and makes changes attempting to move the
current state towards the desired state. Examples of controllers that ship with
Kubernetes today are the replication controller, endpoints controller, namespace
controller, and serviceaccounts controller.
Usage:
kube-controller-manager [flags]
Debugging flags:
--contention-profiling
Enable lock contention profiling, if profiling is enabled
--profiling
Enable profiling via web interface host:port/debug/pprof/ (default true)
Leader-migration flags:
--enable-leader-migration
Whether to enable controller leader migration.
--leader-migration-config string
Path to the config file for controller leader migration, or empty to use the value that reflects default configuration of the controller manager. The config file should be of type LeaderMigrationConfiguration, group controllermanager.config.k8s.io,
version v1alpha1.
Generic flags:
--allocate-node-cidrs
Should CIDRs for Pods be allocated and set on the cloud provider.
--cidr-allocator-type string
Type of CIDR allocator to use (default "RangeAllocator")
--cloud-config string
The path to the cloud provider configuration file. Empty string for no configuration file.
--cloud-provider string
The provider for cloud services. Empty string for no provider.
--cluster-cidr string
CIDR Range for Pods in cluster. Requires --allocate-node-cidrs to be true
--cluster-name string
The instance prefix for the cluster. (default "kubernetes")
--configure-cloud-routes
Should CIDRs allocated by allocate-node-cidrs be configured on the cloud provider. (default true)
--controller-start-interval duration
Interval between starting controller managers.
--controllers strings
A list of controllers to enable. '*' enables all on-by-default controllers, 'foo' enables the controller named 'foo', '-foo' disables the controller named 'foo'.
All controllers: attachdetach, bootstrapsigner, cloud-node-lifecycle, clusterrole-aggregation, cronjob, csrapproving, csrcleaner, csrsigning, daemonset, deployment, disruption, endpoint, endpointslice, endpointslicemirroring, ephemeral-volume,
garbagecollector, horizontalpodautoscaling, job, namespace, nodeipam, nodelifecycle, persistentvolume-binder, persistentvolume-expander, podgc, pv-protection, pvc-protection, replicaset, replicationcontroller, resourcequota, root-ca-cert-publisher,
route, service, serviceaccount, serviceaccount-token, statefulset, tokencleaner, ttl, ttl-after-finished
Disabled-by-default controllers: bootstrapsigner, tokencleaner (default [*])
--external-cloud-volume-plugin string
The plugin to use when cloud provider is set to external. Can be empty, should only be set when cloud-provider is external. Currently used to allow node and volume controllers to work for in tree cloud providers.
--feature-gates mapStringBool
A set of key=value pairs that describe feature gates for alpha/experimental features. Options are:
APIListChunking=true|false (BETA - default=true)
APIPriorityAndFairness=true|false (BETA - default=true)
APIResponseCompression=true|false (BETA - default=true)
APISelfSubjectReview=true|false (ALPHA - default=false)
APIServerIdentity=true|false (BETA - default=true)
APIServerTracing=true|false (ALPHA - default=false)
AggregatedDiscoveryEndpoint=true|false (ALPHA - default=false)
AllAlpha=true|false (ALPHA - default=false)
AllBeta=true|false (BETA - default=false)
AnyVolumeDataSource=true|false (BETA - default=true)
AppArmor=true|false (BETA - default=true)
CPUManagerPolicyAlphaOptions=true|false (ALPHA - default=false)
CPUManagerPolicyBetaOptions=true|false (BETA - default=true)
CPUManagerPolicyOptions=true|false (BETA - default=true)
CSIMigrationPortworx=true|false (BETA - default=false)
CSIMigrationRBD=true|false (ALPHA - default=false)
CSINodeExpandSecret=true|false (ALPHA - default=false)
CSIVolumeHealth=true|false (ALPHA - default=false)
ComponentSLIs=true|false (ALPHA - default=false)
ContainerCheckpoint=true|false (ALPHA - default=false)
ContextualLogging=true|false (ALPHA - default=false)
CronJobTimeZone=true|false (BETA - default=true)
CrossNamespaceVolumeDataSource=true|false (ALPHA - default=false)
CustomCPUCFSQuotaPeriod=true|false (ALPHA - default=false)
CustomResourceValidationExpressions=true|false (BETA - default=true)
DisableCloudProviders=true|false (ALPHA - default=false)
DisableKubeletCloudCredentialProviders=true|false (ALPHA - default=false)
DownwardAPIHugePages=true|false (BETA - default=true)
DynamicResourceAllocation=true|false (ALPHA - default=false)
EventedPLEG=true|false (ALPHA - default=false)
ExpandedDNSConfig=true|false (BETA - default=true)
ExperimentalHostUserNamespaceDefaulting=true|false (BETA - default=false)
GRPCContainerProbe=true|false (BETA - default=true)
GracefulNodeShutdown=true|false (BETA - default=true)
GracefulNodeShutdownBasedOnPodPriority=true|false (BETA - default=true)
HPAContainerMetrics=true|false (ALPHA - default=false)
HPAScaleToZero=true|false (ALPHA - default=false)
HonorPVReclaimPolicy=true|false (ALPHA - default=false)
IPTablesOwnershipCleanup=true|false (ALPHA - default=false)
InTreePluginAWSUnregister=true|false (ALPHA - default=false)
InTreePluginAzureDiskUnregister=true|false (ALPHA - default=false)
InTreePluginAzureFileUnregister=true|false (ALPHA - default=false)
InTreePluginGCEUnregister=true|false (ALPHA - default=false)
InTreePluginOpenStackUnregister=true|false (ALPHA - default=false)
InTreePluginPortworxUnregister=true|false (ALPHA - default=false)
InTreePluginRBDUnregister=true|false (ALPHA - default=false)
InTreePluginvSphereUnregister=true|false (ALPHA - default=false)
JobMutableNodeSchedulingDirectives=true|false (BETA - default=true)
JobPodFailurePolicy=true|false (BETA - default=true)
JobReadyPods=true|false (BETA - default=true)
KMSv2=true|false (ALPHA - default=false)
KubeletInUserNamespace=true|false (ALPHA - default=false)
KubeletPodResources=true|false (BETA - default=true)
KubeletPodResourcesGetAllocatable=true|false (BETA - default=true)
KubeletTracing=true|false (ALPHA - default=false)
LegacyServiceAccountTokenTracking=true|false (ALPHA - default=false)
LocalStorageCapacityIsolationFSQuotaMonitoring=true|false (ALPHA - default=false)
LogarithmicScaleDown=true|false (BETA - default=true)
LoggingAlphaOptions=true|false (ALPHA - default=false)
LoggingBetaOptions=true|false (BETA - default=true)
MatchLabelKeysInPodTopologySpread=true|false (ALPHA - default=false)
MaxUnavailableStatefulSet=true|false (ALPHA - default=false)
MemoryManager=true|false (BETA - default=true)
MemoryQoS=true|false (ALPHA - default=false)
MinDomainsInPodTopologySpread=true|false (BETA - default=false)
MinimizeIPTablesRestore=true|false (ALPHA - default=false)
MultiCIDRRangeAllocator=true|false (ALPHA - default=false)
NetworkPolicyStatus=true|false (ALPHA - default=false)
NodeInclusionPolicyInPodTopologySpread=true|false (BETA - default=true)
NodeOutOfServiceVolumeDetach=true|false (BETA - default=true)
NodeSwap=true|false (ALPHA - default=false)
OpenAPIEnums=true|false (BETA - default=true)
OpenAPIV3=true|false (BETA - default=true)
PDBUnhealthyPodEvictionPolicy=true|false (ALPHA - default=false)
PodAndContainerStatsFromCRI=true|false (ALPHA - default=false)
PodDeletionCost=true|false (BETA - default=true)
PodDisruptionConditions=true|false (BETA - default=true)
PodHasNetworkCondition=true|false (ALPHA - default=false)
PodSchedulingReadiness=true|false (ALPHA - default=false)
ProbeTerminationGracePeriod=true|false (BETA - default=true)
ProcMountType=true|false (ALPHA - default=false)
ProxyTerminatingEndpoints=true|false (BETA - default=true)
QOSReserved=true|false (ALPHA - default=false)
ReadWriteOncePod=true|false (ALPHA - default=false)
RecoverVolumeExpansionFailure=true|false (ALPHA - default=false)
RemainingItemCount=true|false (BETA - default=true)
RetroactiveDefaultStorageClass=true|false (BETA - default=true)
RotateKubeletServerCertificate=true|false (BETA - default=true)
SELinuxMountReadWriteOncePod=true|false (ALPHA - default=false)
SeccompDefault=true|false (BETA - default=true)
ServerSideFieldValidation=true|false (BETA - default=true)
SizeMemoryBackedVolumes=true|false (BETA - default=true)
StatefulSetAutoDeletePVC=true|false (ALPHA - default=false)
StatefulSetStartOrdinal=true|false (ALPHA - default=false)
StorageVersionAPI=true|false (ALPHA - default=false)
StorageVersionHash=true|false (BETA - default=true)
TopologyAwareHints=true|false (BETA - default=true)
TopologyManager=true|false (BETA - default=true)
TopologyManagerPolicyAlphaOptions=true|false (ALPHA - default=false)
TopologyManagerPolicyBetaOptions=true|false (BETA - default=false)
TopologyManagerPolicyOptions=true|false (ALPHA - default=false)
UserNamespacesStatelessPodsSupport=true|false (ALPHA - default=false)
ValidatingAdmissionPolicy=true|false (ALPHA - default=false)
VolumeCapacityPriority=true|false (ALPHA - default=false)
WinDSR=true|false (ALPHA - default=false)
WinOverlay=true|false (BETA - default=true)
WindowsHostNetwork=true|false (ALPHA - default=true)
--kube-api-burst int32
Burst to use while talking with kubernetes apiserver. (default 30)
--kube-api-content-type string
Content type of requests sent to apiserver. (default "application/vnd.kubernetes.protobuf")
--kube-api-qps float32
QPS to use while talking with kubernetes apiserver. (default 20)
--leader-elect
Start a leader election client and gain leadership before executing the main loop. Enable this when running replicated components for high availability. (default true)
--leader-elect-lease-duration duration
The duration that non-leader candidates will wait after observing a leadership renewal until attempting to acquire leadership of a led but unrenewed leader slot. This is effectively the maximum duration that a leader can be stopped before it is
replaced by another candidate. This is only applicable if leader election is enabled. (default 15s)
--leader-elect-renew-deadline duration
The interval between attempts by the acting master to renew a leadership slot before it stops leading. This must be less than the lease duration. This is only applicable if leader election is enabled. (default 10s)
--leader-elect-resource-lock string
The type of resource object that is used for locking during leader election. Supported options are 'leases', 'endpointsleases' and 'configmapsleases'. (default "leases")
--leader-elect-resource-name string
The name of resource object that is used for locking during leader election. (default "kube-controller-manager")
--leader-elect-resource-namespace string
The namespace of resource object that is used for locking during leader election. (default "kube-system")
--leader-elect-retry-period duration
The duration the clients should wait between attempting acquisition and renewal of a leadership. This is only applicable if leader election is enabled. (default 2s)
--min-resync-period duration
The resync period in reflectors will be random between MinResyncPeriod and 2*MinResyncPeriod. (default 12h0m0s)
--node-monitor-period duration
The period for syncing NodeStatus in NodeController. (default 5s)
--route-reconciliation-period duration
The period for reconciling routes created for Nodes by cloud provider. (default 10s)
--use-service-account-credentials
If true, use individual service account credentials for each controller.
