This tutorial shows you how to build and deploy a simple (not production ready), multi-tier web application using Kubernetes and Docker. This example consists of the following components: A single-instance Redis to store guestbook entries Multiple web frontend instances Objectives Start up a Redis leader. Start up two Redis followers. Start up the guestbook frontend. Expose and view the Frontend Service. Clean up. Before you begin You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster.

Production-Grade Container Orchestration

Production-Grade Container Orchestration

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.

You can use the Kubernetes command line tool kubectl to interact with the API Server. Using kubectl is straightforward if you are familiar with the Docker command line tool. However, there are a few differences between the Docker commands and the kubectl commands. The following sections show a Docker sub-command and describe the equivalent kubectl command. docker run To run an nginx Deployment and expose the Deployment, see kubectl create deployment.

Synopsis View previous rollout revisions and configurations. kubectl rollout history (TYPE NAME | TYPE/NAME) [flags] Examples # View the rollout history of a deployment kubectl rollout history deployment/abc # View the details of daemonset revision 3 kubectl rollout history daemonset/abc --revision=3 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. Only applies to golang and jsonpath output formats.

FEATURE STATE: Kubernetes v1.25 [stable] You can customize the behavior of the kube-scheduler by writing a configuration file and passing its path as a command line argument. A scheduling Profile allows you to configure the different stages of scheduling in the kube-scheduler. Each stage is exposed in an extension point. Plugins provide scheduling behaviors by implementing one or more of these extension points. You can specify scheduling profiles by running kube-scheduler --config <filename>, using the KubeSchedulerConfiguration v1 struct.

This page shows how to build the Kubernetes component and tool reference pages. Before you begin Start with the Prerequisites section in the Reference Documentation Quickstart guide. Follow the Reference Documentation Quickstart to generate the Kubernetes component and tool reference pages. What's next Generating Reference Documentation Quickstart Generating Reference Documentation for kubectl Commands Generating Reference Documentation for the Kubernetes API Contributing to the Upstream Kubernetes Project for Documentation

Synopsis Show the status of the rollout. By default 'rollout status' will watch the status of the latest rollout until it's done. If you don't want to wait for the rollout to finish then you can use --watch=false. Note that if a new rollout starts in-between, then 'rollout status' will continue watching the latest revision. If you want to pin to a specific revision and abort if it is rolled over by another revision, use --revision=N where N is the revision you need to watch for.

Production-Grade Container Orchestration