使用 GitHub Actions 在作业之间共享构建的映像

由于每个作业都在自己的运行器中隔离，因此您无法在作业之间使用构建的映像，除非您使用自托管运行器。但是，您可以使用actions/upload-artifact 和在工作流程中的作业之间传递数据操作/下载工件操作：

name: ci

on:
  push:
    branches:
      - "main"

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Build and export
        uses: docker/build-push-action@v5
        with:
          context: .
          tags: myimage:latest
          outputs: type=docker,dest=/tmp/myimage.tar
      - name: Upload artifact
        uses: actions/upload-artifact@v3
        with:
          name: myimage
          path: /tmp/myimage.tar

  use:
    runs-on: ubuntu-latest
    needs: build
    steps:
      - name: Download artifact
        uses: actions/download-artifact@v3
        with:
          name: myimage
          path: /tmp
      - name: Load image
        run: |
          docker load --input /tmp/myimage.tar
          docker image ls -a