Kubernetes Cookbook - Second Edition

Rollback the update

Kubernetes system records every update for Deployment:

1. We can list all of the revisions with the subcommand rollout:

// check the rollout history$ kubectl rollout history deployment simple-nginxdeployments "simple-nginx"REVISION  CHANGE-CAUSE1         <none>2         kubectl edit deployment simple-nginx --record=true3         kubectl set image deployment simple-nginx simple-nginx=nginx:stable --record=true

You will get three revisions, as in the preceding lines, for the Deployment simple-nginx. For Kubernetes Deployment, each revision has a matched ReplicaSet and represents a stage of running an update command. The first revision is the initial state of simple-nginx. Although there is no command tag for indication, Kubernetes takes its creation ...