Kubernetes Lab 7 - Rolling Updates

Solution

Step 1: Update the deployment to the new version

kubectl set image deployment/jedi-deployment jedi-ws=bitnami/nginx:1.19.0

Step 2: Check the progress of the rolling update

kubectl rollout status deployment/jedi-deployment

In another terminal window, watch the pods:

kubectl get pods -w

Step 3: View the rollout history

Get a list of previous revisions:

kubectl rollout history deployment/jedi-deployment

Step 4: Rollback if needed

If the update fails or you need to rollback, undo the last revision:

kubectl rollout undo deployment/jedi-deployment

Check the status of the rollback:

kubectl rollout status deployment/jedi-deployment

Verify the current image

kubectl describe deployment jedi-deployment | grep Image

Expected output after successful update:

Image: bitnami/nginx:1.19.0