Service controller flags:
--concurrent-service-syncs int32
The number of services that are allowed to sync concurrently. Larger number = more responsive service management, but more CPU (and network) load (default 1)
Secure serving flags:
--bind-address ip
The IP address on which to listen for the --secure-port port. The associated interface(s) must be reachable by the rest of the cluster, and by CLI/web clients. If blank or an unspecified address (0.0.0.0 or ::), all interfaces will be used. (default
0.0.0.0)
--cert-dir string
The directory where the TLS certs are located. If --tls-cert-file and --tls-private-key-file are provided, this flag will be ignored.
--http2-max-streams-per-connection int
The limit that the server gives to clients for the maximum number of streams in an HTTP/2 connection. Zero means to use golang's default.
--permit-address-sharing
If true, SO_REUSEADDR will be used when binding the port. This allows binding to wildcard IPs like 0.0.0.0 and specific IPs in parallel, and it avoids waiting for the kernel to release sockets in TIME_WAIT state. [default=false]
--permit-port-sharing
If true, SO_REUSEPORT will be used when binding the port, which allows more than one instance to bind on the same address and port. [default=false]
--secure-port int
The port on which to serve HTTPS with authentication and authorization. If 0, don't serve HTTPS at all. (default 10257)
--tls-cert-file string
File containing the default x509 Certificate for HTTPS. (CA cert, if any, concatenated after server cert). If HTTPS serving is enabled, and --tls-cert-file and --tls-private-key-file are not provided, a self-signed certificate and key are generated
for the public address and saved to the directory specified by --cert-dir.
--tls-cipher-suites strings
Comma-separated list of cipher suites for the server. If omitted, the default Go cipher suites will be used.
Preferred values: TLS_AES_128_GCM_SHA256, TLS_AES_256_GCM_SHA384, TLS_CHACHA20_POLY1305_SHA256, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_256_GCM_SHA384.
Insecure values: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_RC4_128_SHA, TLS_RSA_WITH_3DES_EDE_CBC_SHA,
TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_RC4_128_SHA.
--tls-min-version string
Minimum TLS version supported. Possible values: VersionTLS10, VersionTLS11, VersionTLS12, VersionTLS13
--tls-private-key-file string
File containing the default x509 private key matching --tls-cert-file.
--tls-sni-cert-key namedCertKey
A pair of x509 certificate and private key file paths, optionally suffixed with a list of domain patterns which are fully qualified domain names, possibly with prefixed wildcard segments. The domain patterns also allow IP addresses, but IPs should
only be used if the apiserver has visibility to the IP address requested by a client. If no domain patterns are provided, the names of the certificate are extracted. Non-wildcard matches trump over wildcard matches, explicit domain patterns trump over
extracted names. For multiple key/certificate pairs, use the --tls-sni-cert-key multiple times. Examples: "example.crt,example.key" or "foo.crt,foo.key:*.foo.com,foo.com". (default [])
Authentication flags:
--authentication-kubeconfig string
kubeconfig file pointing at the 'core' kubernetes server with enough rights to create tokenreviews.authentication.k8s.io. This is optional. If empty, all token requests are considered to be anonymous and no client CA is looked up in the cluster.
--authentication-skip-lookup
If false, the authentication-kubeconfig will be used to lookup missing authentication configuration from the cluster.
--authentication-token-webhook-cache-ttl duration
The duration to cache responses from the webhook token authenticator. (default 10s)
--authentication-tolerate-lookup-failure
If true, failures to look up missing authentication configuration from the cluster are not considered fatal. Note that this can result in authentication that treats all requests as anonymous.
--client-ca-file string
If set, any request presenting a client certificate signed by one of the authorities in the client-ca-file is authenticated with an identity corresponding to the CommonName of the client certificate.
--requestheader-allowed-names strings
List of client certificate common names to allow to provide usernames in headers specified by --requestheader-username-headers. If empty, any client certificate validated by the authorities in --requestheader-client-ca-file is allowed.
--requestheader-client-ca-file string
Root certificate bundle to use to verify client certificates on incoming requests before trusting usernames in headers specified by --requestheader-username-headers. WARNING: generally do not depend on authorization being already done for incoming
requests.
--requestheader-extra-headers-prefix strings
List of request header prefixes to inspect. X-Remote-Extra- is suggested. (default [x-remote-extra-])
--requestheader-group-headers strings
List of request headers to inspect for groups. X-Remote-Group is suggested. (default [x-remote-group])
--requestheader-username-headers strings
List of request headers to inspect for usernames. X-Remote-User is common. (default [x-remote-user])
Authorization flags:
--authorization-always-allow-paths strings
A list of HTTP paths to skip during authorization, i.e. these are authorized without contacting the 'core' kubernetes server. (default [/healthz,/readyz,/livez])
--authorization-kubeconfig string
kubeconfig file pointing at the 'core' kubernetes server with enough rights to create subjectaccessreviews.authorization.k8s.io. This is optional. If empty, all requests not skipped by authorization are forbidden.
--authorization-webhook-cache-authorized-ttl duration
The duration to cache 'authorized' responses from the webhook authorizer. (default 10s)
--authorization-webhook-cache-unauthorized-ttl duration
The duration to cache 'unauthorized' responses from the webhook authorizer. (default 10s)
Attachdetach controller flags:
--attach-detach-reconcile-sync-period duration
The reconciler sync wait time between volume attach detach. This duration must be larger than one second, and increasing this value from the default may allow for volumes to be mismatched with pods. (default 1m0s)
--disable-attach-detach-reconcile-sync
Disable volume attach detach reconciler sync. Disabling this may cause volumes to be mismatched with pods. Use wisely.
Csrsigning controller flags:
--cluster-signing-cert-file string
Filename containing a PEM-encoded X509 CA certificate used to issue cluster-scoped certificates. If specified, no more specific --cluster-signing-* flag may be specified.
--cluster-signing-duration duration
The max length of duration signed certificates will be given. Individual CSRs may request shorter certs by setting spec.expirationSeconds. (default 8760h0m0s)
--cluster-signing-key-file string
Filename containing a PEM-encoded RSA or ECDSA private key used to sign cluster-scoped certificates. If specified, no more specific --cluster-signing-* flag may be specified.
--cluster-signing-kube-apiserver-client-cert-file string
Filename containing a PEM-encoded X509 CA certificate used to issue certificates for the kubernetes.io/kube-apiserver-client signer. If specified, --cluster-signing-{cert,key}-file must not be set.
--cluster-signing-kube-apiserver-client-key-file string
Filename containing a PEM-encoded RSA or ECDSA private key used to sign certificates for the kubernetes.io/kube-apiserver-client signer. If specified, --cluster-signing-{cert,key}-file must not be set.
--cluster-signing-kubelet-client-cert-file string
Filename containing a PEM-encoded X509 CA certificate used to issue certificates for the kubernetes.io/kube-apiserver-client-kubelet signer. If specified, --cluster-signing-{cert,key}-file must not be set.
--cluster-signing-kubelet-client-key-file string
Filename containing a PEM-encoded RSA or ECDSA private key used to sign certificates for the kubernetes.io/kube-apiserver-client-kubelet signer. If specified, --cluster-signing-{cert,key}-file must not be set.
--cluster-signing-kubelet-serving-cert-file string
Filename containing a PEM-encoded X509 CA certificate used to issue certificates for the kubernetes.io/kubelet-serving signer. If specified, --cluster-signing-{cert,key}-file must not be set.
--cluster-signing-kubelet-serving-key-file string
Filename containing a PEM-encoded RSA or ECDSA private key used to sign certificates for the kubernetes.io/kubelet-serving signer. If specified, --cluster-signing-{cert,key}-file must not be set.
--cluster-signing-legacy-unknown-cert-file string
Filename containing a PEM-encoded X509 CA certificate used to issue certificates for the kubernetes.io/legacy-unknown signer. If specified, --cluster-signing-{cert,key}-file must not be set.
--cluster-signing-legacy-unknown-key-file string
Filename containing a PEM-encoded RSA or ECDSA private key used to sign certificates for the kubernetes.io/legacy-unknown signer. If specified, --cluster-signing-{cert,key}-file must not be set.
Deployment controller flags:
--concurrent-deployment-syncs int32
The number of deployment objects that are allowed to sync concurrently. Larger number = more responsive deployments, but more CPU (and network) load (default 5)
Statefulset controller flags:
--concurrent-statefulset-syncs int32
The number of statefulset objects that are allowed to sync concurrently. Larger number = more responsive statefulsets, but more CPU (and network) load (default 5)
Endpoint controller flags:
--concurrent-endpoint-syncs int32
The number of endpoint syncing operations that will be done concurrently. Larger number = faster endpoint updating, but more CPU (and network) load (default 5)
--endpoint-updates-batch-period duration
The length of endpoint updates batching period. Processing of pod changes will be delayed by this duration to join them with potential upcoming updates and reduce the overall number of endpoints updates. Larger number = higher endpoint programming
latency, but lower number of endpoints revision generated
Endpointslice controller flags:
--concurrent-service-endpoint-syncs int32
The number of service endpoint syncing operations that will be done concurrently. Larger number = faster endpoint slice updating, but more CPU (and network) load. Defaults to 5. (default 5)
--endpointslice-updates-batch-period duration
The length of endpoint slice updates batching period. Processing of pod changes will be delayed by this duration to join them with potential upcoming updates and reduce the overall number of endpoints updates. Larger number = higher endpoint
programming latency, but lower number of endpoints revision generated
--max-endpoints-per-slice int32
The maximum number of endpoints that will be added to an EndpointSlice. More endpoints per slice will result in less endpoint slices, but larger resources. Defaults to 100. (default 100)
Endpointslicemirroring controller flags:
--mirroring-concurrent-service-endpoint-syncs int32
The number of service endpoint syncing operations that will be done concurrently by the EndpointSliceMirroring controller. Larger number = faster endpoint slice updating, but more CPU (and network) load. Defaults to 5. (default 5)
--mirroring-endpointslice-updates-batch-period duration
The length of EndpointSlice updates batching period for EndpointSliceMirroring controller. Processing of EndpointSlice changes will be delayed by this duration to join them with potential upcoming updates and reduce the overall number of EndpointSlice
updates. Larger number = higher endpoint programming latency, but lower number of endpoints revision generated
--mirroring-max-endpoints-per-subset int32
The maximum number of endpoints that will be added to an EndpointSlice by the EndpointSliceMirroring controller. More endpoints per slice will result in less endpoint slices, but larger resources. Defaults to 100. (default 1000)
Ephemeralvolume controller flags:
--concurrent-ephemeralvolume-syncs int32
The number of ephemeral volume syncing operations that will be done concurrently. Larger number = faster ephemeral volume updating, but more CPU (and network) load (default 5)
Garbagecollector controller flags:
--concurrent-gc-syncs int32
The number of garbage collector workers that are allowed to sync concurrently. (default 20)
--enable-garbage-collector
Enables the generic garbage collector. MUST be synced with the corresponding flag of the kube-apiserver. (default true)
Horizontalpodautoscaling controller flags:
--concurrent-horizontal-pod-autoscaler-syncs int32
The number of horizontal pod autoscaler objects that are allowed to sync concurrently. Larger number = more responsive horizontal pod autoscaler objects processing, but more CPU (and network) load. (default 5)
--horizontal-pod-autoscaler-cpu-initialization-period duration
The period after pod start when CPU samples might be skipped. (default 5m0s)
--horizontal-pod-autoscaler-downscale-stabilization duration
The period for which autoscaler will look backwards and not scale down below any recommendation it made during that period. (default 5m0s)
--horizontal-pod-autoscaler-initial-readiness-delay duration
The period after pod start during which readiness changes will be treated as initial readiness. (default 30s)
--horizontal-pod-autoscaler-sync-period duration
The period for syncing the number of pods in horizontal pod autoscaler. (default 15s)
--horizontal-pod-autoscaler-tolerance float
The minimum change (from 1.0) in the desired-to-actual metrics ratio for the horizontal pod autoscaler to consider scaling. (default 0.1)
Namespace controller flags:
--concurrent-namespace-syncs int32
The number of namespace objects that are allowed to sync concurrently. Larger number = more responsive namespace termination, but more CPU (and network) load (default 10)
--namespace-sync-period duration
The period for syncing namespace life-cycle updates (default 5m0s)
Nodeipam controller flags:
--node-cidr-mask-size int32
Mask size for node cidr in cluster. Default is 24 for IPv4 and 64 for IPv6.
