使用 GitHub Actions 在作业之间共享构建的镜像

由于每个作业在其自己的运行器中都是隔离的，因此您无法在作业之间使用您构建的镜像，除非您使用自托管运行器或Docker Build Cloud。但是，您可以在工作流程中使用actions/upload-artifact和actions/download-artifact actions 在工作流程中传递数据。

name: ci

on:
  push:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Build and export
        uses: docker/build-push-action@v6
        with:
          tags: myimage:latest
          outputs: type=docker,dest=${{ runner.temp }}/myimage.tar

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: myimage
          path: ${{ runner.temp }}/myimage.tar

  use:
    runs-on: ubuntu-latest
    needs: build
    steps:
      - name: Download artifact
        uses: actions/download-artifact@v4
        with:
          name: myimage
          path: ${{ runner.temp }}

      - name: Load image
        run: |
          docker load --input ${{ runner.temp }}/myimage.tar
          docker image ls -a
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