content large_stringlengths 3 20.5k | url large_stringlengths 53 192 ⌀ | branch large_stringclasses 4
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|---|---|---|---|---|---|
It must match the registered admission plugin name. | | `path` `string` | Path is the path to a configuration file that contains the plugin's configuration | | `configuration` [`k8s.io/apimachinery/pkg/runtime.Unknown`](https://pkg.go.dev/k8s.io/apimachinery/pkg/runtime#Unknown) | Configuration is an embedded configura... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1alpha1.md | main | kubernetes | [
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claim. If groups.claim is set, the prefix must be specified (and can be the empty string). If groups.expression is set, the expression must produce a string or string array value. "", [], and null values are treated as the group mapping not being present. | | `uid` [`ClaimOrExpression`](#apiserver-k8s-io-v1alpha1-Claim... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1alpha1.md | main | kubernetes | [
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the configuration for a single egress selection client. | Field | Description | | --- | --- | | `proxyProtocol` **[Required]** [`ProtocolType`](#apiserver-k8s-io-v1alpha1-ProtocolType) | Protocol is the protocol used to connect from client to the konnectivity server. | | `transport` [`Transport`](#apiserver-k8s-io-v1al... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1alpha1.md | main | kubernetes | [
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using kubernetes service 'oidc' in namespace 'oidc-namespace' and discovery information is available at '/.well-known/openid-configuration'. discoveryURL: "https://oidc.oidc-namespace/.well-known/openid-configuration" certificateAuthority is used to verify the TLS connection and the hostname on the leaf certificate mus... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1alpha1.md | main | kubernetes | [
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`string` | claim is the JWT claim to use. Mutually exclusive with expression. | | `prefix` `string` | prefix is prepended to claim's value to prevent clashes with existing names. prefix needs to be set if claim is set and can be the empty string. Mutually exclusive with expression. | | `expression` `string` | expressio... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1alpha1.md | main | kubernetes | [
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(Eg: /etc/srv/kubernetes/konnectivity-server/konnectivity-server.socket) | ## `UserValidationRule` {#apiserver-k8s-io-v1alpha1-UserValidationRule} \*\*Appears in:\*\* - [JWTAuthenticator](#apiserver-k8s-io-v1alpha1-JWTAuthenticator) UserValidationRule provides the configuration for a single user info validation rule. |... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1alpha1.md | main | kubernetes | [
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This mode is not allowed for kube-apiserver. | | `kubeConfigFile` **[Required]** `string` | Path to KubeConfigFile for connection info Required, if connectionInfo.Type is KubeConfig | ## `WebhookMatchCondition` {#apiserver-k8s-io-v1alpha1-WebhookMatchCondition} \*\*Appears in:\*\* - [WebhookConfiguration](#apiserver-k8... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1alpha1.md | main | kubernetes | [
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## Resource Types - [ImageReview](#imagepolicy-k8s-io-v1alpha1-ImageReview) ## `ImageReview` {#imagepolicy-k8s-io-v1alpha1-ImageReview} ImageReview checks if the set of images in a pod are allowed. | Field | Description | | --- | --- | | `apiVersion` string | `imagepolicy.k8s.io/v1alpha1` | | `kind` string | `ImageRevi... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/imagepolicy.v1alpha1.md | main | kubernetes | [
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Package v1 is the v1 version of the API. ## Resource Types - [AdmissionConfiguration](#apiserver-config-k8s-io-v1-AdmissionConfiguration) - [AuthenticationConfiguration](#apiserver-config-k8s-io-v1-AuthenticationConfiguration) - [AuthorizationConfiguration](#apiserver-config-k8s-io-v1-AuthorizationConfiguration) - [Enc... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1.md | main | kubernetes | [
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configmaps - pandas.awesome.bears.example providers: - aescbc: keys: - name: key1 secret: c2VjcmV0IGlzIHNlY3VyZQ== - resources: - '*.apps' providers: - aescbc: keys: - name: key2 secret: c2VjcmV0IGlzIHNlY3VyZSwgb3IgaXMgaXQ/Cg== - resources: - '*.*' providers: - aescbc: keys: - name: key3 secret: c2VjcmV0IGlzIHNlY3VyZSw... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1.md | main | kubernetes | [
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username represents an option for the username attribute. The claim's value must be a singular string. Same as the --oidc-username-claim and --oidc-username-prefix flags. If username.expression is set, the expression must produce a string value. If username.expression uses 'claims.email', then 'claims.email\_verified' ... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1.md | main | kubernetes | [
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CEL: https://kubernetes.io/docs/reference/using-api/cel/ Mutually exclusive with claim. | ## `ClaimValidationRule` {#apiserver-config-k8s-io-v1-ClaimValidationRule} \*\*Appears in:\*\* - [JWTAuthenticator](#apiserver-config-k8s-io-v1-JWTAuthenticator) ClaimValidationRule provides the configuration for a single claim va... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1.md | main | kubernetes | [
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not used for this network connection. | | `discoveryURL` `string` | discoveryURL, if specified, overrides the URL used to fetch discovery information instead of using "{url}/.well-known/openid-configuration". The exact value specified is used, so "/.well-known/openid-configuration" must be included in discoveryURL if n... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1.md | main | kubernetes | [