--node-cidr-mask-size-ipv4 int32
Mask size for IPv4 node cidr in dual-stack cluster. Default is 24.
--node-cidr-mask-size-ipv6 int32
Mask size for IPv6 node cidr in dual-stack cluster. Default is 64.
--service-cluster-ip-range string
CIDR Range for Services in cluster. Requires --allocate-node-cidrs to be true
Nodelifecycle controller flags:
--large-cluster-size-threshold int32
Number of nodes from which NodeController treats the cluster as large for the eviction logic purposes. --secondary-node-eviction-rate is implicitly overridden to 0 for clusters this size or smaller. (default 50)
--node-eviction-rate float32
Number of nodes per second on which pods are deleted in case of node failure when a zone is healthy (see --unhealthy-zone-threshold for definition of healthy/unhealthy). Zone refers to entire cluster in non-multizone clusters. (default 0.1)
--node-monitor-grace-period duration
Amount of time which we allow running Node to be unresponsive before marking it unhealthy. Must be N times more than kubelet's nodeStatusUpdateFrequency, where N means number of retries allowed for kubelet to post node status. (default 40s)
--node-startup-grace-period duration
Amount of time which we allow starting Node to be unresponsive before marking it unhealthy. (default 1m0s)
--secondary-node-eviction-rate float32
Number of nodes per second on which pods are deleted in case of node failure when a zone is unhealthy (see --unhealthy-zone-threshold for definition of healthy/unhealthy). Zone refers to entire cluster in non-multizone clusters. This value is
implicitly overridden to 0 if the cluster size is smaller than --large-cluster-size-threshold. (default 0.01)
--unhealthy-zone-threshold float32
Fraction of Nodes in a zone which needs to be not Ready (minimum 3) for zone to be treated as unhealthy. (default 0.55)
Persistentvolume-binder controller flags:
--enable-dynamic-provisioning
Enable dynamic provisioning for environments that support it. (default true)
--enable-hostpath-provisioner
Enable HostPath PV provisioning when running without a cloud provider. This allows testing and development of provisioning features. HostPath provisioning is not supported in any way, won't work in a multi-node cluster, and should not be used for
anything other than testing or development.
--flex-volume-plugin-dir string
Full path of the directory in which the flex volume plugin should search for additional third party volume plugins. (default "/usr/libexec/kubernetes/kubelet-plugins/volume/exec/")
--pv-recycler-increment-timeout-nfs int32
the increment of time added per Gi to ActiveDeadlineSeconds for an NFS scrubber pod (default 30)
--pv-recycler-minimum-timeout-hostpath int32
The minimum ActiveDeadlineSeconds to use for a HostPath Recycler pod. This is for development and testing only and will not work in a multi-node cluster. (default 60)
--pv-recycler-minimum-timeout-nfs int32
The minimum ActiveDeadlineSeconds to use for an NFS Recycler pod (default 300)
--pv-recycler-pod-template-filepath-hostpath string
The file path to a pod definition used as a template for HostPath persistent volume recycling. This is for development and testing only and will not work in a multi-node cluster.
--pv-recycler-pod-template-filepath-nfs string
The file path to a pod definition used as a template for NFS persistent volume recycling
--pv-recycler-timeout-increment-hostpath int32
the increment of time added per Gi to ActiveDeadlineSeconds for a HostPath scrubber pod. This is for development and testing only and will not work in a multi-node cluster. (default 30)
--pvclaimbinder-sync-period duration
The period for syncing persistent volumes and persistent volume claims (default 15s)
--volume-host-allow-local-loopback
If false, deny local loopback IPs in addition to any CIDR ranges in --volume-host-cidr-denylist (default true)
--volume-host-cidr-denylist strings
A comma-separated list of CIDR ranges to avoid from volume plugins.
Podgc controller flags:
--terminated-pod-gc-threshold int32
Number of terminated pods that can exist before the terminated pod garbage collector starts deleting terminated pods. If <= 0, the terminated pod garbage collector is disabled. (default 12500)
Replicaset controller flags:
--concurrent-replicaset-syncs int32
The number of replica sets that are allowed to sync concurrently. Larger number = more responsive replica management, but more CPU (and network) load (default 5)
Replicationcontroller flags:
--concurrent-rc-syncs int32
The number of replication controllers that are allowed to sync concurrently. Larger number = more responsive replica management, but more CPU (and network) load (default 5)
Resourcequota controller flags:
--concurrent-resource-quota-syncs int32
The number of resource quotas that are allowed to sync concurrently. Larger number = more responsive quota management, but more CPU (and network) load (default 5)
--resource-quota-sync-period duration
The period for syncing quota usage status in the system (default 5m0s)
Serviceaccount controller flags:
--concurrent-serviceaccount-token-syncs int32
The number of service account token objects that are allowed to sync concurrently. Larger number = more responsive token generation, but more CPU (and network) load (default 5)
--root-ca-file string
If set, this root certificate authority will be included in service account's token secret. This must be a valid PEM-encoded CA bundle.
--service-account-private-key-file string
Filename containing a PEM-encoded private RSA or ECDSA key used to sign service account tokens.
Ttl-after-finished controller flags:
--concurrent-ttl-after-finished-syncs int32
The number of TTL-after-finished controller workers that are allowed to sync concurrently. (default 5)
Metrics flags:
--allow-metric-labels stringToString
The map from metric-label to value allow-list of this label. The key's format is <MetricName>,<LabelName>. The value's format is <allowed_value>,<allowed_value>...e.g. metric1,label1='v1,v2,v3', metric1,label2='v1,v2,v3' metric2,label1='v1,v2,v3'.
(default [])
--disabled-metrics strings
This flag provides an escape hatch for misbehaving metrics. You must provide the fully qualified metric name in order to disable it. Disclaimer: disabling metrics is higher in precedence than showing hidden metrics.
--show-hidden-metrics-for-version string
The previous version for which you want to show hidden metrics. Only the previous minor version is meaningful, other values will not be allowed. The format is <major>.<minor>, e.g.: '1.16'. The purpose of this format is make sure you have the
opportunity to notice if the next release hides additional metrics, rather than being surprised when they are permanently removed in the release after that.
Logs flags:
--log-flush-frequency duration
Maximum number of seconds between log flushes (default 5s)
--log-json-info-buffer-size quantity
[Alpha] In JSON format with split output streams, the info messages can be buffered for a while to increase performance. The default value of zero bytes disables buffering. The size can be specified as number of bytes (512), multiples of 1000 (1K),
multiples of 1024 (2Ki), or powers of those (3M, 4G, 5Mi, 6Gi). Enable the LoggingAlphaOptions feature gate to use this.
--log-json-split-stream
[Alpha] In JSON format, write error messages to stderr and info messages to stdout. The default is to write a single stream to stdout. Enable the LoggingAlphaOptions feature gate to use this.
--logging-format string
Sets the log format. Permitted formats: "json" (gated by LoggingBetaOptions), "text". (default "text")
-v, --v Level
number for the log level verbosity
--vmodule pattern=N,...
comma-separated list of pattern=N settings for file-filtered logging (only works for text log format)
Misc flags:
--kubeconfig string
Path to kubeconfig file with authorization and master location information.
--master string
The address of the Kubernetes API server (overrides any value in kubeconfig).
Global flags:
-h, --help
help for kube-controller-manager
--version version[=true]
Print version information and quitKubernetes
Services: Node
Kublet
exec kubelet --kubeconfig /etc/kubernetes/kubelet.conf \
--container-runtime-endpoint unix:///run/containerd/containerd.sock #/run/containerd/containerd.sockUsage: kublet
The kubelet is the primary "node agent" that runs on each
node. It can register the node with the apiserver using one of: the hostname; a flag to
override the hostname; or specific logic for a cloud provider.
The kubelet works in terms of a PodSpec. A PodSpec is a YAML or JSON object
that describes a pod. The kubelet takes a set of PodSpecs that are provided through
various mechanisms (primarily through the apiserver) and ensures that the containers
described in those PodSpecs are running and healthy. The kubelet doesn't manage
containers which were not created by Kubernetes.
Other than from an PodSpec from the apiserver, there are two ways that a container
manifest can be provided to the Kubelet.
File: Path passed as a flag on the command line. Files under this path will be monitored
periodically for updates. The monitoring period is 20s by default and is configurable
via a flag.
HTTP endpoint: HTTP endpoint passed as a parameter on the command line. This endpoint
is checked every 20 seconds (also configurable with a flag).
Usage:
kubelet [flags]
Flags:
--address ip The IP address for the Kubelet to serve on (set to '0.0.0.0' or '::' for listening in all interfaces and IP families) (default 0.0.0.0) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--allowed-unsafe-sysctls strings Comma-separated whitelist of unsafe sysctls or unsafe sysctl patterns (ending in *). Use these at your own risk. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--anonymous-auth Enables anonymous requests to the Kubelet server. Requests that are not rejected by another authentication method are treated as anonymous requests. Anonymous requests have a username of system:anonymous, and a group name of system:unauthenticated. (default true) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--application-metrics-count-limit int Max number of application metrics to store (per container) (default 100) (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--authentication-token-webhook Use the TokenReview API to determine authentication for bearer tokens. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--authentication-token-webhook-cache-ttl duration The duration to cache responses from the webhook token authenticator. (default 2m0s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--authorization-mode string Authorization mode for Kubelet server. Valid options are AlwaysAllow or Webhook. Webhook mode uses the SubjectAccessReview API to determine authorization. (default "AlwaysAllow") (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--authorization-webhook-cache-authorized-ttl duration The duration to cache 'authorized' responses from the webhook authorizer. (default 5m0s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--authorization-webhook-cache-unauthorized-ttl duration The duration to cache 'unauthorized' responses from the webhook authorizer. (default 30s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--azure-container-registry-config string Path to the file containing Azure container registry configuration information.
--boot-id-file string Comma-separated list of files to check for boot-id. Use the first one that exists. (default "/proc/sys/kernel/random/boot_id") (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--bootstrap-kubeconfig string Path to a kubeconfig file that will be used to get client certificate for kubelet. If the file specified by --kubeconfig does not exist, the bootstrap kubeconfig is used to request a client certificate from the API server. On success, a kubeconfig file referencing the generated client certificate and key is written to the path specified by --kubeconfig. The client certificate and key file will be stored in the directory pointed by --cert-dir.
--cert-dir string The directory where the TLS certs are located. If --tls-cert-file and --tls-private-key-file are provided, this flag will be ignored. (default "/var/lib/kubelet/pki")
--cgroup-driver string Driver that the kubelet uses to manipulate cgroups on the host. Possible values: 'cgroupfs', 'systemd' (default "cgroupfs") (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--cgroup-root string Optional root cgroup to use for pods. This is handled by the container runtime on a best effort basis. Default: '', which means use the container runtime default. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--cgroups-per-qos Enable creation of QoS cgroup hierarchy, if true top level QoS and pod cgroups are created. (default true) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--client-ca-file string If set, any request presenting a client certificate signed by one of the authorities in the client-ca-file is authenticated with an identity corresponding to the CommonName of the client certificate. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--cloud-config string The path to the cloud provider configuration file. Empty string for no configuration file. (DEPRECATED: will be removed in 1.25 or later, in favor of removing cloud provider code from Kubelet.)
