$ kubectl set image deployment/nginx-deployment nginx=nginx:1.9.1
deployment "nginx-deployment" image updated
NAME READY STATUS RESTARTS AGE
nginx-deployment-58b94fcb9-8fjm6 0/1 ContainerCreating 0 52s
nginx-deployment-58b94fcb9-qzlwx 0/1 ContainerCreating 0 51s
nginx-deployment-6d8f46cfb7-5f9qm 1/1 Running 0 45m
nginx-deployment-6d8f46cfb7-7xs6z 0/1 Terminating 0 2m
nginx-deployment-6d8f46cfb7-9ppb8 1/1 Running 0 45m
nginx-deployment-6d8f46cfb7-nfmsw 1/1 Running 0 45m