Gitlab+Harbor+Jenkins pipeline实现利用tag部署docker容器

测试部署主机IP：192.168.1.1
Jenkins主机IP：192.168.1.2
Harbor主机IP：192.168.1.3
Gitlab主机IP：192.168.0.10

系统信息：
    系统：CentOS 7.5
    内核：4.18.7-1.el7.elrepo.x86_64
    Docker版本：18.09
    docker-compose版本：1.23.1

有道笔记原文，为了防止复制粘贴出来的代码格式有误~~~~

所有主机的Docker安装方式

wget -O /etc/yum.repos.d/docker-ce.repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

yum install -y docker-ce

mkdir /etc/docker/
cat << EOF > /etc/docker/daemon.json
{   "registry-mirrors": ["https://registry.docker-cn.com"],
    "live-restore": true,
    "default-shm-size": "128M",
    "max-concurrent-downloads": 10,
    "oom-score-adjust": -1000,
    "debug": false
}   
EOF
systemctl enable docker
systemctl restart docker

安装Gitlab

• 参考这篇文章：

  http://blog.51cto.com/bigboss/2129284

• Docker方式安装：

  https://github.com/JyBigBoss/docker-compose/blob/master/gitlab/docker-compose.yaml

安装Harbor

• 参考：

  http://blog.51cto.com/bigboss/2316525

安装Jenkins

yum install -y python-pip
pip install docker-compose

cd $HOME && mkdir jenkins && cd jenkins
wget https://raw.githubusercontent.com/JyBigBoss/docker-compose/master/jenkins/Dockerfile
wget https://raw.githubusercontent.com/JyBigBoss/docker-compose/master/jenkins/docker-compose.yaml

docker-compose up -d

• Jenkins需要安装的插件

Gitlab Hook、Build Authorization Token Root、Publish Over SSH、Gitlab Authentication
Gitlab、Git Parameter、Git Tag Message、Pipeline、docker-build-step、Docker Pipeline

创建git仓库

• 在web页面创建一个test仓库，并在在仓库中新建一个index.html文件

cd $HOME
git clone git@192.168.0.10:yfg/test.git
cd test/
cat << EOF > index.html
<h1>Test 123</h1>
EOF
git add .
git commit -m ‘add index.html‘
git push

#创建两个tag
git tag v1 -m ‘version:1‘
git push --tags
git tag v2 -m ‘version:2‘
git push --tags

在Harbor上创建一个test仓库

配置Jenkins

• 打开Jenkins的设置页面，配置Publish over SSH插件

  

• 创建一个流水线(pipeline)项目

  
  
  
  
  
  
  
  
  
  
  
  

• 编写pipeline脚本,下面是这次测试发布用到的脚本

  • Docker Pipeline插件用法：https://jenkins.io/zh/doc/book/pipeline/docker/
  • 完整的pipeline脚本

  node {
    stage(‘ Git clone ‘) {
        git branch: ‘master‘, credentialsId: ‘a4a81561-8bc0-426e-89f9-b4d4aa1925d6‘, url: ‘git@192.168.0.10:yfg/test.git‘
        env.check_to_tag="$TAG"
        sh ‘[ -n "${check_to_tag}" ] &&  git checkout ${check_to_tag} ||  { echo -e "切换至指定的tag的版本，tag：${check_to_tag} 不存在或为空，请检查输入的tag!" && exit 111; }‘
    }
    stage("Create Dockerfile"){
        sh ‘‘‘cat << EOF > Dockerfile
  FROM python:3.7.1-alpine
  RUN mkdir /test
  WORKDIR /test
  COPY ./ /test
  EXPOSE 8000
  CMD ["python","-m","http.server"]
  EOF‘‘‘
        sh ‘cat Dockerfile‘
    }
    stage("Create docker-compose.yaml "){
        sh ‘‘‘cat << EOF > docker-compose.yaml
  version: "2.4"
  services:
  http:
    image: registry.lotbrick.com/test/http:${check_to_tag}
    container_name: python-http_server
    ports:
      - "80:8000"
    restart: always
  EOF‘‘‘
  
        sh ‘cat docker-compose.yaml‘
    }
  
    stage(‘Build Image And Push to registry‘) {
      //withRegistry(‘仓库地址‘,‘jenkins凭据ID‘)
      docker.withRegistry(‘https://registry.lotbrick.com‘, ‘9ffa7ef5-38c6-49da-8936-ec596359be56‘){
          //build当前目录(workspace)下的Dockerfile
          def BuildImage = docker.build("registry.lotbrick.com/test/http:${check_to_tag}")
          //Push刚才Build出来的镜像
          BuildImage.push()
        }
  }
  stage(‘Depoly‘){
      //调用Publish Over SSH插件，上传docker-compose.yaml文件并且执行deploy脚本
        sshPublisher(publishers: [sshPublisherDesc(configName: ‘jenkins_pipeline_test_deploy‘, transfers: [sshTransfer(cleanRemote: false, excludes: ‘‘, execCommand: ‘/bin/bash /root/deploy/deploy.sh‘, execTimeout: 120000, flatten: false, makeEmptyDirs: false, noDefaultExcludes: false, patternSeparator: ‘[, ]+‘, remoteDirectory: ‘/root/deploy‘, remoteDirectorySDF: false, removePrefix: ‘‘, sourceFiles: ‘docker-compose.yaml‘)], usePromotionTimestamp: false, useWorkspaceInPromotion: false, verbose: false)])
  
  }
  }

  • 生成流水线脚本的方法
    
    
    
    
    
    

  • Jenkins凭据ID获取方法
    
    
    
    
    

  • 发布脚本：depoly.sh：放到要部署代码的主机的/root/deploy目录下

  #!/bin/bash
  echo ‘正在更新版本......‘

  cd /root/deploy

  IMAGE_NAME=‘registry.lotbrick.com/test/http‘
  DOCKER_TAG=`awk -F ‘:‘ ‘/.*image/{print $NF}‘ docker-compose.yaml`

  echo -e "\n"
  docker-compose pull && docker-compose up -d

  if [  "$?" == 0 ];then
      echo ‘删除旧的image‘
      OLD_IMAGE=`docker images | grep $IMAGE_NAME | awk ‘{print $2,$3}‘ | grep -v "${DOCKER_TAG}" |awk ‘{print $1}‘`
      for i in $OLD_IMAGE;do
          docker rmi http:$i
      done
  else
     echo "更新版本失败！！！"
     exit 111
  fi

测试发布

• 第一次发布

• 再来一次

#感觉没玩够，再传个代码测试一回

cd $HOME
git clone https://github.com/HFIProgramming/mikutap.git

\cp -r mikutap/* test/

cd test
git add .
git commit -m ‘add mikutap page‘
git tag v3 -m ‘add mikutap page‘
git push --tags

原文：http://blog.51cto.com/bigboss/2317324