--cloud-provider string The provider for cloud services. Set to empty string for running with no cloud provider. If set, the cloud provider determines the name of the node (consult cloud provider documentation to determine if and how the hostname is used). (DEPRECATED: will be removed in 1.25 or later, in favor of removing cloud provider code from Kubelet.)
--cluster-dns strings Comma-separated list of DNS server IP address. This value is used for containers DNS server in case of Pods with "dnsPolicy=ClusterFirst". Note: all DNS servers appearing in the list MUST serve the same set of records otherwise name resolution within the cluster may not work correctly. There is no guarantee as to which DNS server may be contacted for name resolution. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--cluster-domain string Domain for this cluster. If set, kubelet will configure all containers to search this domain in addition to the host's search domains (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--config string The Kubelet will load its initial configuration from this file. The path may be absolute or relative; relative paths start at the Kubelet's current working directory. Omit this flag to use the built-in default configuration values. Command-line flags override configuration from this file.
--container-hints string location of the container hints file (default "/etc/cadvisor/container_hints.json") (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--container-log-max-files int32 <Warning: Beta feature> Set the maximum number of container log files that can be present for a container. The number must be >= 2. This flag can only be used with --container-runtime=remote. (default 5) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--container-log-max-size string <Warning: Beta feature> Set the maximum size (e.g. 10Mi) of container log file before it is rotated. This flag can only be used with --container-runtime=remote. (default "10Mi") (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--container-runtime string The container runtime to use. Possible value: 'remote'. (default "remote") (DEPRECATED: will be removed in 1.27 as the only valid value is 'remote')
--container-runtime-endpoint string The endpoint of remote runtime service. Unix Domain Sockets are supported on Linux, while npipe and tcp endpoints are supported on Windows. Examples:'unix:///path/to/runtime.sock', 'npipe:////./pipe/runtime'
--containerd string containerd endpoint (default "/run/containerd/containerd.sock") (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--containerd-namespace string containerd namespace (default "k8s.io") (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--contention-profiling Enable lock contention profiling, if profiling is enabled (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--cpu-cfs-quota Enable CPU CFS quota enforcement for containers that specify CPU limits (default true) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--cpu-cfs-quota-period duration Sets CPU CFS quota period value, cpu.cfs_period_us, defaults to Linux Kernel default (default 100ms) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--cpu-manager-policy string CPU Manager policy to use. Possible values: 'none', 'static'. (default "none") (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--cpu-manager-policy-options mapStringString A set of key=value CPU Manager policy options to use, to fine tune their behaviour. If not supplied, keep the default behaviour. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--cpu-manager-reconcile-period duration <Warning: Alpha feature> CPU Manager reconciliation period. Examples: '10s', or '1m'. If not supplied, defaults to 'NodeStatusUpdateFrequency' (default 10s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--enable-controller-attach-detach Enables the Attach/Detach controller to manage attachment/detachment of volumes scheduled to this node, and disables kubelet from executing any attach/detach operations (default true) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--enable-debugging-handlers Enables server endpoints for log collection and local running of containers and commands (default true) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--enable-load-reader Whether to enable cpu load reader (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--enable-server Enable the Kubelet's server (default true) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--enforce-node-allocatable strings A comma separated list of levels of node allocatable enforcement to be enforced by kubelet. Acceptable options are 'none', 'pods', 'system-reserved', and 'kube-reserved'. If the latter two options are specified, '--system-reserved-cgroup' and '--kube-reserved-cgroup' must also be set, respectively. If 'none' is specified, no additional options should be set. See https://kubernetes.io/docs/tasks/administer-cluster/reserve-compute-resources/ for more details. (default [pods]) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--event-burst int32 Maximum size of a bursty event records, temporarily allows event records to burst to this number, while still not exceeding event-qps. The number must be >= 0. If 0 will use DefaultBurst: 10. (default 10) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--event-qps int32 QPS to limit event creations. The number must be >= 0. If 0 will use DefaultQPS: 5. (default 5) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--event-storage-age-limit string Max length of time for which to store events (per type). Value is a comma separated list of key values, where the keys are event types (e.g.: creation, oom) or "default" and the value is a duration. Default is applied to all non-specified event types (default "default=0") (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--event-storage-event-limit string Max number of events to store (per type). Value is a comma separated list of key values, where the keys are event types (e.g.: creation, oom) or "default" and the value is an integer. Default is applied to all non-specified event types (default "default=0") (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--eviction-hard mapStringString A set of eviction thresholds (e.g. memory.available<1Gi) that if met would trigger a pod eviction. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--eviction-max-pod-grace-period int32 Maximum allowed grace period (in seconds) to use when terminating pods in response to a soft eviction threshold being met. If negative, defer to pod specified value. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--eviction-minimum-reclaim mapStringString A set of minimum reclaims (e.g. imagefs.available=2Gi) that describes the minimum amount of resource the kubelet will reclaim when performing a pod eviction if that resource is under pressure. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--eviction-pressure-transition-period duration Duration for which the kubelet has to wait before transitioning out of an eviction pressure condition. (default 5m0s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--eviction-soft mapStringString A set of eviction thresholds (e.g. memory.available<1.5Gi) that if met over a corresponding grace period would trigger a pod eviction. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--eviction-soft-grace-period mapStringString A set of eviction grace periods (e.g. memory.available=1m30s) that correspond to how long a soft eviction threshold must hold before triggering a pod eviction. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--exit-on-lock-contention Whether kubelet should exit upon lock-file contention.
--experimental-allocatable-ignore-eviction When set to 'true', Hard Eviction Thresholds will be ignored while calculating Node Allocatable. See https://kubernetes.io/docs/tasks/administer-cluster/reserve-compute-resources/ for more details. [default=false] (DEPRECATED: will be removed in 1.25 or later.)
--experimental-mounter-path string [Experimental] Path of mounter binary. Leave empty to use the default mount. (DEPRECATED: will be removed in 1.25 or later. in favor of using CSI.)
--fail-swap-on Makes the Kubelet fail to start if swap is enabled on the node. (default true) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--feature-gates mapStringBool A set of key=value pairs that describe feature gates for alpha/experimental features. Options are:
APIListChunking=true|false (BETA - default=true)
APIPriorityAndFairness=true|false (BETA - default=true)
APIResponseCompression=true|false (BETA - default=true)
APISelfSubjectReview=true|false (ALPHA - default=false)
APIServerIdentity=true|false (BETA - default=true)
APIServerTracing=true|false (ALPHA - default=false)
AggregatedDiscoveryEndpoint=true|false (ALPHA - default=false)
AllAlpha=true|false (ALPHA - default=false)
AllBeta=true|false (BETA - default=false)
AnyVolumeDataSource=true|false (BETA - default=true)
AppArmor=true|false (BETA - default=true)
CPUManagerPolicyAlphaOptions=true|false (ALPHA - default=false)
CPUManagerPolicyBetaOptions=true|false (BETA - default=true)
CPUManagerPolicyOptions=true|false (BETA - default=true)
CSIMigrationPortworx=true|false (BETA - default=false)
CSIMigrationRBD=true|false (ALPHA - default=false)
CSINodeExpandSecret=true|false (ALPHA - default=false)
CSIVolumeHealth=true|false (ALPHA - default=false)
ComponentSLIs=true|false (ALPHA - default=false)
ContainerCheckpoint=true|false (ALPHA - default=false)
ContextualLogging=true|false (ALPHA - default=false)
CronJobTimeZone=true|false (BETA - default=true)
CrossNamespaceVolumeDataSource=true|false (ALPHA - default=false)
CustomCPUCFSQuotaPeriod=true|false (ALPHA - default=false)
CustomResourceValidationExpressions=true|false (BETA - default=true)
DisableCloudProviders=true|false (ALPHA - default=false)
DisableKubeletCloudCredentialProviders=true|false (ALPHA - default=false)
DownwardAPIHugePages=true|false (BETA - default=true)
DynamicResourceAllocation=true|false (ALPHA - default=false)
EventedPLEG=true|false (ALPHA - default=false)
ExpandedDNSConfig=true|false (BETA - default=true)
ExperimentalHostUserNamespaceDefaulting=true|false (BETA - default=false)
GRPCContainerProbe=true|false (BETA - default=true)
GracefulNodeShutdown=true|false (BETA - default=true)
GracefulNodeShutdownBasedOnPodPriority=true|false (BETA - default=true)
HPAContainerMetrics=true|false (ALPHA - default=false)
HPAScaleToZero=true|false (ALPHA - default=false)
HonorPVReclaimPolicy=true|false (ALPHA - default=false)
IPTablesOwnershipCleanup=true|false (ALPHA - default=false)
InTreePluginAWSUnregister=true|false (ALPHA - default=false)
InTreePluginAzureDiskUnregister=true|false (ALPHA - default=false)
InTreePluginAzureFileUnregister=true|false (ALPHA - default=false)
InTreePluginGCEUnregister=true|false (ALPHA - default=false)
InTreePluginOpenStackUnregister=true|false (ALPHA - default=false)
InTreePluginPortworxUnregister=true|false (ALPHA - default=false)
InTreePluginRBDUnregister=true|false (ALPHA - default=false)
InTreePluginvSphereUnregister=true|false (ALPHA - default=false)
JobMutableNodeSchedulingDirectives=true|false (BETA - default=true)
JobPodFailurePolicy=true|false (BETA - default=true)
JobReadyPods=true|false (BETA - default=true)
KMSv2=true|false (ALPHA - default=false)
KubeletInUserNamespace=true|false (ALPHA - default=false)
KubeletPodResources=true|false (BETA - default=true)
KubeletPodResourcesGetAllocatable=true|false (BETA - default=true)
KubeletTracing=true|false (ALPHA - default=false)
LegacyServiceAccountTokenTracking=true|false (ALPHA - default=false)
LocalStorageCapacityIsolationFSQuotaMonitoring=true|false (ALPHA - default=false)
LogarithmicScaleDown=true|false (BETA - default=true)
LoggingAlphaOptions=true|false (ALPHA - default=false)
LoggingBetaOptions=true|false (BETA - default=true)
MatchLabelKeysInPodTopologySpread=true|false (ALPHA - default=false)
MaxUnavailableStatefulSet=true|false (ALPHA - default=false)
MemoryManager=true|false (BETA - default=true)
MemoryQoS=true|false (ALPHA - default=false)
MinDomainsInPodTopologySpread=true|false (BETA - default=false)
MinimizeIPTablesRestore=true|false (ALPHA - default=false)
MultiCIDRRangeAllocator=true|false (ALPHA - default=false)
NetworkPolicyStatus=true|false (ALPHA - default=false)
NodeInclusionPolicyInPodTopologySpread=true|false (BETA - default=true)
NodeOutOfServiceVolumeDetach=true|false (BETA - default=true)
NodeSwap=true|false (ALPHA - default=false)
OpenAPIEnums=true|false (BETA - default=true)
OpenAPIV3=true|false (BETA - default=true)
PDBUnhealthyPodEvictionPolicy=true|false (ALPHA - default=false)
PodAndContainerStatsFromCRI=true|false (ALPHA - default=false)
PodDeletionCost=true|false (BETA - default=true)
PodDisruptionConditions=true|false (BETA - default=true)
PodHasNetworkCondition=true|false (ALPHA - default=false)
PodSchedulingReadiness=true|false (ALPHA - default=false)
ProbeTerminationGracePeriod=true|false (BETA - default=true)
ProcMountType=true|false (ALPHA - default=false)
ProxyTerminatingEndpoints=true|false (BETA - default=true)
QOSReserved=true|false (ALPHA - default=false)
ReadWriteOncePod=true|false (ALPHA - default=false)
RecoverVolumeExpansionFailure=true|false (ALPHA - default=false)
RemainingItemCount=true|false (BETA - default=true)
RetroactiveDefaultStorageClass=true|false (BETA - default=true)
RotateKubeletServerCertificate=true|false (BETA - default=true)
SELinuxMountReadWriteOncePod=true|false (ALPHA - default=false)
SeccompDefault=true|false (BETA - default=true)
ServerSideFieldValidation=true|false (BETA - default=true)
SizeMemoryBackedVolumes=true|false (BETA - default=true)
StatefulSetAutoDeletePVC=true|false (ALPHA - default=false)
StatefulSetStartOrdinal=true|false (ALPHA - default=false)
StorageVersionAPI=true|false (ALPHA - default=false)
StorageVersionHash=true|false (BETA - default=true)
TopologyAwareHints=true|false (BETA - default=true)
TopologyManager=true|false (BETA - default=true)
TopologyManagerPolicyAlphaOptions=true|false (ALPHA - default=false)
TopologyManagerPolicyBetaOptions=true|false (BETA - default=false)
TopologyManagerPolicyOptions=true|false (ALPHA - default=false)
UserNamespacesStatelessPodsSupport=true|false (ALPHA - default=false)
ValidatingAdmissionPolicy=true|false (ALPHA - default=false)
VolumeCapacityPriority=true|false (ALPHA - default=false)
WinDSR=true|false (ALPHA - default=false)
WinOverlay=true|false (BETA - default=true)
WindowsHostNetwork=true|false (ALPHA - default=true) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--file-check-frequency duration Duration between checking config files for new data (default 20s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--global-housekeeping-interval duration Interval between global housekeepings (default 1m0s) (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--hairpin-mode string How should the kubelet setup hairpin NAT. This allows endpoints of a Service to loadbalance back to themselves if they should try to access their own Service. Valid values are "promiscuous-bridge", "hairpin-veth" and "none". (default "promiscuous-bridge") (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--healthz-bind-address ip The IP address for the healthz server to serve on (set to '0.0.0.0' or '::' for listening in all interfaces and IP families) (default 127.0.0.1) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--healthz-port int32 The port of the localhost healthz endpoint (set to 0 to disable) (default 10248) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
-h, --help help for kubelet
--hostname-override string If non-empty, will use this string as identification instead of the actual hostname. If --cloud-provider is set, the cloud provider determines the name of the node (consult cloud provider documentation to determine if and how the hostname is used).
