Kubernetes Cookbook - Second Edition

Using kubectl set to update the container image

Use the kubectl set command allows us to overwrite the spec.template.spec.containers[].image property that is similar to using the kubectl run command to specify the image file. The following example specifies my-nginx deployment to set the container my-nginx to change the image to nginx version 1.12.0:

$ kubectl set image deployment my-nginx my-nginx=nginx:1.12.0 --recorddeployment.apps "my-nginx" image updated$ kubectl describe deploy my-nginxName:                   my-nginx……Conditions:  Type           Status  Reason  ----           ------  ------  Available      True    MinimumReplicasAvailable  Progressing    True    ReplicaSetUpdatedOldReplicaSets:  my-nginx-54bb7bbcf9 (3/3 replicas created)NewReplicaSet:   my-nginx-77769b7666 (1/1 replicas created) ...