deploy
Update running deployment container
From CI / CD you might want to update a deployment; you can update any existing deployment by changing the running container. The deployment will then rebuild the whole thing. It could be that repliction controllers aren't cleaned up because of [email protected] the garbage collector isn't enabled by default yet.
$ kubectl set image deployment/<deployment_name> \
<container_name>="<container_name>:<version>"
# example
$ kubectl set image deployment/nginx nginx="nginx:1.9.1"
To prevent caching of a prior image, the imagePullPolicy must be set to
Always:
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: nginx
spec:
replicas: 1
template:
metadata:
labels:
run: nginx
spec:
containers:
- name: nginx
image: nginx:1.9.1
imagePullPolicy: Always
ports:
- containerPort: 8080
If a container with the same image is deployed, a new deployment will not be triggered. To force a new rollout annotations should be updated so that a new rollout is forced.
$ kubectl patch deployment web -p \
"{\"spec\":{\"template\":{\"metadata\":{\"labels\":{\"date\":\"`date +'%s'`\"}}}}}"
Get latest deployment status
$ kubectl rollout status deployment/<deployment_name>
View deployment history
$ kubectl rollout history deployment/<deployment_name>