Deployment更新

1.查看镜像

[root@k8s-master01 ~]# kubectl get deploy -oyaml |grep image
                  f:image: {}
                  f:imagePullPolicy: {}
        - image: nginx:1.15.2
          imagePullPolicy: IfNotPresent

2.更改镜像

[root@k8s-master01 ~]# kubectl set image delploy nginx nginx=nginx:1.15.3 --record  ### --record:记录

3.查看状态

[root@k8s-master01 ~]# kubectl get po
NAME                     READY   STATUS              RESTARTS   AGE
nginx-5dfc8689c6-gjnps   0/1     ContainerCreating   0          6s
nginx-66bbc9fdc5-jmgwq   1/1     Running             0          40m
nginx-66bbc9fdc5-rjqpk   1/1     Running             0          15m
# 查看进度
[root@k8s-master01 ~]# kubectl rollout status deploy nginx
Waiting for deployment "nginx" rollout to finish: 1 out of 2 new replicas have been updated...
Waiting for deployment "nginx" rollout to finish: 1 out of 2 new replicas have been updated...
Waiting for deployment "nginx" rollout to finish: 1 out of 2 new replicas have been updated...
Waiting for deployment "nginx" rollout to finish: 1 old replicas are pending termination...
Waiting for deployment "nginx" rollout to finish: 1 old replicas are pending termination...
deployment "nginx" successfully rolled out

# 查看流程
[root@k8s-master01 ~]# kubectl describe deploy nginx
# 查看RS
[root@k8s-master01 ~]# kubectl get po --show-labels
NAME                     READY   STATUS    RESTARTS   AGE   LABELS
nginx-6cdd5dd489-njqjd   1/1     Running   0          10m   app=nginx,pod-template-hash=6cdd5dd489
nginx-6cdd5dd489-pb8qk   1/1     Running   0          10m   app=nginx,pod-template-hash=6cdd5dd489
# 查看状态
[root@k8s-master01 ~]# kubectl get po
NAME                     READY   STATUS        RESTARTS   AGE
nginx-5dfc8689c6-cw87q   1/1     Running       0          60s
nginx-5dfc8689c6-gjnps   1/1     Running       0          2m4s
nginx-66bbc9fdc5-jmgwq   0/1     Terminating   0          42m\   # 我们的副本是2，滚动更新会先1一个running后，会删除一个pod，在起一个。
查看镜像
[root@k8s-master01 ~]# kubectl get po nginx-5dfc8689c6-cw87q -oyaml|grep image
            f:image: {}
            f:imagePullPolicy: {}
  - image: nginx:1.15.3
    imagePullPolicy: IfNotPresent
    image: nginx:1.15.3
    imageID: docker-pullable://nginx@sha256:24a0c4b4a4c0eb97a1aabb8e29f18e917d05abfe1b7a7c07857230879ce7d3d3