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claimMappings points claims of a token to be treated as user attributes. | | `userValidationRules` [`[]UserValidationRule`](#apiserver-config-k8s-io-v1-UserValidationRule) | userValidationRules are rules that are applied to final user before completing authentication. These allow invariants to be applied to incoming id... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1.md | main | kubernetes | [
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| | `resources` **[Required]** `[]string` | resources is a list of kubernetes resources which have to be encrypted. The resource names are derived from `resource` or `resource.group` of the group/version/resource. eg: pandas.awesome.bears.example is a custom resource with 'group': awesome.bears.example, 'resource': pan... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1.md | main | kubernetes | [
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a list of conditions that must be met for a request to be sent to this webhook. An empty list of matchConditions matches all requests. There are a maximum of 64 match conditions allowed. The exact matching logic is (in order): 1. If at least one matchCondition evaluates to FALSE, then the webhook is skipped. 2. If ALL ... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/apiserver-config.v1.md | main | kubernetes | [
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## Resource Types - [Preference](#kubectl-config-k8s-io-v1alpha1-Preference) ## `Preference` {#kubectl-config-k8s-io-v1alpha1-Preference} Preference stores elements of KubeRC configuration file | Field | Description | | --- | --- | | `apiVersion` string | `kubectl.config.k8s.io/v1alpha1` | | `kind` string | `Preference... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kuberc.v1alpha1.md | main | kubernetes | [
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## Overview Package v1beta4 defines the v1beta4 version of the kubeadm configuration file format. This version improves on the v1beta3 format by fixing some minor issues and adding a few new fields. A list of changes since v1beta3: v1.35: * Add `httpEndpoints` field to `ClusterConfiguration.etcd.externalEtcd` that can ... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kubeadm-config.v1beta4.md | main | kubernetes | [
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are also available as command line flags, but only the most common/simple use case are supported with this approach. A kubeadm config file could contain multiple configuration types separated using three dashes (`---`). kubeadm supports the following configuration types: ``` apiVersion: kubeadm.k8s.io/v1beta4 kind: Ini... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kubeadm-config.v1beta4.md | main | kubernetes | [
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deployed in the cluster. If this object is not provided or provided only partially, kubeadm applies defaults. See https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/ or https://pkg.go.dev/k8s.io/kubelet/config/v1beta1#KubeletConfiguration for kubelet official documentation. Here is a fully popula... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kubeadm-config.v1beta4.md | main | kubernetes | [
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in:\*\* - [InitConfiguration](#kubeadm-k8s-io-v1beta3-InitConfiguration) - [InitConfiguration](#kubeadm-k8s-io-v1beta4-InitConfiguration) BootstrapToken describes one bootstrap token, stored as a Secret in the cluster | Field | Description | | --- | --- | | `token` **[Required]** [`BootstrapTokenString`](#BootstrapToke... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kubeadm-config.v1beta4.md | main | kubernetes | [
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sets the container registry to pull images from. If empty, `registry.k8s.io` will be used by default. In case of kubernetes version is a CI build (kubernetes version starts with `ci/`) `gcr.io/k8s-staging-ci-images` will be used as a default for control plane components and for kube-proxy, while `registry.k8s.io` will ... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kubeadm-config.v1beta4.md | main | kubernetes | [
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patches to components deployed by kubeadm during `kubeadm init`. | | `timeouts` [`Timeouts`](#kubeadm-k8s-io-v1beta4-Timeouts) | `timeouts` holds various timeouts that apply to kubeadm commands. | ## `JoinConfiguration` {#kubeadm-k8s-io-v1beta4-JoinConfiguration} JoinConfiguration contains elements describing a particu... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kubeadm-config.v1beta4.md | main | kubernetes | [
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--- | | `apiVersion` string | `kubeadm.k8s.io/v1beta4` | | `kind` string | `UpgradeConfiguration` | | `apply` [`UpgradeApplyConfiguration`](#kubeadm-k8s-io-v1beta4-UpgradeApplyConfiguration) | `apply` holds a list of options that are specific to the `kubeadm upgrade apply` command. | | `diff` [`UpgradeDiffConfiguration... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kubeadm-config.v1beta4.md | main | kubernetes | [
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Duplicate extra arguments are allowed. | | `extraVolumes` [`[]HostPathMount`](#kubeadm-k8s-io-v1beta4-HostPathMount) | `extraVolumes` is an extra set of host volumes, mounted to the control plane component. | | `extraEnvs` [`[]EnvVar`](#kubeadm-k8s-io-v1beta4-EnvVar) | `extraEnvs` is an extra set of environment variabl... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kubeadm-config.v1beta4.md | main | kubernetes | [