--housekeeping-interval duration Interval between container housekeepings (default 10s)
--http-check-frequency duration Duration between checking http for new data (default 20s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--image-credential-provider-bin-dir string The path to the directory where credential provider plugin binaries are located.
--image-credential-provider-config string The path to the credential provider plugin config file.
--image-gc-high-threshold int32 The percent of disk usage after which image garbage collection is always run. Values must be within the range [0, 100], To disable image garbage collection, set to 100. (default 85) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--image-gc-low-threshold int32 The percent of disk usage before which image garbage collection is never run. Lowest disk usage to garbage collect to. Values must be within the range [0, 100] and should not be larger than that of --image-gc-high-threshold. (default 80) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--image-service-endpoint string The endpoint of remote image service. If not specified, it will be the same with --container-runtime-endpoint by default. Unix Domain Socket are supported on Linux, while npipe and tcp endpoints are supported on Windows. Examples:'unix:///path/to/runtime.sock', 'npipe:////./pipe/runtime'
--iptables-drop-bit int32 The bit of the fwmark space to mark packets for dropping. Must be within the range [0, 31]. (default 15) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--iptables-masquerade-bit int32 The bit of the fwmark space to mark packets for SNAT. Must be within the range [0, 31]. Please match this parameter with corresponding parameter in kube-proxy. (default 14) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--keep-terminated-pod-volumes Keep terminated pod volumes mounted to the node after the pod terminates. Can be useful for debugging volume related issues. (DEPRECATED: will be removed in a future version)
--kernel-memcg-notification If enabled, the kubelet will integrate with the kernel memcg notification to determine if memory eviction thresholds are crossed rather than polling. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--kube-api-burst int32 Burst to use while talking with kubernetes apiserver. The number must be >= 0. If 0 will use DefaultBurst: 10. Doesn't cover events and node heartbeat apis which rate limiting is controlled by a different set of flags (default 10) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--kube-api-content-type string Content type of requests sent to apiserver. (default "application/vnd.kubernetes.protobuf") (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--kube-api-qps int32 QPS to use while talking with kubernetes apiserver. The number must be >= 0. If 0 will use DefaultQPS: 5. Doesn't cover events and node heartbeat apis which rate limiting is controlled by a different set of flags (default 5) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--kube-reserved mapStringString A set of ResourceName=ResourceQuantity (e.g. cpu=200m,memory=500Mi,ephemeral-storage=1Gi) pairs that describe resources reserved for kubernetes system components. Currently only cpu, memory and local ephemeral storage for root file system are supported. See https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/ for more detail. [default=none] (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--kube-reserved-cgroup string Absolute name of the top level cgroup that is used to manage kubernetes components for which compute resources were reserved via '--kube-reserved' flag. Ex. '/kube-reserved'. [default=''] (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--kubeconfig string Path to a kubeconfig file, specifying how to connect to the API server. Providing --kubeconfig enables API server mode, omitting --kubeconfig enables standalone mode.
--kubelet-cgroups string Optional absolute name of cgroups to create and run the Kubelet in. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--local-storage-capacity-isolation If true, local ephemeral storage isolation is enabled. Otherwise, local storage isolation feature will be disabled (default true) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--lock-file string <Warning: Alpha feature> The path to file for kubelet to use as a lock file.
--log-cadvisor-usage Whether to log the usage of the cAdvisor container (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--log-flush-frequency duration Maximum number of seconds between log flushes (default 5s)
--log-json-info-buffer-size quantity [Alpha] In JSON format with split output streams, the info messages can be buffered for a while to increase performance. The default value of zero bytes disables buffering. The size can be specified as number of bytes (512), multiples of 1000 (1K), multiples of 1024 (2Ki), or powers of those (3M, 4G, 5Mi, 6Gi). Enable the LoggingAlphaOptions feature gate to use this. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--log-json-split-stream [Alpha] In JSON format, write error messages to stderr and info messages to stdout. The default is to write a single stream to stdout. Enable the LoggingAlphaOptions feature gate to use this. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--logging-format string Sets the log format. Permitted formats: "json" (gated by LoggingBetaOptions), "text". (default "text") (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--machine-id-file string Comma-separated list of files to check for machine-id. Use the first one that exists. (default "/etc/machine-id,/var/lib/dbus/machine-id") (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--make-iptables-util-chains If true, kubelet will ensure iptables utility rules are present on host. (default true) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--manifest-url string URL for accessing additional Pod specifications to run (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--manifest-url-header colonSeparatedMultimapStringString Comma-separated list of HTTP headers to use when accessing the url provided to --manifest-url. Multiple headers with the same name will be added in the same order provided. This flag can be repeatedly invoked. For example: --manifest-url-header 'a:hello,b:again,c:world' --manifest-url-header 'b:beautiful' (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--master-service-namespace string The namespace from which the kubernetes master services should be injected into pods (default "default") (DEPRECATED: This flag will be removed in a future version.)
--max-open-files int Number of files that can be opened by Kubelet process. (default 1000000) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--max-pods int32 Number of Pods that can run on this Kubelet. (default 110) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--maximum-dead-containers int32 Maximum number of old instances of containers to retain globally. Each container takes up some disk space. To disable, set to a negative number. (default -1) (DEPRECATED: Use --eviction-hard or --eviction-soft instead. Will be removed in a future version.)
--maximum-dead-containers-per-container int32 Maximum number of old instances to retain per container. Each container takes up some disk space. (default 1) (DEPRECATED: Use --eviction-hard or --eviction-soft instead. Will be removed in a future version.)
--memory-manager-policy string Memory Manager policy to use. Possible values: 'None', 'Static'. (default "None") (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--minimum-container-ttl-duration duration Minimum age for a finished container before it is garbage collected. Examples: '300ms', '10s' or '2h45m' (DEPRECATED: Use --eviction-hard or --eviction-soft instead. Will be removed in a future version.)
--minimum-image-ttl-duration duration Minimum age for an unused image before it is garbage collected. Examples: '300ms', '10s' or '2h45m'. (default 2m0s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--node-ip string IP address (or comma-separated dual-stack IP addresses) of the node. If unset, kubelet will use the node's default IPv4 address, if any, or its default IPv6 address if it has no IPv4 addresses. You can pass '::' to make it prefer the default IPv6 address rather than the default IPv4 address.
--node-labels mapStringString <Warning: Alpha feature> Labels to add when registering the node in the cluster. Labels must be key=value pairs separated by ','. Labels in the 'kubernetes.io' namespace must begin with an allowed prefix (kubelet.kubernetes.io, node.kubernetes.io) or be in the specifically allowed set (beta.kubernetes.io/arch, beta.kubernetes.io/instance-type, beta.kubernetes.io/os, failure-domain.beta.kubernetes.io/region, failure-domain.beta.kubernetes.io/zone, kubernetes.io/arch, kubernetes.io/hostname, kubernetes.io/os, node.kubernetes.io/instance-type, topology.kubernetes.io/region, topology.kubernetes.io/zone)
--node-status-max-images int32 The maximum number of images to report in Node.Status.Images. If -1 is specified, no cap will be applied. (default 50) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--node-status-update-frequency duration Specifies how often kubelet posts node status to master. Note: be cautious when changing the constant, it must work with nodeMonitorGracePeriod in nodecontroller. (default 10s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--oom-score-adj int32 The oom-score-adj value for kubelet process. Values must be within the range [-1000, 1000] (default -999) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--pod-cidr string The CIDR to use for pod IP addresses, only used in standalone mode. In cluster mode, this is obtained from the master. For IPv6, the maximum number of IP's allocated is 65536 (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--pod-infra-container-image string Specified image will not be pruned by the image garbage collector. CRI implementations have their own configuration to set this image. (default "registry.k8s.io/pause:3.9") (DEPRECATED: will be removed in 1.27. Image garbage collector will get sandbox image information from CRI.)
