Synopsis 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. kube-apiserver [flags] Options --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.

Synopsis Restart a resource. Resource rollout will be restarted. kubectl rollout restart RESOURCE Examples # Restart all deployments in the test-namespace namespace kubectl rollout restart deployment -n test-namespace # Restart a deployment kubectl rollout restart deployment/nginx # Restart a daemon set kubectl rollout restart daemonset/abc # Restart deployments with the app=nginx label kubectl rollout restart deployment --selector=app=nginx Options --allow-missing-template-keys     Default: true If true, ignore any errors in templates when a field or map key is missing in the template.

Production-Grade Container Orchestration

Glossary This glossary is intended to be a comprehensive, standardized list of Kubernetes terminology. It includes te...

This page provides an overview of authentication in Kubernetes, with a focus on authentication to the Kubernetes API. Users in Kubernetes All Kubernetes clusters have two categories of users: service accounts managed by Kubernetes, and normal users. It is assumed that a cluster-independent service manages normal users in the following ways: an administrator distributing private keys a user store like Keystone or Google Accounts a file with a list of usernames and passwords In this regard, Kubernetes does not have objects which represent normal user accounts.

This page shows how to perform a rollback on a DaemonSet. Before you begin You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster. It is recommended to run this tutorial on a cluster with at least two nodes that are not acting as control plane hosts. If you do not already have a cluster, you can create one by using minikube or you can use one of these Kubernetes playgrounds:

Production-Grade Container Orchestration

Production-Grade Container Orchestration

Synopsis Create a pod disruption budget with the specified name, selector, and desired minimum available pods. kubectl create poddisruptionbudget NAME --selector=SELECTOR --min-available=N [--dry-run=server|client|none] Examples # Create a pod disruption budget named my-pdb that will select all pods with the app=rails label # and require at least one of them being available at any point in time kubectl create poddisruptionbudget my-pdb --selector=app=rails --min-available=1 # Create a pod disruption budget named my-pdb that will select all pods with the app=nginx label # and require at least half of the pods selected to be available at any point in time kubectl create pdb my-pdb --selector=app=nginx --min-available=50% Options --allow-missing-template-keys     Default: true If true, ignore any errors in templates when a field or map key is missing in the template.

Synopsis Set the current-context in a kubeconfig file. kubectl config use-context CONTEXT_NAME Examples # Use the context for the minikube cluster kubectl config use-context minikube Options -h, --help help for use-context Parent Options Inherited --as string Username to impersonate for the operation. User could be a regular user or a service account in a namespace. --as-group strings Group to impersonate for the operation, this flag can be repeated to specify multiple groups.