How to Roll Back Kubernetes Deployments (the Right Way)
Sometimes you deploy a change... and something goes wrong. The good news? Kubernetes makes it easy to roll back to a previous version of your Deployment — no panic required!
Here’s how you do it:
1️⃣ Check Deployment History
First, check the revision history for your Deployment:
kubectl rollout history deployment <deployment-name>This shows you a list of revisions — each time you deploy or change your Deployment, Kubernetes creates a new revision.
2️⃣ Roll Back to Previous Revision
If your latest deployment is problematic, simply roll back:
kubectl rollout undo deployment <deployment-name>This reverts to the previous known-good revision.
3️⃣ Roll Back to a Specific Revision
Want to roll back to a specific version (not just the last one)? Use:
kubectl rollout undo deployment <deployment-name> --to-revision=<revision-number>You can find the revision number in the history from step 1.
4️⃣ Monitor Rollback Progress
Once you start the rollback, monitor progress:
kubectl rollout status deployment <deployment-name>Why Use Rollbacks?
Quick recovery from bad releases this happens quite ofte.
No downtime (handled as a rolling update)
No need to reapply old manifests manually we just go back to previous version