Docker 建置與推送

Vibe Prompt

「幫我在 GitHub Actions 中加入 Docker build 與 push 到 ghcr.io 的步驟。」

- name: Login to GitHub Container Registry
  uses: docker/login-action@v3
  with:
    registry: ghcr.io
    username: ${{ github.actor }}
    password: ${{ secrets.GITHUB_TOKEN }}

- name: Build and push
  uses: docker/build-push-action@v5
  with:
    context: .
    push: true
    tags: |
      ghcr.io/${{ github.repository }}:latest
      ghcr.io/${{ github.repository }}:${{ github.sha }}

完整 CD Pipeline

name: CD Pipeline

on:
  push:
    branches: [main]

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      
      - name: Setup kubectl
        uses: azure/setup-kubectl@v4
        with:
          version: 'v1.28.3'
      
      - name: Configure K8s
        uses: azure/k8s-set-context@v4
        with:
          kubeconfig: ${{ secrets.KUBECONFIG }}
      
      - name: Deploy
        run: |
          kubectl set image deployment/my-app \
            my-app=ghcr.io/${{ github.repository }}:${{ github.sha }}
          kubectl rollout status deployment/my-app --timeout=5m