1、前言

本文记录了通过docker、docker-compose部署code-server、mysql,搭建在线开发环境的过程，综合体验很爽，适合小规模开发团队使用。

下一步准备逐步尝试结合git、jenkins、java代码检查、sql代码检查、k8s、helm，实现一套在线开发、代码评审、编译、打包、测试、部署的devops。

安装环境：
vmware hypervision、centos 8

2、安装docker

# 获取阿里云yum镜像文件
curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-8.repo
# 非阿里云主机需要替换地址
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
# 重建 yun cache
yum clean all
yum makecache
# 使用yum升级系统
yum update  --nobest

#删除旧的docker
sudo yum remove docker                   docker-client                   docker-client-latest                   docker-common                   docker-latest                   docker-latest-logrotate                   docker-logrotate                   docker-engine

# 安装最新版的containerd.io
dnf install https://mirrors.aliyun.com/docker-ce/linux/centos/7/x86_64/nightly/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm

#安装Yum源管理工具
yum install -y yum-utils device-mapper-persistent-data lvm2

#安装阿里云的docker-ce源
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum makecache

#安装docker-ce

yum install docker-ce docker-ce-cli

#配置docker 镜像
sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://heusyzko.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

3、安装 docker-compose

curl -L https://get.daocloud.io/docker/compose/releases/download/1.26.2/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose

4、准备vs的settings.json配置文件

vi settings.json

{
    // Nomal
    "editor.fontSize": 18,
    "workbench.iconTheme": "vscode-icons",
    "vsicons.dontShowNewVersionMessage": true,
    "editor.minimap.enabled": true,
    "workbench.colorTheme": "Visual Studio Light",
    "workbench.startupEditor": "newUntitledFile",
    // 保存格式化
    "files.autoSave": "onFocusChange",
    "editor.formatOnPaste": true,
    "editor.formatOnType": true,
    // Env
    "java.home": "/usr/local/jdk1.8.0_261",
    "maven.executable.path": "/usr/local/apache-maven-3.6.0/bin/mvn",
    "java.configuration.maven.userSettings": "/usr/local/apache-maven-3.6.0/conf/settings.xml",
    "maven.terminal.customEnv": [
        {
            "environmentVariable": "JAVA_HOME",
            "value": "/usr/local/jdk1.8.0_261"
        }
    ],
    "python.formatting.provider": "yapf",
    "python.autoComplete.addBrackets": true,
    "python.jediEnabled": false,
    "python.linting.pylintEnabled": true,
    // exclude file
    "files.exclude": {
        "**/.classpath": true,
        "**/.project": true,
        "**/.settings": true,
        "**/.factorypath": true,
        "**/.vscode": true,
        "**/.empty": true,
    },
    // code-runner
    "code-runner.clearPreviousOutput": true,
    "code-runner.runInTerminal": false,
    // 执行文件的脚本，可以使用绝对路径
    "code-runner.executorMap": {
        "python": "/usr/local/anaconda3/python3",
        "java": "cd $dir && javac $fileName && java $fileNameWithoutExt",
    },
}

5、编辑Dockerfile文件

vs code的插件建议自行在官方市场下载后,放到extensions目录。
下载地址：
https://marketplace.visualstudio.com/

Java开发环境常用插件如下：

名称	说明
beautify	代码美化插件
Chinese (Simplified) Language Pack for Visual Studio Code	中文语言包
Debugger for Java	关键插件，java debug插件
GitLens	git增强插件，可以很方便看到代码的提交修改记录，还至此在代码行提示代码的变更信息
Java Test Runner	java测试插件
Language Support for Java(TM) by Red Hat	关键插件，支持java语言
Maven for Java	关键插件，java maven插件
Visual Studio IntelliCode	关键插件，代码自动提示插件

FROM codercom/code-server:latest
# COPY JDK和MAVEN
COPY jdk1.8.0_261 /usr/local/jdk1.8.0_261/
COPY apache-maven-3.6.3 /usr/local/apache-maven-3.6.3/
# code-server配置文件 插件
 COPY extensions /root/.local/share/code-server/extensions/
 COPY settings.json /root/.local/share/code-server/User/
# Env
ENV JAVA_HOME=/usr/local/jdk1.8.0_261 \
    JRE_HOME=/usr/local/jdk1.8.0_261/jre \
    PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin \
    CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib \
    MAVEN_HOME=/usr/local/apache-maven-3.6.3

ENV PATH=$MAVEN_HOME/bin:$PATH

WORKDIR /home/coder/project
# 容器启动code-server：指定插件目录，指定中文，指定免密登录
ENTRYPOINT ["code-server","--locale","zh-cn","--host","0.0.0.0","--port","8080", "--user-data-dir", "/home/coder","--cert",""]

6、build 自定义docker image

docker build -t boshine/code-server:latest --rm=true .

7、编辑docker-compose

如果团队多人一起协同开发，建议每个人部署一个code-server容器，实现环境隔离。
配合github/gitee/gitlab等代码管理服务器使用。

version: "3"

services:
  luocoder:
    container_name: luocoder
    image: boshine/code-server
    links:
      - db
    depends_on:
      - db
    ports:
      - "8080:8080"
      - "8088:8088"
    volumes:
      - "/root/code-server:/home/"
      - "/root/code-server/root:/root"
      - "/root/code-server/tmp:/tmp"
    environment:
      PASSWORD: 12345678
    restart: always
    privileged: true
    user: root

  db:
    container_name: mysql
    image: mysql:5.7
    ports:
      - "3306:3306"
    volumes:
      - "/root/mysql/data:/var/lib/mysql"
      - "/root/mysql/conf:/etc/mysql"
      - "/root/mysql/logs:/var/log/mysql"
    command: [
            '--character-set-server=utf8mb4',
            '--collation-server=utf8mb4_unicode_ci',
            '--max_connections=3000'
    ]
    environment:
      MYSQL_ROOT_PASSWORD: 12345678
    restart: always
    privileged: true
    user: root

8、使用docker-compose运行coder容

docker-compose up -d