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configuration. If not provided, `endpoints` will be used for both gRPC and HTTP traffic. | | `caFile` **[Required]** `string` | `caFile` is an SSL Certificate Authority (CA) file used to secure etcd communication. Required if using a TLS connection. | | `certFile` **[Required]** `string` | `certFile` is an SSL certific... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kubeadm-config.v1beta4.md | main | kubernetes | [
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`extraArgs` **[Required]** [`[]Arg`](#kubeadm-k8s-io-v1beta4-Arg) | `extraArgs` are extra arguments provided to the etcd binary when run inside a static Pod. An argument name in this list is the flag name as it appears on the command line except without leading dash(es). Extra arguments will override existing default a... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kubeadm-config.v1beta4.md | main | kubernetes | [
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kubeadm will default it to "IfNotPresent", or pull the required images if not present on the host. | | `imagePullSerial` `bool` | `imagePullSerial` specifies if image pulling performed by kubeadm must be done serially or in parallel. Default: true | ## `Patches` {#kubeadm-k8s-io-v1beta4-Patches} \*\*Appears in:\*\* - [... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kubeadm-config.v1beta4.md | main | kubernetes | [
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| | `dryRun` `bool` | `dryRun` tells if the dry run mode is enabled, don't apply any change if it is and just output what would be done. | | `etcdUpgrade` `bool` | `etcdUpgrade` instructs kubeadm to execute etcd upgrade during upgrades. Defaults to true. | | `forceUpgrade` `bool` | `forceUpgrade` flag instructs kubeadm... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kubeadm-config.v1beta4.md | main | kubernetes | [
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parallel. Default: true | ## `UpgradePlanConfiguration` {#kubeadm-k8s-io-v1beta4-UpgradePlanConfiguration} \*\*Appears in:\*\* - [UpgradeConfiguration](#kubeadm-k8s-io-v1beta4-UpgradeConfiguration) UpgradePlanConfiguration contains a list of configurable options which are specific to the "kubeadm upgrade plan" command.... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kubeadm-config.v1beta4.md | main | kubernetes | [
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## Resource Types - [Preference](#kubectl-config-k8s-io-v1beta1-Preference) ## `Preference` {#kubectl-config-k8s-io-v1beta1-Preference} Preference stores elements of KubeRC configuration file | Field | Description | | --- | --- | | `apiVersion` string | `kubectl.config.k8s.io/v1beta1` | | `kind` string | `Preference` |... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kuberc.v1beta1.md | main | kubernetes | [
0.021279532462358475,
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For each allowlist item, at least one field must be nonempty. A struct with all empty fields is considered a misconfiguration error. Each field is a criterion for execution. If multiple fields are specified, then the criteria of all specified fields must be met. That is, the result of an individual entry is the logical... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/config-api/kuberc.v1beta1.md | main | kubernetes | [
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0.... | 0.070431 |
{{< feature-state feature\_gate\_name="ComponentSLIs" >}} By default, Kubernetes {{< skew currentVersion >}} publishes Service Level Indicator (SLI) metrics for each Kubernetes component binary. This metric endpoint is exposed on the serving HTTPS port of each component, at the path `/metrics/slis`. The `ComponentSLIs`... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/slis.md | main | kubernetes | [
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{{< feature-state for\_k8s\_version="v1.23" state="alpha" >}} The [kubelet](/docs/reference/command-line-tools-reference/kubelet/) collects pod and container metrics via [cAdvisor](https://github.com/google/cadvisor). As an alpha feature, Kubernetes lets you configure the collection of pod and container metrics via the... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/cri-pod-container-metrics.md | main | kubernetes | [
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{{< feature-state for\_k8s\_version="v1.36" state="beta" >}} Kubernetes core components can expose a suite of \_z-endpoints\_ to make it easier for users to debug their cluster and its components. These endpoints are strictly to be used for human inspection to gain real time debugging information of a component binary.... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/zpages.md | main | kubernetes | [
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the `/flagz` endpoint shows you the command line arguments that were used to start a component. The `/flagz` plain text response from the API server looks something like: ``` kube-apiserver flags Warning: This endpoint is not meant to be machine parseable, has no formatting compatibility guarantees and is for debugging... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/zpages.md | main | kubernetes | [
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The [kubelet](/docs/reference/command-line-tools-reference/kubelet/) gathers metric statistics at the node, volume, pod and container level, and emits this information in the [Summary API](/docs/reference/config-api/kubelet-stats.v1alpha1/). You can send a proxied request to the stats summary API via the Kubernetes API... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/node-metrics.md | main | kubernetes | [
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-0.049187608... | 0.099731 |
