rollback.yml

name: Manual Rollback

on:
  workflow_dispatch:
    inputs:
      revision:
        description: 'Revision to rollback to (leave empty for previous release)'
        required: false
        type: string

env:
  NAMESPACE: backend

jobs:
  rollback:
    runs-on: ubuntu-latest
    environment: prod
    
    steps:
    - name: Set up Kubernetes config
      run: |
        mkdir -p $HOME/.kube
        echo "${{ secrets.KUBE_CONFIG_DATA }}" | base64 -d > $HOME/.kube/config
        chmod 600 $HOME/.kube/config
        
    - name: Install Helm
      uses: azure/setup-helm@v3
      with:
        version: 'latest'
        
    - name: Rollback deployment
      run: |
        if [ -n "${{ github.event.inputs.revision }}" ]; then
          echo "Rolling back to revision ${{ github.event.inputs.revision }}"
          helm rollback slm-server ${{ github.event.inputs.revision }} --namespace ${{ env.NAMESPACE }} --wait --timeout 5m
        else
          echo "Rolling back to previous release"
          helm rollback slm-server --namespace ${{ env.NAMESPACE }} --wait --timeout 5m
        fi
        
    - name: Verify rollback
      run: |
        kubectl rollout status deployment/slm-server -n ${{ env.NAMESPACE }} --timeout=300s
        kubectl get pods -n ${{ env.NAMESPACE }} -l app.kubernetes.io/name=slm-server
        echo "Rollback completed successfully"