--pod-manifest-path string Path to the directory containing static pod files to run, or the path to a single static pod file. Files starting with dots will be ignored. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--pod-max-pids int Set the maximum number of processes per pod. If -1, the kubelet defaults to the node allocatable pid capacity. (default -1) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--pods-per-core int32 Number of Pods per core that can run on this Kubelet. The total number of Pods on this Kubelet cannot exceed max-pods, so max-pods will be used if this calculation results in a larger number of Pods allowed on the Kubelet. A value of 0 disables this limit. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--port int32 The port for the Kubelet to serve on. (default 10250) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--protect-kernel-defaults Default kubelet behaviour for kernel tuning. If set, kubelet errors if any of kernel tunables is different than kubelet defaults. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--provider-id string Unique identifier for identifying the node in a machine database, i.e cloudprovider (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--qos-reserved mapStringString <Warning: Alpha feature> A set of ResourceName=Percentage (e.g. memory=50%) pairs that describe how pod resource requests are reserved at the QoS level. Currently only memory is supported. Requires the QOSReserved feature gate to be enabled. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--read-only-port int32 The read-only port for the Kubelet to serve on with no authentication/authorization (set to 0 to disable) (default 10255) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--register-node Register the node with the apiserver. If --kubeconfig is not provided, this flag is irrelevant, as the Kubelet won't have an apiserver to register with. (default true) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--register-schedulable Register the node as schedulable. Won't have any effect if register-node is false. (default true) (DEPRECATED: will be removed in a future version)
--register-with-taints []v1.Taint Register the node with the given list of taints (comma separated "<key>=<value>:<effect>"). No-op if register-node is false. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--registry-burst int32 Maximum size of a bursty pulls, temporarily allows pulls to burst to this number, while still not exceeding registry-qps. Only used if --registry-qps > 0 (default 10) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--registry-qps int32 If > 0, limit registry pull QPS to this value. If 0, unlimited. (default 5) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--reserved-cpus string A comma-separated list of CPUs or CPU ranges that are reserved for system and kubernetes usage. This specific list will supersede cpu counts in --system-reserved and --kube-reserved. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--reserved-memory reserved-memory A comma separated list of memory reservations for NUMA nodes. (e.g. --reserved-memory 0:memory=1Gi,hugepages-1M=2Gi --reserved-memory 1:memory=2Gi). The total sum for each memory type should be equal to the sum of kube-reserved, system-reserved and eviction-threshold. See https://kubernetes.io/docs/tasks/administer-cluster/memory-manager/#reserved-memory-flag for more details. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--resolv-conf string Resolver configuration file used as the basis for the container DNS resolution configuration. (default "/etc/resolv.conf") (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--root-dir string Directory path for managing kubelet files (volume mounts,etc). (default "/var/lib/kubelet")
--rotate-certificates <Warning: Beta feature> Auto rotate the kubelet client certificates by requesting new certificates from the kube-apiserver when the certificate expiration approaches. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--rotate-server-certificates Auto-request and rotate the kubelet serving certificates by requesting new certificates from the kube-apiserver when the certificate expiration approaches. Requires the RotateKubeletServerCertificate feature gate to be enabled, and approval of the submitted CertificateSigningRequest objects. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--runonce If true, exit after spawning pods from static pod files or remote urls. Exclusive with --enable-server (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--runtime-cgroups string Optional absolute name of cgroups to create and run the runtime in.
--runtime-request-timeout duration Timeout of all runtime requests except long running request - pull, logs, exec and attach. When timeout exceeded, kubelet will cancel the request, throw out an error and retry later. (default 2m0s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--seccomp-default RuntimeDefault <Warning: Beta feature> Enable the use of RuntimeDefault as the default seccomp profile for all workloads. The SeccompDefault feature gate must be enabled to allow this flag, which is disabled per default.
--serialize-image-pulls Pull images one at a time. We recommend *not* changing the default value on nodes that run docker daemon with version < 1.9 or an Aufs storage backend. Issue #10959 has more details. (default true) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--storage-driver-buffer-duration duration Writes in the storage driver will be buffered for this duration, and committed to the non memory backends as a single transaction (default 1m0s) (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--storage-driver-db string database name (default "cadvisor") (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--storage-driver-host string database host:port (default "localhost:8086") (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--storage-driver-password string database password (default "root") (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--storage-driver-secure use secure connection with database (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--storage-driver-table string table name (default "stats") (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--storage-driver-user string database username (default "root") (DEPRECATED: This is a cadvisor flag that was mistakenly registered with the Kubelet. Due to legacy concerns, it will follow the standard CLI deprecation timeline before being removed.)
--streaming-connection-idle-timeout duration Maximum time a streaming connection can be idle before the connection is automatically closed. 0 indicates no timeout. Example: '5m'. Note: All connections to the kubelet server have a maximum duration of 4 hours. (default 4h0m0s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--sync-frequency duration Max period between synchronizing running containers and config (default 1m0s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--system-cgroups string Optional absolute name of cgroups in which to place all non-kernel processes that are not already inside a cgroup under '/'. Empty for no container. Rolling back the flag requires a reboot. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--system-reserved mapStringString A set of ResourceName=ResourceQuantity (e.g. cpu=200m,memory=500Mi,ephemeral-storage=1Gi) pairs that describe resources reserved for non-kubernetes components. Currently only cpu, memory and local ephemeral storage for root file system are supported. See https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/ for more detail. [default=none] (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--system-reserved-cgroup string Absolute name of the top level cgroup that is used to manage non-kubernetes components for which compute resources were reserved via '--system-reserved' flag. Ex. '/system-reserved'. [default=''] (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--tls-cert-file string File containing x509 Certificate used for serving HTTPS (with intermediate certs, if any, concatenated after server cert). If --tls-cert-file and --tls-private-key-file are not provided, a self-signed certificate and key are generated for the public address and saved to the directory passed to --cert-dir. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--tls-cipher-suites strings Comma-separated list of cipher suites for the server. If omitted, the default Go cipher suites will be used.
Preferred values: TLS_AES_128_GCM_SHA256, TLS_AES_256_GCM_SHA384, TLS_CHACHA20_POLY1305_SHA256, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305, TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_GCM_SHA256, TLS_RSA_WITH_AES_256_CBC_SHA, TLS_RSA_WITH_AES_256_GCM_SHA384.
Insecure values: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, TLS_ECDHE_RSA_WITH_RC4_128_SHA, TLS_RSA_WITH_3DES_EDE_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA256, TLS_RSA_WITH_RC4_128_SHA. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--tls-min-version string Minimum TLS version supported. Possible values: VersionTLS10, VersionTLS11, VersionTLS12, VersionTLS13 (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--tls-private-key-file string File containing x509 private key matching --tls-cert-file. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--topology-manager-policy string Topology Manager policy to use. Possible values: 'none', 'best-effort', 'restricted', 'single-numa-node'. (default "none") (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--topology-manager-policy-options mapStringString A set of key=value Topology Manager policy options to use, to fine tune their behaviour. If not supplied, keep the default behaviour. (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--topology-manager-scope string Scope to which topology hints applied. Topology Manager collects hints from Hint Providers and applies them to defined scope to ensure the pod admission. Possible values: 'container', 'pod'. (default "container") (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
-v, --v Level number for the log level verbosity
--version version[=true] Print version information and quit
--vmodule pattern=N,... comma-separated list of pattern=N settings for file-filtered logging (only works for text log format)
--volume-plugin-dir string The full path of the directory in which to search for additional third party volume plugins (default "/usr/libexec/kubernetes/kubelet-plugins/volume/exec/") (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)
--volume-stats-agg-period duration Specifies interval for kubelet to calculate and cache the volume disk usage for all pods and volumes. To disable volume calculations, set to a negative number. (default 1m0s) (DEPRECATED: This parameter should be set via the config file specified by the Kubelet's --config flag. See https://kubernetes.io/docs/tasks/administer-cluster/kubelet-config-file/ for more information.)containerd and CNI
- CRI Plugin Config Guide
- Networking and Network Policy
- VXLAN RFC7348
- flannel is a network fabric for containers, designed for Kubernetes
[2157448.101788] daemon.notice: May 15 10:14:51 containerd: time="2023-05-15T10:14:51.446276960Z" level=error msg="failed to load cni during init, please check CRI plugin status before setting up network for pods" error="cni config load failed: no network config found in /etc/cni/net.d: cni plugin not initialized: failed to load cni config"It needs configuration in /etc/cni/net.d. No Void package provides any.
XBPS package cni-plugins contains generic network plugins. Kubelet will require portmap plugin enabled at minimum in /etc/cni/net.d/kube.conflist:
{
"name": "k8s-pod-network",
"cniVersion": "0.4.0",
"plugins": [
{
"type": "portmap",
"capabilities": {"portMappings": true},
"externalSetMarkChain": "KUBE-MARK-MASQ"
}
]
}Kubernetes network proxy
exec kube-proxy --master=http://127.0.0.1:6443Usage: kube-proxy
The Kubernetes network proxy runs on each node. This
reflects services as defined in the Kubernetes API on each node and can do simple
TCP, UDP, and SCTP stream forwarding or round robin TCP, UDP, and SCTP forwarding across a set of backends.
Service cluster IPs and ports are currently found through Docker-links-compatible
environment variables specifying ports opened by the service proxy. There is an optional
addon that provides cluster DNS for these cluster IPs. The user must create a service
with the apiserver API to configure the proxy.
Usage:
kube-proxy [flags]
Flags:
--bind-address ip The IP address for the proxy server to serve on (set to '0.0.0.0' for all IPv4 interfaces and '::' for all IPv6 interfaces). This parameter is ignored if a config file is specified by --config. (default 0.0.0.0)
--bind-address-hard-fail If true kube-proxy will treat failure to bind to a port as fatal and exit
--boot-id-file string Comma-separated list of files to check for boot-id. Use the first one that exists. (default "/proc/sys/kernel/random/boot_id")
--cleanup If true cleanup iptables and ipvs rules and exit.
--cluster-cidr string The CIDR range of pods in the cluster. When configured, traffic sent to a Service cluster IP from outside this range will be masqueraded and traffic sent from pods to an external LoadBalancer IP will be directed to the respective cluster IP instead. For dual-stack clusters, a comma-separated list is accepted with at least one CIDR per IP family (IPv4 and IPv6). This parameter is ignored if a config file is specified by --config.
--config string The path to the configuration file.
--config-sync-period duration How often configuration from the apiserver is refreshed. Must be greater than 0. (default 15m0s)
--conntrack-max-per-core int32 Maximum number of NAT connections to track per CPU core (0 to leave the limit as-is and ignore conntrack-min). (default 32768)
--conntrack-min int32 Minimum number of conntrack entries to allocate, regardless of conntrack-max-per-core (set conntrack-max-per-core=0 to leave the limit as-is). (default 131072)
--conntrack-tcp-timeout-close-wait duration NAT timeout for TCP connections in the CLOSE_WAIT state (default 1h0m0s)
--conntrack-tcp-timeout-established duration Idle timeout for established TCP connections (0 to leave as-is) (default 24h0m0s)
--detect-local-mode LocalMode Mode to use to detect local traffic. This parameter is ignored if a config file is specified by --config.
