POD Design - Rolling Updates & Rollbacks in Deployments

Question 1

What happens, when you create a deployment?

Answer 1

• created deployment creates a new rollout
• and a new revision
• When versions are updated a new deployment revision is created

Question 2

What Rollout strategies exiist?

Answer 2

• RollingUpdate (default)
• Recreate

Question 3

How can you check the status of each revision?

Answer 3

kubectl rollout history deployment nginx –revision=1

Question 4

How can we rollback to a specific rollout version?

Answer 4

kubectl rollout undo –to-revision=1