Anlysis

master $ kubectl create deployment nginx-deploy --image=nginx:1.16
deployment.apps/nginx-deploy created
master $ kubectl get deployments.apps
NAME           READY   UP-TO-DATE   AVAILABLE   AGE
nginx-deploy   0/1     1            0           6s
master $ kubectl get deployments.apps
NAME           READY   UP-TO-DATE   AVAILABLE   AGE
nginx-deploy   1/1     1            1           9s
master $ kubectl set image deployment/nginx-deploy nginx=nginx:1.16 --record
deployment.apps/nginx-deploy image updated
master $ kubectl rollout history deployment/nginx-deploy
deployment.apps/nginx-deploy
REVISION  CHANGE-CAUSE
1         kubectl set image deployment/nginx-deploy nginx=nginx:1.16 --record=true
master $ kubectl describe deployments.apps nginx-deploy | grep -i image
                        kubernetes.io/change-cause: kubectl set image deployment/nginx-deploy nginx=nginx:1.16 --record=true
    Image:        nginx:1.16
master $ kubectl set image deployment/nginx-deploy nginx=nginx:1.17 --record
deployment.apps/nginx-deploy image updated
master $ kubectl describe deployments.apps nginx-deploy | grep -i image
                        kubernetes.io/change-cause: kubectl set image deployment/nginx-deploy nginx=nginx:1.17 --record=true
    Image:        nginx:1.17
master $ kubectl rollout history deployment/nginx-deploy
deployment.apps/nginx-deploy
REVISION  CHANGE-CAUSE
1         kubectl set image deployment/nginx-deploy nginx=nginx:1.16 --record=true
2         kubectl set image deployment/nginx-deploy nginx=nginx:1.17 --record=true