Docker 使用 github 构建和推送：无效的引用格式

Question

我想构建我的镜像并将其推送到 dockerhub 使用 github actions.This is my repo

这就是我想要的工作方式：

name: ci

on:
  push:
    branches:
      - 'master'

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v2
      -
        name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      -
        name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_PASSWORD }}
      -
        name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          load: true
          tags: shirzadi/ehsan:latest
      -
        name: Push it!
        run: docker push ${{ env.IMAGE }}:${{ env.GIT_SHA }}

这是结果：

Answer 1

您没有 env.IMAGE 数据。下面的一段代码应该可以完成这项工作。

      - name: Build and push
        run: docker build -t ${{ env.IMAGE }}:${{ github.sha }} .
        env:
          IMAGE: shirzadi/ehsan
           

      - name: Push it!
        run: docker push ${{ env.IMAGE }}:${{ github.sha }}
        env:
          IMAGE: shirzadi/ehsan

Answer 2

您正在使用不存在的环境变量。根据 docker/build-push-action@v2 文档，它可以一步构建、标记和推送您的图像：

jobs:
  docker:
    steps:
      # ...
      -
        name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          push: true
          tags: shirzadi/ehsan:latest,shirzadi/ehsan:${{ env.GITHUB_SHA }}

The tags key lists 2 tags and use the GITHUB_SHA environment variable. These tags will be pushed as the push key is set to true.

参见：

• Github Actions - Default environment variables
• docker/build-push-action@v2 - customizing inputs