Gitea Actions/Github Actions 构建 SpringBoot 多平台 Docker 镜像

借助 Gitea Actions/Github Actions 实现发布版本后，自动打包 SpringBoot 项目并构建成 Docker 镜像，推送到阿里云 Docker 仓库中，并通过企业微信机器人发送消息通知

一、准备Springboot项目

使用 idea 新建即可，选择Gradle，java版本选择11

二、准备Dockerfile

FROM docker.io/seepine/openjdk:11-jre as builder
COPY build/libs/*.jar /work/application.jar
WORKDIR /work
RUN java -Djarmode=layertools -jar application.jar extract

FROM docker.io/seepine/openjdk:11-jre
WORKDIR work
COPY --from=builder /work/spring-boot-loader/ ./
COPY --from=builder /work/snapshot-dependencies/ ./
COPY --from=builder /work/dependencies/ ./
COPY --from=builder /work/application/ ./

ENV JAVA_OPTS="-server -Xms512m -Xmx512m" \
    SPRING_PROFILES_ACTIVE="prod"

ENTRYPOINT wait.sh && java ${JAVA_OPTS} -Ddruid.mysql.usePingMethod=false \
    -Djava.security.egd=file:/dev/./urandom \
    -Dspring.profiles.active=${SPRING_PROFILES_ACTIVE} \
    org.springframework.boot.loader.JarLauncher

三、准备build.yaml

新建.gitea/workflows/build.yaml文件
需要提前配置 Docker 仓库的密码到 Secrets 中，若需要企业微信通知，也需要配置企业微信机器人的 WebHook 到 Secrets 中。

name: CI

# 打标签时触发构建，另外标签需v开头，例如v1.0.0，同时需要配置 DOCKER_PASSWORD 的 secrets
# 若需要企业微信通知，还需要配置 WECHAT_WORK_BOT_WEBHOOK 的 secrets
#   构建后镜像为 ${docker_registry}/${docker_username}/${repo_name}:1.0.0
on:
  push:
    tags:
      - v*

jobs:
  build-image:
    runs-on: ubuntu-latest
    container:
      # 使用支持docker的act镜像
      image: catthehacker/ubuntu:act-latest
      volumes:
        # 缓存构建工具，例如node
        - ubuntu_hostedtoolcache:/opt/hostedtoolcache
        # 缓存docker构建步骤
        - ubuntu_dockercache:/opt/dockercache
    env:
      # 此处可修改为你任意 docker 镜像仓库地址和用户名
      DOCKER_REGISTRY: registry.cn-hangzhou.aliyuncs.com
      DOCKER_USERNAME: seepine
    steps:
      # 拉取代码
      - name: Checkout
        uses: actions/checkout@v3

      # java环境
      - name: Setup Java
        uses: actions/setup-java@v3
        with:
          distribution: zulu
          java-version: 11
          # 缓存gradle，若是使用maven构建，改为maven即可，具体可查看 https://github.com/actions/setup-java
          cache: gradle  

      # 打包
      - name: Gradle Build
        run: ./gradlew bootJar -x test --no-daemon

      # Docker配置qemu
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v2

      # Docker配置多平台环境
      - name: Set up Docker BuildX
        uses: docker/setup-buildx-action@v2

      # 登录镜像仓库
      - name: Login to DockerHub
        uses: docker/login-action@v2
        with:
          registry: ${{ env.DOCKER_REGISTRY }}
          username: ${{ env.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}

      # 生成名称和版本，例如 seepine/springboot-demo ，由发布 v1.2.5 触发，则分别为
      # REPO_NAME=springboot-demo
      # REPO_VERSION=1.2.5
      - name: Get Meta
        id: meta
        run: |
          echo REPO_NAME=$(echo ${GITHUB_REPOSITORY} | awk -F"/" '{print $2}') >> $GITHUB_OUTPUT
          echo REPO_VERSION=$(echo ${{ github.ref }} | awk -F"/" '{print $3}' | awk -F"v" '{print $2}') >> $GITHUB_OUTPUT          

      # 打包构建
      - name: Build and push
        uses: docker/build-push-action@v4
        with:
          context: .
          file: ./Dockerfile
          platforms: |
            linux/amd64
            linux/arm64
          push: true
          # 即最终打包成例如 registry.cn-hangzhou.aliyuncs.com/seepine/springboot-demo:latest
          # 和 registry.cn-hangzhou.aliyuncs.com/seepine/springboot-demo:1.2.5
          tags: |
            ${{ env.DOCKER_REGISTRY }}/${{ env.DOCKER_USERNAME }}/${{ steps.meta.outputs.REPO_NAME }}:latest
            ${{ env.DOCKER_REGISTRY }}/${{ env.DOCKER_USERNAME }}/${{ steps.meta.outputs.REPO_NAME }}:${{ steps.meta.outputs.REPO_VERSION }}     
          cache-from: type=local,src=/opt/dockercache/.buildx-${{ steps.meta.outputs.REPO_NAME }}-cache
          cache-to: type=local,dest=/opt/dockercache/.buildx-${{ steps.meta.outputs.REPO_NAME }}-cache-new,mode=max

      # 重建docker缓存
      - name: Rebuild docker cache
        run: |
          rm -rf /opt/dockercache/.buildx-${{ steps.meta.outputs.REPO_NAME }}-cache
          mv /opt/dockercache/.buildx-${{ steps.meta.outputs.REPO_NAME }}-cache-new /opt/dockercache/.buildx-${{ steps.meta.outputs.REPO_NAME }}-cache

      # 发送通知
      - name: WeChat Work notification
        uses: seepine/action-wechat-work@master
        # 若没有配置机器人WebHook则跳过
        if: ${{ env.WECHAT_WORK_BOT_WEBHOOK != '' }}
        env:
          WECHAT_WORK_BOT_WEBHOOK: ${{ secrets.WECHAT_WORK_BOT_WEBHOOK }}
        with:
          msgtype: markdown
          content: "${{ steps.meta.outputs.REPO_NAME }}构建成功。\n
          > 镜像: ${{ env.DOCKER_REGISTRY }}/${{ env.DOCKER_USERNAME }}/${{ steps.meta.outputs.REPO_NAME }}:${{ steps.meta.outputs.REPO_VERSION }}"