## Metrics (v1.36) This page details the metrics that different Kubernetes components export. You can query the metrics endpoint for these components using an HTTP scrape, and fetch the current metrics data in Prometheus format. ### List of Stable Kubernetes Metrics Stable metrics observe strict API contracts and no la... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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* Labels:completion\_moderesult * Components: + kube-controller-manager (/metrics) job\_controller\_job\_sync\_duration\_seconds The time it took to sync a job * Stability Level:STABLE * Type: Histogram * Labels:actioncompletion\_moderesult * Components: + kube-controller-manager (/metrics) job\_controller\_job\_syncs\... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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scheduler\_schedule\_attempts\_total Number of attempts to schedule pods, by the result. 'unschedulable' means a pod could not be scheduled, while 'error' means an internal scheduler problem. * Stability Level:STABLE * Type: Counter * Labels:profileresult * Components: + kube-scheduler (/metrics) scheduler\_scheduling\... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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-... | 0.178952 |
Stability Level:BETA * Type: Counter * Components: + kube-apiserver (/metrics) apiserver\_validation\_declarative\_validation\_panic\_total Number of times declarative validation has panicked during validation. * Stability Level:BETA * Type: Counter * Components: + kube-apiserver (/metrics) apiserver\_watch\_list\_dura... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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being requested. * Stability Level:BETA * Type: Histogram * Labels:name * Components: + cloud-controller-manager (/metrics) + kube-apiserver (/metrics) + kube-controller-manager (/metrics) + kube-proxy (/metrics) + kube-scheduler (/metrics) + kubelet (/metrics) workqueue\_retries\_total Total number of retries handled ... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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0.009083409793674946,
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-0.08579... | 0.163861 |
(/metrics) apiserver\_admission\_match\_condition\_evaluation\_seconds Admission match condition evaluation time in seconds, identified by name and broken out for each kind containing matchConditions (webhook or policy), operation and type (validate or admit). * Stability Level:ALPHA * Type: Histogram * Labels:kindname... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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0.0029697222635149... | 0.22325 |
* Labels:jwt\_issuer\_hashresult * Components: + kube-apiserver (/metrics) apiserver\_authorization\_config\_controller\_last\_config\_info Information about the last applied authorization configuration with hash as label, split by apiserver identity. * Stability Level:ALPHA * Type: Custom * Labels:apiserver\_id\_hashh... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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0.02050682343542576,
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-0... | 0.153801 |
Labels:code * Components: + kube-apiserver (/metrics) apiserver\_delegated\_authn\_request\_total Number of HTTP requests partitioned by status code. * Stability Level:ALPHA * Type: Counter * Labels:code * Components: + kube-apiserver (/metrics) apiserver\_delegated\_authz\_request\_duration\_seconds Request latency in... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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-0.0... | 0.230401 |
Type: Gauge * Components: + kube-apiserver (/metrics) apiserver\_externaljwt\_request\_duration\_seconds Request duration and time for calls to external-jwt-signer * Stability Level:ALPHA * Type: Histogram * Labels:codemethod * Components: + kube-apiserver (/metrics) apiserver\_externaljwt\_sign\_request\_total Total a... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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-... | 0.216585 |
Nominal number of execution seats configured for each priority level * Stability Level:ALPHA * Type: Gauge * Labels:priority\_level * Components: + kube-apiserver (/metrics) * Deprecated Versions:1.30.0 apiserver\_flowcontrol\_request\_dispatch\_no\_accommodation\_total Number of times a dispatch attempt resulted in a ... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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to a timeout, for each group, version, verb, resource, subresource and scope * Stability Level:ALPHA * Type: Counter * Labels:groupresourcescopesubresourceverbversion * Components: + kube-apiserver (/metrics) apiserver\_request\_body\_size\_bytes Apiserver request body size in bytes broken out by resource and verb. * S... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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apiserver\_storage\_events\_received\_total Number of etcd events received split by kind. * Stability Level:ALPHA * Type: Counter * Labels:groupresource * Components: + kube-apiserver (/metrics) apiserver\_storage\_list\_evaluated\_objects\_total Number of objects tested in the course of serving a LIST request from sto... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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... | 0.158137 |
watch clients * Stability Level:ALPHA * Type: Counter * Labels:groupresourceversion * Components: + kube-apiserver (/metrics) apiserver\_webhooks\_x509\_insecure\_sha1\_total Counts the number of requests to servers with insecure SHA1 signatures in their serving certificate OR the number of connection failures due to t... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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-0... | 0.212435 |
* Components: + kube-controller-manager (/metrics) device\_taint\_eviction\_controller\_pod\_deletions\_total Total number of Pods deleted by DeviceTaintEvictionController since its start. * Stability Level:ALPHA * Type: Counter * Components: + kube-controller-manager (/metrics) dra\_grpc\_operations\_duration\_seconds... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
0.010947599075734615,
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-0.05484568327665329,
