rollback-deployment

Rollback Deployment

Roll back a deployment to a previous revision.

Inputs

Ask for these if not provided:

1. Deployment name (e.g., "my-api")
2. Namespace
3. Target cluster — from the active repo config kubernetes.clusters[] list
4. Target revision — optional, defaults to previous revision

Execution Steps

Step 1: Inspect current state

# Current rollout status
kubectl rollout status deployment/<deployment-name> -n <namespace> --context <context>

# Current replica set
kubectl get replicaset -n <namespace> --context <context> -l app.kubernetes.io/name=<deployment-name>

# Revision history
kubectl rollout history deployment/<deployment-name> -n <namespace> --context <context>

Step 2: Show revision details

If the user hasn't specified a target revision, show the last 5 revisions with their details:

kubectl rollout history deployment/<deployment-name> -n <namespace> --context <context> --revision=<N>

Ask the user which revision to roll back to.

Step 3: Show what will change

# Compare current vs target revision
kubectl rollout history deployment/<deployment-name> -n <namespace> --context <context> --revision=<current>
kubectl rollout history deployment/<deployment-name> -n <namespace> --context <context> --revision=<target>

Present a clear diff of what changes (image tag, env vars, resource limits, etc.).

Step 4: Hand off

Rollback ready!

Execute:
kubectl rollout undo deployment/<deployment-name> -n <namespace> --context <context> --to-revision=<target>

What this will do:
- Roll back <deployment-name> from revision <current> to revision <target>
- [Specific changes: image tag, env vars, etc.]

Verification:
kubectl rollout status deployment/<deployment-name> -n <namespace> --context <context>
kubectl get pods -n <namespace> --context <context> -l app.kubernetes.io/name=<deployment-name>