The deployment is many use cases and in this page, they’re not described. For the details for those use cases or the concept of deployment, see official page.

kubectl commands

Revisions and rollbacks

1. How to get revision history of deployments.

• To see revision history: kubectl rollout history deployment.v1.apps/[deployment name]. For example:

  kubectl rollout history deployment.v1.apps/test-deployment
  deployment.apps/test-deployment
  REVISION  CHANGE-CAUSE
  135       <none>
  137       <none>
  138       <none>
  139       <none>
  140       <none>
  141       <none>
  142       <none>
  143       <none>
  144       <none>
  145       <none>
  146       <none>
• To see the detail of a revision: kubectl rollout history deployment.v1.apps/[deployment name] --revision [revision number]

  > kubectl rollout history deployment.apps/test-deployment --revision 145
  deployment.apps/test-deployment with revision #145
  Pod Template:
    Labels:       app=test-deployment
          env=prod
          pod-template-hash=c7d84d6fc
    Annotations:  prometheus.io/port: 9100
          prometheus.io/scrape: true
    Containers:
     test-deployment:
      Image:      gcr.io/test-project/test-deployment:tag
      Port:       <none>
      Host Port:  <none>
      Limits:
        cpu:      1
        memory:   256Mi
      Requests:
        cpu:      1
        memory:   256Mi
      Environment:
        DEBUG:    false
      Mounts:     <none>
    Volumes:      <none>

1. How to rollback deployment: kubectl rollout undo deployment [deployment name] (--to-revision [revision number]). Examples:

• Rollback to the previous version.

  > kubectl rollout undo deployment test-deployment
  deployment.extensions/test-deployment rolled back
• Rollback to a specific version.

  > kubectl rollout undo deployment test-deployment --to-revision 2