-0.01684712991118431,
-0.057687... | 0.248302 |
(/metrics) ephemeral\_volume\_controller\_create\_total Number of PersistentVolumeClaim creation requests * Stability Level:ALPHA * Type: Counter * Components: + kube-controller-manager (/metrics) etcd\_bookmark\_counts Number of etcd bookmarks (progress notify events) split by kind. * Stability Level:ALPHA * Type: Gau... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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-0.030843563377857208,
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0.010811388492584229,
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0.001139249303378164... | 0.150683 |
kube-controller-manager (/metrics) + kube-proxy (/metrics) + kube-scheduler (/metrics) + kubelet (/metrics) informer\_queued\_items Number of items currently queued in the FIFO. * Stability Level:ALPHA * Type: Gauge * Labels:groupnameresourceversion * Components: + cloud-controller-manager (/metrics) + kube-apiserver (... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
-0.015553484670817852,
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0.02259044721722603,
0.009176980704069138,
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-0.... | 0.171218 |
Level:ALPHA * Type: Counter * Components: + kube-apiserver (/metrics) * Deprecated Versions:1.27.0 kube\_apiserver\_pod\_logs\_pods\_logs\_insecure\_backend\_total Total number of requests for pods/logs sliced by usage type: enforce\_tls, skip\_tls\_allowed, skip\_tls\_denied * Stability Level:ALPHA * Type: Counter * L... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
0.0007706762989982963,
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0.019448310136795044,
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-... | 0.220398 |
credential provider configuration with hash as label * Stability Level:ALPHA * Type: Custom * Labels:hash * Components: + kubelet (/metrics) kubelet\_credential\_provider\_plugin\_duration Duration of execution in seconds for credential provider plugin * Stability Level:ALPHA * Type: Histogram * Labels:plugin\_name * C... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
-0.014538588933646679,
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0.008872764185070992,
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-0.0... | 0.152675 |
cache usage in percent. * Stability Level:ALPHA * Type: Gauge * Components: + kubelet (/metrics) kubelet\_imagemanager\_ondisk\_pulledrecords Number of ImagePulledRecords stored on disk. * Stability Level:ALPHA * Type: Gauge * Components: + kubelet (/metrics) kubelet\_imagemanager\_ondisk\_pullintents Number of ImagePu... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
0.008318612352013588,
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0.021713564172387123,
0.025445370003581047,
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-0.... | 0.16904 |
Components: + kubelet (/metrics) kubelet\_pod\_infeasible\_resizes\_total Number of infeasible resizes for pods. * Stability Level:ALPHA * Type: Counter * Labels:reason\_detail * Components: + kubelet (/metrics) kubelet\_pod\_pending\_resizes Number of pending resizes for pods. * Stability Level:ALPHA * Type: Gauge * L... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
0.00012846676690969616,
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... | 0.259785 |
(/metrics) kubelet\_restarted\_pods\_total Number of pods that have been restarted because they were deleted and recreated with the same UID while the kubelet was watching them (common for static pods, extremely uncommon for API pods) * Stability Level:ALPHA * Type: Counter * Labels:static * Components: + kubelet (/met... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
0.017933908849954605,
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in bytes of the volume * Stability Level:ALPHA * Type: Custom * Labels:namespacepersistentvolumeclaim * Components: + kubelet (/metrics) kubelet\_volume\_stats\_health\_status\_abnormal Abnormal volume health status. The count is either 1 or 0. 1 indicates the volume is unhealthy, 0 indicates volume is healthy * Stabil... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
0.028425026684999466,
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-0.036... | 0.202438 |
last time proxy rules were successfully synced * Stability Level:ALPHA * Type: Gauge * Labels:ip\_family * Components: + kube-proxy (/metrics) kubeproxy\_sync\_proxy\_rules\_nftables\_cleanup\_failures\_total Cumulative proxy nftables cleanup failures * Stability Level:ALPHA * Type: Counter * Labels:ip\_family * Compon... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
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... | 0.15771 |
* Stability Level:ALPHA * Type: Custom * Components: + kubelet (/metrics/resource) plugin\_manager\_total\_plugins Number of plugins in Plugin Manager * Stability Level:ALPHA * Type: Custom * Labels:socket\_pathstate * Components: + kubelet (/metrics) pod\_gc\_collector\_force\_delete\_pod\_errors\_total Number of erro... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
0.007348830346018076,
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-0... | 0.216426 |
Type: Custom * Labels:allocatedadmin\_accesssource * Components: + kube-controller-manager (/metrics) rest\_client\_dns\_resolution\_duration\_seconds DNS resolver latency in seconds. Broken down by host. * Stability Level:ALPHA * Type: Histogram * Labels:host * Components: + cloud-controller-manager (/metrics) + kube-... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
-0.01483459398150444,
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-0.0630... | 0.210885 |
Type: Gauge * Components: + cloud-controller-manager (/metrics) + kube-apiserver (/metrics) + kube-controller-manager (/metrics) + kube-proxy (/metrics) + kube-scheduler (/metrics) + kubelet (/metrics) rest\_client\_transport\_create\_calls\_total Number of calls to get a new transport, partitioned by the result of the... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