--feature-gates mapStringBool A set of key=value pairs that describe feature gates for alpha/experimental features. Options are:
APIListChunking=true|false (BETA - default=true)
APIPriorityAndFairness=true|false (BETA - default=true)
APIResponseCompression=true|false (BETA - default=true)
APISelfSubjectReview=true|false (ALPHA - default=false)
APIServerIdentity=true|false (BETA - default=true)
APIServerTracing=true|false (ALPHA - default=false)
AggregatedDiscoveryEndpoint=true|false (ALPHA - default=false)
AllAlpha=true|false (ALPHA - default=false)
AllBeta=true|false (BETA - default=false)
AnyVolumeDataSource=true|false (BETA - default=true)
AppArmor=true|false (BETA - default=true)
CPUManagerPolicyAlphaOptions=true|false (ALPHA - default=false)
CPUManagerPolicyBetaOptions=true|false (BETA - default=true)
CPUManagerPolicyOptions=true|false (BETA - default=true)
CSIMigrationPortworx=true|false (BETA - default=false)
CSIMigrationRBD=true|false (ALPHA - default=false)
CSINodeExpandSecret=true|false (ALPHA - default=false)
CSIVolumeHealth=true|false (ALPHA - default=false)
ComponentSLIs=true|false (ALPHA - default=false)
ContainerCheckpoint=true|false (ALPHA - default=false)
CronJobTimeZone=true|false (BETA - default=true)
CrossNamespaceVolumeDataSource=true|false (ALPHA - default=false)
CustomCPUCFSQuotaPeriod=true|false (ALPHA - default=false)
CustomResourceValidationExpressions=true|false (BETA - default=true)
DisableCloudProviders=true|false (ALPHA - default=false)
DisableKubeletCloudCredentialProviders=true|false (ALPHA - default=false)
DownwardAPIHugePages=true|false (BETA - default=true)
DynamicResourceAllocation=true|false (ALPHA - default=false)
EventedPLEG=true|false (ALPHA - default=false)
ExpandedDNSConfig=true|false (BETA - default=true)
ExperimentalHostUserNamespaceDefaulting=true|false (BETA - default=false)
GRPCContainerProbe=true|false (BETA - default=true)
GracefulNodeShutdown=true|false (BETA - default=true)
GracefulNodeShutdownBasedOnPodPriority=true|false (BETA - default=true)
HPAContainerMetrics=true|false (ALPHA - default=false)
HPAScaleToZero=true|false (ALPHA - default=false)
HonorPVReclaimPolicy=true|false (ALPHA - default=false)
IPTablesOwnershipCleanup=true|false (ALPHA - default=false)
InTreePluginAWSUnregister=true|false (ALPHA - default=false)
InTreePluginAzureDiskUnregister=true|false (ALPHA - default=false)
InTreePluginAzureFileUnregister=true|false (ALPHA - default=false)
InTreePluginGCEUnregister=true|false (ALPHA - default=false)
InTreePluginOpenStackUnregister=true|false (ALPHA - default=false)
InTreePluginPortworxUnregister=true|false (ALPHA - default=false)
InTreePluginRBDUnregister=true|false (ALPHA - default=false)
InTreePluginvSphereUnregister=true|false (ALPHA - default=false)
JobMutableNodeSchedulingDirectives=true|false (BETA - default=true)
JobPodFailurePolicy=true|false (BETA - default=true)
JobReadyPods=true|false (BETA - default=true)
KMSv2=true|false (ALPHA - default=false)
KubeletInUserNamespace=true|false (ALPHA - default=false)
KubeletPodResources=true|false (BETA - default=true)
KubeletPodResourcesGetAllocatable=true|false (BETA - default=true)
KubeletTracing=true|false (ALPHA - default=false)
LegacyServiceAccountTokenTracking=true|false (ALPHA - default=false)
LocalStorageCapacityIsolationFSQuotaMonitoring=true|false (ALPHA - default=false)
LogarithmicScaleDown=true|false (BETA - default=true)
MatchLabelKeysInPodTopologySpread=true|false (ALPHA - default=false)
MaxUnavailableStatefulSet=true|false (ALPHA - default=false)
MemoryManager=true|false (BETA - default=true)
MemoryQoS=true|false (ALPHA - default=false)
MinDomainsInPodTopologySpread=true|false (BETA - default=false)
MinimizeIPTablesRestore=true|false (ALPHA - default=false)
MultiCIDRRangeAllocator=true|false (ALPHA - default=false)
NetworkPolicyStatus=true|false (ALPHA - default=false)
NodeInclusionPolicyInPodTopologySpread=true|false (BETA - default=true)
NodeOutOfServiceVolumeDetach=true|false (BETA - default=true)
NodeSwap=true|false (ALPHA - default=false)
OpenAPIEnums=true|false (BETA - default=true)
OpenAPIV3=true|false (BETA - default=true)
PDBUnhealthyPodEvictionPolicy=true|false (ALPHA - default=false)
PodAndContainerStatsFromCRI=true|false (ALPHA - default=false)
PodDeletionCost=true|false (BETA - default=true)
PodDisruptionConditions=true|false (BETA - default=true)
PodHasNetworkCondition=true|false (ALPHA - default=false)
PodSchedulingReadiness=true|false (ALPHA - default=false)
ProbeTerminationGracePeriod=true|false (BETA - default=true)
ProcMountType=true|false (ALPHA - default=false)
ProxyTerminatingEndpoints=true|false (BETA - default=true)
QOSReserved=true|false (ALPHA - default=false)
ReadWriteOncePod=true|false (ALPHA - default=false)
RecoverVolumeExpansionFailure=true|false (ALPHA - default=false)
RemainingItemCount=true|false (BETA - default=true)
RetroactiveDefaultStorageClass=true|false (BETA - default=true)
RotateKubeletServerCertificate=true|false (BETA - default=true)
SELinuxMountReadWriteOncePod=true|false (ALPHA - default=false)
SeccompDefault=true|false (BETA - default=true)
ServerSideFieldValidation=true|false (BETA - default=true)
SizeMemoryBackedVolumes=true|false (BETA - default=true)
StatefulSetAutoDeletePVC=true|false (ALPHA - default=false)
StatefulSetStartOrdinal=true|false (ALPHA - default=false)
StorageVersionAPI=true|false (ALPHA - default=false)
StorageVersionHash=true|false (BETA - default=true)
TopologyAwareHints=true|false (BETA - default=true)
TopologyManager=true|false (BETA - default=true)
TopologyManagerPolicyAlphaOptions=true|false (ALPHA - default=false)
TopologyManagerPolicyBetaOptions=true|false (BETA - default=false)
TopologyManagerPolicyOptions=true|false (ALPHA - default=false)
UserNamespacesStatelessPodsSupport=true|false (ALPHA - default=false)
ValidatingAdmissionPolicy=true|false (ALPHA - default=false)
VolumeCapacityPriority=true|false (ALPHA - default=false)
WinDSR=true|false (ALPHA - default=false)
WinOverlay=true|false (BETA - default=true)
WindowsHostNetwork=true|false (ALPHA - default=true)
This parameter is ignored if a config file is specified by --config.
--healthz-bind-address ipport The IP address with port for the health check server to serve on (set to '0.0.0.0:10256' for all IPv4 interfaces and '[::]:10256' for all IPv6 interfaces). Set empty to disable. This parameter is ignored if a config file is specified by --config. (default 0.0.0.0:10256)
-h, --help help for kube-proxy
--hostname-override string If non-empty, will use this string as identification instead of the actual hostname.
--iptables-localhost-nodeports If false Kube-proxy will disable the legacy behavior of allowing NodePort services to be accessed via localhost, This only applies to iptables mode and ipv4. (default true)
--iptables-masquerade-bit int32 If using the pure iptables proxy, the bit of the fwmark space to mark packets requiring SNAT with. Must be within the range [0, 31]. (default 14)
--iptables-min-sync-period duration The minimum interval of how often the iptables rules can be refreshed as endpoints and services change (e.g. '5s', '1m', '2h22m'). (default 1s)
--iptables-sync-period duration The maximum interval of how often iptables rules are refreshed (e.g. '5s', '1m', '2h22m'). Must be greater than 0. (default 30s)
--ipvs-exclude-cidrs strings A comma-separated list of CIDR's which the ipvs proxier should not touch when cleaning up IPVS rules.
--ipvs-min-sync-period duration The minimum interval of how often the ipvs rules can be refreshed as endpoints and services change (e.g. '5s', '1m', '2h22m').
--ipvs-scheduler string The ipvs scheduler type when proxy mode is ipvs
--ipvs-strict-arp Enable strict ARP by setting arp_ignore to 1 and arp_announce to 2
--ipvs-sync-period duration The maximum interval of how often ipvs rules are refreshed (e.g. '5s', '1m', '2h22m'). Must be greater than 0. (default 30s)
--ipvs-tcp-timeout duration The timeout for idle IPVS TCP connections, 0 to leave as-is. (e.g. '5s', '1m', '2h22m').
--ipvs-tcpfin-timeout duration The timeout for IPVS TCP connections after receiving a FIN packet, 0 to leave as-is. (e.g. '5s', '1m', '2h22m').
--ipvs-udp-timeout duration The timeout for IPVS UDP packets, 0 to leave as-is. (e.g. '5s', '1m', '2h22m').
--kube-api-burst int32 Burst to use while talking with kubernetes apiserver (default 10)
--kube-api-content-type string Content type of requests sent to apiserver. (default "application/vnd.kubernetes.protobuf")
--kube-api-qps float32 QPS to use while talking with kubernetes apiserver (default 5)
--kubeconfig string Path to kubeconfig file with authorization information (the master location can be overridden by the master flag).
--log-flush-frequency duration Maximum number of seconds between log flushes (default 5s)
--machine-id-file string Comma-separated list of files to check for machine-id. Use the first one that exists. (default "/etc/machine-id,/var/lib/dbus/machine-id")
--masquerade-all If using the pure iptables proxy, SNAT all traffic sent via Service cluster IPs (this not commonly needed)
--master string The address of the Kubernetes API server (overrides any value in kubeconfig)
--metrics-bind-address ipport The IP address with port for the metrics server to serve on (set to '0.0.0.0:10249' for all IPv4 interfaces and '[::]:10249' for all IPv6 interfaces). Set empty to disable. This parameter is ignored if a config file is specified by --config. (default 127.0.0.1:10249)
--nodeport-addresses strings A string slice of values which specify the addresses to use for NodePorts. Values may be valid IP blocks (e.g. 1.2.3.0/24, 1.2.3.4/32). The default empty string slice ([]) means to use all local addresses. This parameter is ignored if a config file is specified by --config.
--oom-score-adj int32 The oom-score-adj value for kube-proxy process. Values must be within the range [-1000, 1000]. This parameter is ignored if a config file is specified by --config. (default -999)
--pod-bridge-interface string A bridge interface name in the cluster. Kube-proxy considers traffic as local if originating from an interface which matches the value. This argument should be set if DetectLocalMode is set to BridgeInterface.
--pod-interface-name-prefix string An interface prefix in the cluster. Kube-proxy considers traffic as local if originating from interfaces that match the given prefix. This argument should be set if DetectLocalMode is set to InterfaceNamePrefix.
--profiling If true enables profiling via web interface on /debug/pprof handler. This parameter is ignored if a config file is specified by --config.
--proxy-mode ProxyMode Which proxy mode to use: on Linux this can be 'iptables' (default) or 'ipvs'. On Windows the only supported value is 'kernelspace'.This parameter is ignored if a config file is specified by --config.
--proxy-port-range port-range Range of host ports (beginPort-endPort, single port or beginPort+offset, inclusive) that may be consumed in order to proxy service traffic. If (unspecified, 0, or 0-0) then ports will be randomly chosen.
--show-hidden-metrics-for-version string The previous version for which you want to show hidden metrics. Only the previous minor version is meaningful, other values will not be allowed. The format is <major>.<minor>, e.g.: '1.16'. The purpose of this format is make sure you have the opportunity to notice if the next release hides additional metrics, rather than being surprised when they are permanently removed in the release after that. This parameter is ignored if a config file is specified by --config.
-v, --v Level number for the log level verbosity
--version version[=true] Print version information and quit
--vmodule moduleSpec comma-separated list of pattern=N settings for file-filtered logging (only works for the default text log format)
--write-config-to string If set, write the default configuration values to this file and exit.Kubernetes
Automation
Kubernetes
Usage
kubectrl
Fish shell completion
kubectl completion fish > /usr/share/fish/vendor_completions.d/kubectl.fish
source /usr/share/fish/vendor_completions.d/kubectl.fishFlags
kubectl __complete -
--as Username to impersonate for the operation. User could be a regular user or a service account in a namespace.
--as-group Group to impersonate for the operation, this flag can be repeated to specify multiple groups.
--as-uid UID to impersonate for the operation.
--cache-dir Default cache directory
--certificate-authority Path to a cert file for the certificate authority
--client-certificate Path to a client certificate file for TLS
--client-key Path to a client key file for TLS
--cluster The name of the kubeconfig cluster to use
--context The name of the kubeconfig context to use
--disable-compression If true, opt-out of response compression for all requests to the server
--help help for kubectl
-h help for kubectl
--insecure-skip-tls-verify If true, the server's certificate will not be checked for validity. This will make your HTTPS connections insecure
--kubeconfig Path to the kubeconfig file to use for CLI requests.
