Is this blue green deploy rollback ok?

Situation

A team proposes a blue-green deployment workflow for a production service.

Environment

GitHub Actions deploying to an internal load-balanced environment.

Select suspicious lines in the terminal to flag them before submitting your verdict.

pending review

name: blue-green-deploy
on:
  workflow_dispatch:
jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: ./scripts/deploy-green.sh ${{ github.sha }}
      - run: |
          for i in {1..12}; do
            curl -sf http://green.internal/health && break
            sleep 5
          done
      - run: ./scripts/promote-green.sh
      - run: ./scripts/drain-blue.sh || ./scripts/rollback-green.sh