0.0052796476520597935,
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-0.052... | 0.149772 |
(/metrics) scheduler\_podgroup\_schedule\_attempts\_total Number of attempts to schedule pod group, by the result. 'unschedulable' means a pod group could not be scheduled, while 'error' means an internal scheduler problem. * Stability Level:ALPHA * Type: Counter * Labels:profileresult * Components: + kube-scheduler (/... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
0.019189564511179924,
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... | 0.217408 |
* Type: Counter * Components: + kube-apiserver (/metrics) serviceaccount\_valid\_tokens\_total Cumulative valid projected service account tokens used * Stability Level:ALPHA * Type: Counter * Components: + kube-apiserver (/metrics) statefulset\_controller\_stale\_sync\_skips\_total Total number of StatefulSet syncs ski... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
0.0014072591438889503,
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-0.068031... | 0.238728 |
context than the Pod needs. They are not errors yet, but they will become real errors when SELinuxMountReadWriteOncePod feature is expanded to all volume access modes. * Stability Level:ALPHA * Type: Gauge * Labels:access\_modevolume\_plugin * Components: + kubelet (/metrics) volume\_manager\_selinux\_volumes\_admitted... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/metrics.md | main | kubernetes | [
0.039272867143154144,
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... | 0.173755 |
{{< feature-state feature\_gate\_name="KubeletPSI" >}} As a stable feature, Kubernetes lets you configure the kubelet to collect Linux kernel [Pressure Stall Information](https://docs.kernel.org/accounting/psi.html) (PSI) for CPU, memory, and I/O usage. The information is collected at node, pod and container level. Sta... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/understand-psi-metrics.md | main | kubernetes | [
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-0.0620... | 0.169341 |
shows pressure, while `cpu.full` remains at 0.00. This tells us that while some processes were delayed waiting for CPU time, the container as a whole was still making progress. A non-zero full value would indicate that all non-idle tasks were stalled simultaneously, a much bigger problem. Although not as human-readable... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/understand-psi-metrics.md | main | kubernetes | [
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-0.0572488... | 0.211667 |
| contains("memory-pressure-pod"))' ``` \*\*Using the Prometheus metrics endpoint:\*\* Query the `/metrics/cadvisor` endpoint to see the `container\_pressure\_memory\_waiting\_seconds\_total` metric. ```shell # Replace with the name of the node where the pod is running kubectl get --raw "/api/v1/nodes//proxy/metrics/ca... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/understand-psi-metrics.md | main | kubernetes | [
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{{< feature-state feature\_gate\_name="NativeHistograms" >}} Kubernetes components can expose histogram metrics in [Prometheus Native Histogram](https://prometheus.io/docs/specs/native\_histograms/) format, alongside the classic histogram format. Native histograms use exponential bucket boundaries instead of fixed boun... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/native-histograms.md | main | kubernetes | [
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0.... | 0.172961 |
`always\_scrape\_classic\_histograms` | Per-job configuration recommended. Global flag still supported. | | 3.8 | Stable | Per-job configuration (required for fine-grained control) | Global flag only changes default for all jobs. | | 3.9+ | Stable | Per-job `scrape\_native\_histograms` only | Global flag removed. Must ... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/native-histograms.md | main | kubernetes | [
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-0... | 0.10702 |
- Read the [Prometheus Native Histograms documentation](https://prometheus.io/docs/specs/native\_histograms/) for details on the native histogram format and query functions. - See the [Kubernetes metrics reference](/docs/reference/instrumentation/metrics/) for the full list of metrics exposed by Kubernetes components. | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/instrumentation/native-histograms.md | main | kubernetes | [
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{{< caution >}} `kubeadm alpha` provides a preview of a set of features made available for gathering feedback from the community. Please try it out and give us feedback! {{< /caution >}} Currently there are no experimental commands under `kubeadm alpha`. ## {{% heading "whatsnext" %}} \* [kubeadm init](/docs/reference/... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-alpha.md | main | kubernetes | [
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This command initializes a Kubernetes control plane node. {{< include "generated/kubeadm\_init/\_index.md" >}} ### Init workflow {#init-workflow} `kubeadm init` bootstraps a Kubernetes control plane node by executing the following steps: 1. Runs a series of pre-flight checks to validate the system state before making c... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-init.md | main | kubernetes | [
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called `--skip-phases` that can be used to skip certain phases. The flag accepts a list of phase names and the names can be taken from the above ordered list. An example: ```shell sudo kubeadm init phase control-plane all --config=configfile.yaml sudo kubeadm init phase etcd local --config=configfile.yaml # you can now... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-init.md | main | kubernetes | [
