centos7 docker jenkins 内存优化 docker jenkins pipeline

环境

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

所有主机的Docker安装方式  可用 ansible-roles 快速部署所有主机   https://github.com/gitDream/ansible-roles_jenkins_harbor_gitlab.git

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

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安装Harbor

参考：

• http://blog.51cto.com/bigboss/2316525         
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docker 配https registry私有仓库的重点说明

• openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout ./server.key -out ./server.crt -subj "/CN=registry.lotbrick.com"
  copydocker 客户端登入harbor 前导入自制Ca 证书位置         mkdir -p /etc/docker/certs.d/registry.lotbrick.com        #registry.lotbrick.com  创建域名目录

mkdir -p /etc/docker/certs.d/registry.lotbrick.com

scp ./server.crt  /etc/docker/certs.d/registry.lotbrick.com/ca.crt

systemctl daemon-reload
systemctl restart docker
docker login registry.lotbrick.com

• 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

    

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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



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• Jenkins凭据ID获取方法



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• 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