--log-flush-frequency Maximum number of seconds between log flushes
--match-server-version Require server version to match client version
--namespace If present, the namespace scope for this CLI request
-n If present, the namespace scope for this CLI request
--password Password for basic authentication to the API server
--profile Name of profile to capture. One of (none|cpu|heap|goroutine|threadcreate|block|mutex)
--profile-output Name of the file to write the profile to
--request-timeout The length of time to wait before giving up on a single server request. Non-zero values should contain a corresponding time unit (e.g. 1s, 2m, 3h). A value of zero means don't timeout requests.
--server The address and port of the Kubernetes API server
-s The address and port of the Kubernetes API server
--tls-server-name Server name to use for server certificate validation. If it is not provided, the hostname used to contact the server is used
--token Bearer token for authentication to the API server
--user The name of the kubeconfig user to use
--username Username for basic authentication to the API server
--v number for the log level verbosity
-v number for the log level verbosity
--vmodule comma-separated list of pattern=N settings for file-filtered logging (only works for the default text log format)
--warnings-as-errors Treat warnings received from the server as errors and exit with a non-zero exit code
:4Server and certs
kubectl --server https://kube-m0:6443/ --certificate-authority /etc/kubernetes/pki/ca.crt get nodesAuthentication with token
Get token (as root)
kubeadm token createUse token
kubectl --server https://kube-m0:6443/ --certificate-authority /etc/kubernetes/pki/ca.crt --token <token> cluster-info dumpAuthentication with certificate
Requesting certificate signing
mksignreq
#!/bin/sh
USR="$1"
CSR=`cat "certs/$USR.csr" | base64 -w 0`
cat <<EOF
apiVersion: certificates.k8s.io/v1
kind: CertificateSigningRequest
metadata:
name: $USR
spec:
request: $CSR
signerName: kubernetes.io/kube-apiserver-client
expirationSeconds: 2147483647 # max
usages:
- client auth
EOF./mksignreq hxd | kubectl --server https://kube-m0:6443/ --certificate-authority /etc/kubernetes/pki/ca.crt --token $TOKEN apply -f -
kubectl --server https://kube-m0:6443/ --certificate-authority /etc/kubernetes/pki/ca.crt --token $TOKEN certificate approve hxdGet the cert (requires kube-kontroller-manager running as it is responsible for signing):
kubectl --server https://kube-m0:6443/ --certificate-authority /etc/kubernetes/pki/ca.crt
--token $TOKEN get csr hxd -o jsonpath='{.status.certificate}' | base64 -d > certs/hxd.crtUse certificate
kubectl --server https://kube-m0:6443/ --certificate-authority /etc/kubernetes/pki/ca.crt
--client-key certs/hxd.key --client-certificate certs/hxd.crt cluster-info dumpGenerate configuration
kubectl config set-cluster kubernetes --server https://kube-m0:6443/ --certificate-author
ity /etc/kubernetes/pki/ca.crt
kubectl config set-credentials hxd --client-key certs/hxd.key --client-certificate certs/hxd.crt
kubectl config set-context hxd@kubernetes --cluster=kubernetes --user=hxd
kubectl config set current-context hxd@kubernetesThis should generate file .kube/config:
apiVersion: v1
clusters:
- cluster:
certificate-authority: /etc/kubernetes/pki/ca.crt
server: https://kube-m0:6443/
name: kubernetes
contexts:
- context:
cluster: kubernetes
user: hxd
name: hxd@kubernetes
current-context: hxd@kubernetes
kind: Config
preferences: {}
users:
- name: hxd
user:
client-certificate: /home/hxd/certs/hxd.crt
client-key: /home/hxd/certs/hxd.keyTerraform
provider "kubernetes" {
config_path = "~/.kube/config"
}
resource "kubernetes_namespace" "example" {
metadata {
name = "my-first-namespace"
}
}terraform init
terraform plan
terraform applyProxMox
Good VM management OS with some anti-features.
Getting rid of subscription popup
You do not have a valid subscription for this server
cd /usr/share/javascript/proxmox-widget-toolkit
cp proxmoxlib.js proxmoxlib.js.bacOpen proxmoxlib.js with vi and find checked_command method.
Put orig_cmd() in the success method after let res = response.result; and comment out the entire if/else expression.
It should looks something like that:
checked_command: function(orig_cmd) {
Proxmox.Utils.API2Request(
{
url: '/nodes/localhost/subscription',
method: 'GET',
failure: function(response, opts) {
Ext.Msg.alert(gettext('Error'), response.htmlStatus);
},
success: function(response, opts) {
let res = response.result;
orig_cmd();
/*
if (res === null || res === undefined || !res || res
.data.status.toLowerCase() !== 'active') {
Ext.Msg.show({
title: gettext('No valid subscription'),
icon: Ext.Msg.WARNING,
message: Proxmox.Utils.getNoSubKeyHtml(res.data.url),
buttons: Ext.Msg.OK,
callback: function(btn) {
if (btn !== 'ok') {
return;
}
orig_cmd();
},
});
} else {
orig_cmd();
}
*/
},
},
);
},Save and reload the page with ctrl-R.
You should not see the popup any more.
Connect via SPICE
xi virt-viewer
remote-viewer pve-spice.vvYunoHost
Add domain
yunohost.lan
- Add domain for
yunohost.lanCNAME in PiHole: https://justine.mgmt/admin/dns_records.php - Add domain to YH: https://yunohost.lan/yunohost/admin/#/domains/add
-
I want to add a subdomain of an already added domain
- Put FQDN
-
- Set up cert
ssh root@yunohost.lan cd /etc/yunohost/certs cp -av yunohost.lan/*.pem <fqdn>/
JitsiMeet
See also: https://blog.hexadust.net/fix-jitsimeet-in-yunohost-stops-working
New public or private IP
Can edit configuration but it is overwritten on re-install using auto-detected pubic IP.
vi /etc/jitsi/videobridge/sip-communicator.properties
# Configure IPs
org.ice4j.ice.harvest.NAT_HARVESTER_LOCAL_ADDRESS=192.168.50.138
org.ice4j.ice.harvest.NAT_HARVESTER_PUBLIC_ADDRESS=57.128.183.232
# Restart videobridge
systemctl restart jitsi-videobridge.serviceNew private IP (migration to another YounoHost VM)
Change of host for Jitsi
server-gw and www changes
diff
diff --git a/server-gw/net b/server-gw/net
index 0be4677..85f3584 100755
--- a/server-gw/net
+++ b/server-gw/net
@@ -30,8 +30,9 @@ mascot-config "DHCP server setup on eth2 (Sandbox VM vnet)" |
echo 'iptables -t nat -A POSTROUTING -o vps -j MASQUERADE'
echo 'iptables -t nat -A PREROUTING -i vps -p tcp --dport 443 -j DNAT --to-destination 192.168.50.159:443'
echo 'iptables -t nat -A PREROUTING -i vps -p tcp --dport 80 -j DNAT --to-destination 192.168.50.159:80'
- echo 'iptables -t nat -A PREROUTING -i vps -p tcp --dport 4443 -j DNAT --to-destination 192.168.50.138:4443'
- echo 'iptables -t nat -A PREROUTING -i vps -p udp --dport 10000 -j DNAT --to-destination 192.168.50.138:10000'
+ # Forward to YounoHost running Jitsi for videobridge inbound
+ echo 'iptables -t nat -A PREROUTING -i vps -p tcp --dport 4443 -j DNAT --to-destination 192.168.50.137:4443'
+ echo 'iptables -t nat -A PREROUTING -i vps -p udp --dport 10000 -j DNAT --to-destination 192.168.50.137:10000'
# Minecraft
# vps: iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 25565 -j DNAT --to-destination 172.17.100.2:25565
echo 'iptables -t nat -A PREROUTING -i vps -p tcp --dport 25565 -j DNAT --to-destination 192.168.50.152:25565'
diff --git a/www/caddy b/www/caddy
index 1b33140..d9d5a29 100755
--- a/www/caddy
+++ b/www/caddy
@@ -47,7 +47,7 @@ mascot-config "Caddy web proxy" |
echo ' }'
echo '}'
echo ''
- echo 'hexadust.net wiki.hexadust.net blog.hexadust.net kiwix.hexadust.net {'
+ echo 'hexadust.net wiki.hexadust.net blog.hexadust.net kiwix.hexadust.net video.hexadust.net {'
echo ' @wasm {'
echo ' path_regexp wasm .*\\.wasm$'
echo ' }'
@@ -65,24 +65,24 @@ mascot-config "Caddy web proxy" |
echo ' }'
echo ' }'
echo '}'
- echo 'video.hexadust.net {'
- echo ' @wasm {'
- echo ' path_regexp wasm .*\\.wasm$'
- echo ' }'
- echo ' header @wasm -Content-Type'
- echo ' header @wasm Content-Type "application/wasm"'
+ # echo 'video.hexadust.net {'
+ # echo ' @wasm {'
+ # echo ' path_regexp wasm .*\\.wasm$'
+ # echo ' }'
+ # echo ' header @wasm -Content-Type'
+ # echo ' header @wasm Content-Type "application/wasm"'
#echo ''
#echo ' log {'
#echo ' output file /tmp/caddy.log'
#echo ' }'
- echo ''
- echo ' reverse_proxy https://192.168.50.138 {'
- echo ' transport http {'
- echo ' tls'
- echo ' tls_insecure_skip_verify'
- echo ' }'
- echo ' }'
- echo '}'
+ # echo ''
+ # echo ' reverse_proxy https://192.168.50.138 {'
+ # echo ' transport http {'
+ # echo ' tls'
+ # echo ' tls_insecure_skip_verify'
+ # echo ' }'
+ # echo ' }'
+ # echo '}'
end | psub) |
mascot-config-dir /var/www present |
Caroline
Set up forwarding rules (for internal client shortcut) in Firewall -> Port forwarding:
uci set firewall.cfg1f3837.dest_ip='192.168.50.137'
uci set firewall.cfg203837.dest_ip='192.168.50.137'
uci set firewall.cfg213837.dest_ip='192.168.50.137'
uci set firewall.cfg223837.dest_ip='192.168.50.137'Fix for XMPP not working (reconnecting/reloading site)
systemctl stop metronome
systemctl disable metronome
systemctl restart prosodyLooks like YunoHost uses metronome and it will get re-enabled with updates but Jitsi needs prosody instead. Jitsi would stop metronome on install.
No video/sound for participants
It was working fine, but after reboot/update the participants are there but they have no video/sound and there are no errors in JS console.
Just reinstall.
Reinstall CLI
sudo apt remove metronome
yunohost app remove jitsi
yunohost app install jitsi -a domain=video.hexadust.netInstall testing branch
yunohost app install https://github.com/YunoHost-Apps/jitsi_ynh/tree/testing --debugCustom certs
cd /etc/yunohost/certs
rm nitter.yunohost.lan/*.pem -v
cp -av yunohost.lan/*.pem nitter.yunohost.lan/Adding root CA to YouoHost host OS
Put your cert in PEM format wit .crt extension in /usr/local/share/ca-certificates and run update-ca-certificates.
DNS resolution
/etc/resolv.dnsmasq.conf
nameserver 192.168.0.2Restart dnsmasq.
Homarr
Restore board from backup
Find default.json (or other board) in YH backup file: apps/homarr/backup/var/www/homarr/data/configs/default.json and upload to server.
Put the file in the configs directory:
# Stop Homarr service
systemctl stop homarr.service
# Copy board file to /var/www/homarr/data/configs/
cp default.json /var/www/homarr/data/configs/
# Start Homrarr service
systemctl start homarr.service