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Default | Alpha | Beta | GA | Deprecated :-------|:--------|:------|:-----|:---|:---------- `PublicKeysECDSA` | `false` | 1.19 | - | - | 1.31 `RootlessControlPlane` | `false` | 1.22 | - | - | 1.31 {{< /table >}} Feature gate descriptions: `PublicKeysECDSA` : Can be used to create a cluster that uses ECDSA certificates ... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-init.md | main | kubernetes | [
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-0... | 0.069206 |
on a control plane node to report status 200 on their `/livez` or `/healthz` endpoints. These checks are performed on `https://ADDRESS:PORT/ENDPOINT`. - `PORT` is taken from `--secure-port` of a component. - `ADDRESS` is `--advertise-address` for kube-apiserver and `--bind-address` for the kube-controller-manager and k... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-init.md | main | kubernetes | [
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32byte key that can be specified using `--certificate-key`. The same key can be used to download the certificates when additional control plane nodes are joining, by passing `--control-plane` and `--certificate-key` to `kubeadm join`. The following phase command can be used to re-upload the certificates after expiratio... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-init.md | main | kubernetes | [
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0.11821106821298599,
... | 0.039502 |
Kubernetes cluster to a newer version \* [kubeadm reset](/docs/reference/setup-tools/kubeadm/kubeadm-reset/) to revert any changes made to this host by `kubeadm init` or `kubeadm join` | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-init.md | main | kubernetes | [
0.05979074910283089,
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{{< feature-state for\_k8s\_version="v1.10" state="stable" >}} `kubeadm init` and `kubeadm join` together provide a nice user experience for creating a bare Kubernetes cluster from scratch, that aligns with the best-practices. However, it might not be obvious \_how\_ kubeadm does that. This document provides additional... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/implementation-details.md | main | kubernetes | [
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... | 0.199564 |
the [kubeadm configuration reference](/docs/reference/config-api/kubeadm-config.v1beta4/) page for more details. ## kubeadm init workflow internal design The `kubeadm init` consists of a sequence of atomic work tasks to perform, as described in the `kubeadm init` [internal workflow](/docs/reference/setup-tools/kubeadm/... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/implementation-details.md | main | kubernetes | [
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the following alternative names: - The Kubernetes service's internal clusterIP (the first address in the services CIDR, e.g. `10.96.0.1` if service subnet is `10.96.0.0/12`) - Kubernetes DNS names, e.g. `kubernetes.default.svc.cluster.local` if `--service-dns-domain` flag value is `cluster.local`, plus default DNS name... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/implementation-details.md | main | kubernetes | [
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must remain on control plane nodes and should not be shared with additional users. During `kubeadm init` another kubeconfig file is generated and stored in `/etc/kubernetes/super-admin.conf`. This file includes a certificate with `Subject: O = system:masters, CN = kubernetes-super-admin`. `system:masters` is a superuse... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/implementation-details.md | main | kubernetes | [
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to use for services - If an external etcd server is specified, the `etcd-servers` address and related TLS settings (`etcd-cafile`, `etcd-certfile`, `etcd-keyfile`); if an external etcd server is not provided, a local etcd will be used (via host network) - If a cloud provider is specified, the corresponding `--cloud-pro... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/implementation-details.md | main | kubernetes | [
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the image repository. 1. If you run kubeadm in `--dry-run` mode, the etcd static Pod manifest is written into a temporary folder. 1. You can directly invoke static Pod manifest generation for local etcd, using the [`kubeadm init phase etcd local`](/docs/reference/setup-tools/kubeadm/kubeadm-init-phase/#cmd-phase-etcd) ... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/implementation-details.md | main | kubernetes | [
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permission to `/apis/certificates.k8s.io/certificatesigningrequests/nodeclient`. #### Set up nodes certificate rotation with auto approval Kubeadm ensures that certificate rotation is enabled for nodes, and that a new certificate request for nodes will get its CSR request automatically approved by the csrapprover contr... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/implementation-details.md | main | kubernetes | [
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-0.011... | 0.11735 |
(this is possible because `kubeadm init` is granted access to `cluster-info` users for `system:unauthenticated`) - Then the CA certificate goes through following validation steps: - Basic validation: using the token ID against a JWT signature - Pub key validation: using provided `--discovery-token-ca-cert-hash`. This v... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/implementation-details.md | main | kubernetes | [
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-... | 0.051377 |
upgrade diff This shows what differences would be applied to existing static pod manifests for control plane nodes. A more verbose way to do the same thing is running `kubeadm upgrade apply --dry-run` or `kubeadm upgrade node --dry-run`. ### kubeadm upgrade apply `kubeadm upgrade apply` prepares the cluster for the upg... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/implementation-details.md | main | kubernetes | [
