In Kubernetes versions before v1.23, a scheduling policy can be used to specify the predicates and priorities process. For example, you can set a scheduling policy by running kube-scheduler --policy-config-file <filename> or kube-scheduler --policy-configmap <ConfigMap>. This scheduling policy is not supported since Kubernetes v1.23. Associated flags policy-config-file, policy-configmap, policy-configmap-namespace and use-legacy-policy-config are also not supported. Instead, use the Scheduler Configuration to achieve similar behavior. What's next Learn about scheduling Learn about kube-scheduler Configuration Read the kube-scheduler configuration reference (v1)

Synopsis Dump cluster information out suitable for debugging and diagnosing cluster problems. By default, dumps everything to stdout. You can optionally specify a directory with --output-directory. If you specify a directory, Kubernetes will build a set of files in that directory. By default, only dumps things in the current namespace and 'kube-system' namespace, but you can switch to a different namespace with the --namespaces flag, or specify --all-namespaces to dump all namespaces.

Mechanisms for accessing metrics at node, volume, pod and container level, as seen by the kubelet.

During kubeadm init, kubeadm uploads the ClusterConfiguration object to your cluster in a ConfigMap called kubeadm-config in the kube-system namespace. This configuration is then read during kubeadm join, kubeadm reset and kubeadm upgrade. You can use kubeadm config print to print the default static configuration that kubeadm uses for kubeadm init and kubeadm join. Note:The output of the command is meant to serve as an example. You must manually edit the output of this command to adapt to your setup.

Production-Grade Container Orchestration

Synopsis Update existing container image(s) of resources. Possible resources include (case insensitive): pod (po), replicationcontroller (rc), deployment (deploy), daemonset (ds), statefulset (sts), cronjob (cj), replicaset (rs) kubectl set image (-f FILENAME | TYPE NAME) CONTAINER_NAME_1=CONTAINER_IMAGE_1 ... CONTAINER_NAME_N=CONTAINER_IMAGE_N Examples # Set a deployment's nginx container image to 'nginx:1.9.1', and its busybox container image to 'busybox' kubectl set image deployment/nginx busybox=busybox nginx=nginx:1.9.1 # Update all deployments' and rc's nginx container's image to 'nginx:1.

Synopsis Create an ExternalName service with the specified name. ExternalName service references to an external DNS address instead of only pods, which will allow application authors to reference services that exist off platform, on other clusters, or locally. kubectl create service externalname NAME --external-name external.name [--dry-run=server|client|none] Examples # Create a new ExternalName service named my-ns kubectl create service externalname my-ns --external-name bar.com 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

This page contains guidelines for Kubernetes documentation. If you have questions about what's allowed, join the #sig-docs channel in Kubernetes Slack and ask! You can register for Kubernetes Slack at https://slack.k8s.io/. For information on creating new content for the Kubernetes docs, follow the style guide. Overview Source for the Kubernetes website, including the docs, resides in the kubernetes/website repository. Located in the kubernetes/website/content/<language_code>/docs folder, the majority of Kubernetes documentation is specific to the Kubernetes project.

An Ingress is an API object that defines rules which allow external access to services in a cluster. An Ingress controller fulfills the rules set in the Ingress. This page shows you how to set up a simple Ingress which routes requests to Service 'web' or 'web2' depending on the HTTP URI. Before you begin This tutorial assumes that you are using minikube to run a local Kubernetes cluster. Visit Install tools to learn how to install minikube.