Docker Compose 编排 DevOps 工具

文章目录

[隐藏]

• 准备
• docker-compose.yml 文件
• 使用
• 后记

在 Docker nginx 反向代理 设置 介绍了通过 nginx 反向代理关联容器。此为真实的使用场景。通过 Gitea 作为代码管理工具；Kanboard 作为任务管理；Jenkins 作为 CI 工具。这样的组合比较适合小型团队使用，相比起 GitLab 这种巨无霸来说，部署简单，使用简单。

准备

安装 Docker

$ curl -fsSL get.docker.com -o get-docker.sh  $ sudo sh get-docker.sh    <output truncated>    If you would like to use Docker as a non-root user, you should now consider  adding your user to the "docker" group with something like:    sudo usermod -aG docker your-user    Remember to log out and back in for this to take effect!    WARNING: Adding a user to the "docker" group grants the ability to run          containers which can be used to obtain root privileges on the          docker host.          Refer to https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface          for more information.  

安装 Docker Compose

$ sudo curl -L https://github.com/docker/compose/releases/download/1.19.0/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose  $ sudo chmod +x /usr/local/bin/docker-compose  $ docker-compose --version  

注：Docker 以及 Docker Compose 的安装，官方文档讲得非常清晰，在此不再赘述。

docker-compose.yml 文件

 version: "3.5"    services:    mysql:      image: mysql:latest      container_name: mysql      ports:        - "3306:3306"      networks:        - devops      environment:        - MYSQL_ROOT_PASSWORD=/run/secrets/db_root_password      volumes:        - type: bind          source: ./mysql/conf.d          target: /etc/mysql/conf.d        - type: bind          source: ./mysql/data          target: /var/lib/mysql        # - ./mysql/conf.d:/etc/mysql/conf.d        # - ./mysql/data:/var/lib/mysql      secrets:        - db_root_password      restart: always      gitea:      image: gitea/gitea:latest      container_name: gitea      ports:        - "10080:3000"        - "10022:22"      networks:        - devops      environment:        - VIRTUAL_HOST=git.vking.io        - VIRTUAL_PORT=3000        - GITEA_CUSTOM=/etc/gitea      depends_on:        - mysql      volumes:        - type: bind          source: ./gitea          target: /data        - type: bind          source: ./gitea/custom          target: /etc/gitea        # - ./gitea:/data        # - ./gitea/custom:/etc/gitea      restart: always      task:      image: kanboard/kanboard:latest      container_name: kanboard      ports:        - "8888:80"      networks:        - devops      environment:        - VIRTUAL_HOST=task.vking.io        - VIRTUAL_PORT=80      volumes:        - type: bind          source: ./kanboard/data          target: /var/www/app/data        - type: bind          source: ./kanboard/plugins          target: /var/www/app/plugins        # - ./kanboard/data:/var/www/app/data        # - ./kanboard/plugins:/var/www/app/plugins      restart: always      jenkins:      image: jenkins/jenkins:lts      container_name: jenkins      ports:        - "8081:8080"        - "50000:5000"      networks:        - devops      environment:        - VIRTUAL_HOST=jenkins.vking.io        - VIRTUAL_PORT=8080      volumes:        - type: bind          source: ./jenkins/data          target: /var/jenkins_home        # - ./jenkins/data:/var/jenkins_home      restart: always      nginx:        image: jwilder/nginx-proxy:alpine        container_name: nginx        ports:          - "80:80"        depends_on:          - gitea          - task          - jenkins        networks:          - devops        volumes:          - type: bind            source: /var/run/docker.sock            target: /tmp/docker.sock          # - /var/run/docker.sock:/tmp/docker.sock        restart: always    secrets:    db_root_password:      file: ./mysql/my_secret.txt    networks:    devops:      name: devops-network  

注: 通过 volumes bind 方式挂载的外部文件/目录，如果不存在的话，不会自动创建。

使用

• MySQL 的管理员密码，通过 mysql/my_my_secret.txt 设置，构建容器的时候会自动加载并设置。
• 不同 services 管理的域名，通过环境变量设置 VIRTUAL_HOST=域名；VIRTUAL_PORT=端口
• 创建镜像并执行 docker-compose up -d
• 删除容器及 volumn 数据 docker-compose down -v

后记

因为通过反向代理隐藏了暴露端口的细节，如果没有外部注册的域名的话，还需要通过 Dnsmasq 进行内部域名解析。

原文出处：github -> https://outmanzzq.github.io/2019/01/25/docker-devops-kits/