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`/var/lib/kubelet`. - Deletes any files and directories managed by kubeadm in `/var/lib/kubelet` and `/etc/kubernetes`. | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/implementation-details.md | main | kubernetes | [
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`kubeadm upgrade` is a user-friendly command that wraps complex upgrading logic behind one command, with support for both planning an upgrade and actually performing it. ## kubeadm upgrade guidance The steps for performing an upgrade using kubeadm are outlined in [this document](/docs/tasks/administer-cluster/kubeadm/k... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-upgrade.md | main | kubernetes | [
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-0.... | 0.093467 |
`kubeadm init phase` enables you to invoke atomic steps of the bootstrap process. Hence, you can let kubeadm do some of the work and you can fill in the gaps if you wish to apply customization. `kubeadm init phase` is consistent with the [kubeadm init workflow](/docs/reference/setup-tools/kubeadm/kubeadm-init/#init-wor... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-init-phase.md | main | kubernetes | [
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... | 0.085978 |
{#cmd-phase-kubelet-finalize-all} Use the following phase to update settings relevant to the kubelet after TLS bootstrap. You can use the `all` subcommand to run all `kubelet-finalize` phases. {{< tabs name="tab-kubelet-finalize" >}} {{< tab name="kubelet-finalize" include="generated/kubeadm\_init/kubeadm\_init\_phase\... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-init-phase.md | main | kubernetes | [
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-0.02... | 0.002434 |
`kubeadm join phase` enables you to invoke atomic steps of the join process. Hence, you can let kubeadm do some of the work and you can fill in the gaps if you wish to apply customization. `kubeadm join phase` is consistent with the [kubeadm join workflow](/docs/reference/setup-tools/kubeadm/kubeadm-join/#join-workflow... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-join-phase.md | main | kubernetes | [
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... | 0.075411 |
Bootstrap tokens are used for establishing bidirectional trust between a node joining the cluster and a control-plane node, as described in [authenticating with bootstrap tokens](/docs/reference/access-authn-authz/bootstrap-tokens/). `kubeadm init` creates an initial token with a 24-hour TTL. The following commands all... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-token.md | main | kubernetes | [
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0.07271844148635864,
-0.048... | 0.176744 |
`kubeadm reset phase` enables you to invoke atomic steps of the node reset process. Hence, you can let kubeadm do some of the work and you can fill in the gaps if you wish to apply customization. `kubeadm reset phase` is consistent with the [kubeadm reset workflow](/docs/reference/setup-tools/kubeadm/kubeadm-reset/#res... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-reset-phase.md | main | kubernetes | [
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0.02551807276904583,
-... | 0.105432 |
## kubeadm upgrade apply phase {#cmd-apply-phase} Using the phases of `kubeadm upgrade apply`, you can choose to execute the separate steps of the initial upgrade of a control plane node. {{< tabs name="tab-apply-phase" >}} {{< tab name="phase" include="generated/kubeadm\_upgrade/kubeadm\_upgrade\_apply\_phase.md" />}}... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-upgrade-phase.md | main | kubernetes | [
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-0... | -0.008796 |
This command initializes a new Kubernetes node and joins it to the existing cluster. {{< include "generated/kubeadm\_join/\_index.md" >}} ### The join workflow {#join-workflow} `kubeadm join` bootstraps a Kubernetes worker node or a control-plane node and adds it to the cluster. This action consists of the following st... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-join.md | main | kubernetes | [
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-0.... | 0.161163 |
join --discovery-token abcdef.1234567890abcdef --discovery-token-ca-cert-hash sha256:1234..cdef --control-plane 1.2.3.4:6443 ``` You can also call `join` for a control-plane node with `--certificate-key` to copy certificates to this node, if the `kubeadm init` command was called with `--upload-certs`. \*\*Advantages:\*... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-join.md | main | kubernetes | [
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0.10670385509729385,
-... | 0.09529 |
and requirements](/docs/setup/best-practices/certificates/) and [Certificate Management with kubeadm](/docs/tasks/administer-cluster/kubeadm/kubeadm-certs/#external-ca-mode). 1. Copy the resulting `kubelet.conf` to `/etc/kubernetes/kubelet.conf` on the new node. 2. Execute `kubeadm join` with the flag `--ignore-preflig... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-join.md | main | kubernetes | [
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-0.... | 0.039471 |
the latest version it is \*\*recommended\*\* that you migrate using the [kubeadm config migrate](/docs/reference/setup-tools/kubeadm/kubeadm-config/#cmd-config-migrate) command. For more information on the fields and usage of the configuration you can navigate to our [API reference](/docs/reference/config-api/kubeadm-c... | https://github.com/kubernetes/website/blob/main/content/en/docs/reference/setup-tools/kubeadm/kubeadm-join.md | main | kubernetes | [
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0.03157750889658928,
-0.08... | 0.088069 |
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