Production-Grade Container Orchestration

Package v1beta1 is the v1beta1 version of the external metrics API. Resource Types ExternalMetricValue ExternalMetricValueList ExternalMetricValue Appears in: ExternalMetricValueList ExternalMetricValue is a metric value for external metric A single metric value is identified by metric name and a set of string labels. For one metric there can be multiple values with different sets of labels. FieldDescription apiVersionstringexternal.metrics.k8s.io/v1beta1 kindstringExternalMetricValue metricName [Required] string the name of the metric metricLabels [Required] map[string]string a set of labels that identify a single time series for the metric

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: v1.33: Add an EtcdUpgrade field to UpgradeConfiguration.plan that can be used to control whether the etcd upgrade plan should be displayed. v1.31: Support custom environment variables in control plane components under ClusterConfiguration. Use apiServer.

Note: Dockershim has been removed from the Kubernetes project as of release 1.24. Read the Dockershim Removal FAQ for further details. You need to install a container runtime into each node in the cluster so that Pods can run there. This page outlines what is involved and describes related tasks for setting up nodes. Kubernetes 1.33 requires that you use a runtime that conforms with the Container Runtime Interface (CRI).

This page provides an overview of best practices when it comes to enforcing Pod Security Standards. Using the built-in Pod Security Admission Controller FEATURE STATE: Kubernetes v1.25 [stable] The Pod Security Admission Controller intends to replace the deprecated PodSecurityPolicies. Configure all cluster namespaces Namespaces that lack any configuration at all should be considered significant gaps in your cluster security model. We recommend taking the time to analyze the types of workloads occurring in each namespace, and by referencing the Pod Security Standards, decide on an appropriate level for each of them.

This page explains how to enable a package repository for the desired Kubernetes minor release upon upgrading a cluster. This is only needed for users of the community-owned package repositories hosted at pkgs.k8s.io. Unlike the legacy package repositories, the community-owned package repositories are structured in a way that there's a dedicated package repository for each Kubernetes minor version. Note:This guide only covers a part of the Kubernetes upgrade process. Please see the upgrade guide for more information about upgrading Kubernetes clusters.

The dockershim component of Kubernetes allows the use of Docker as a Kubernetes's container runtime. Kubernetes' built-in dockershim component was removed in release v1.24. This page explains how your cluster could be using Docker as a container runtime, provides details on the role that dockershim plays when in use, and shows steps you can take to check whether any workloads could be affected by dockershim removal. Finding if your app has a dependencies on Docker If you are using Docker for building your application containers, you can still run these containers on any container runtime.

This page assumes that you understand how to contribute to new content and review others' work, and are ready to learn about more ways to contribute. You need to use the Git command line client and other tools for some of these tasks. Propose improvements SIG Docs members can propose improvements. After you've been contributing to the Kubernetes documentation for a while, you may have ideas for improving the Style Guide , the Content Guide, the toolchain used to build the documentation, the website style, the processes for reviewing and merging pull requests, or other aspects of the documentation.

API Priority and Fairness controls the behavior of the Kubernetes API server in an overload situation. You can find more information about it in the API Priority and Fairness documentation. Diagnostics Every HTTP response from an API server with the priority and fairness feature enabled has two extra headers: X-Kubernetes-PF-FlowSchema-UID and X-Kubernetes-PF-PriorityLevel-UID, noting the flow schema that matched the request and the priority level to which it was assigned, respectively.

Jobs represent one-off tasks that run to completion and then stop.