Docker-compose

Compose是用于定义和运行多容器 Docker应用工具
通过Compose 可以使用YML文件来配置应用程序所需要的所有服务

Docker Compose使用的三步：
1.使用docker file 定义应用程序的环境
2.docker-compose定义构成应用程序的服务
3.启动Compose，就相当于启动应用

版本的区别

compose文件版本：version: '2.3'
docker-compose程序版本：
[root@harbor harbor]# docker-compose --version
docker-compose version 1.18.0, build 8dd22a9
docker版本：
[root@harbor harbor]# docker --version
Docker version 26.1.4, build 5650f9b

安装docker-compose

# 1.方法一：
[root@docker01 ~]# yum install -y docker-compose
[root@docker01 ~]# docker-compose --version
docker-compose version 1.18.0, build 8dd22a9

# 2.方法二：
[root@docker02 bin]# curl -L
"https://github.com/docker/compose/releases/download/v2.29.2/dockercompose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
curl -L "https://github.com/docker/compose/releases/download/2.29.2/dockercompose-Linux-x86_64" -o /usr/local/bin/docker-compose
[root@docker02 bin]# chmod +x /usr/local/bin/docker-compose
[root@docker02 bin]# docker-compose --version
Docker Compose version v2.29.2

docker-compose操作和语法

###### 操作
# 第一次启动创建容器并前台输出日志
[root@docker01 mysql]# docker-compose -f mysql-compose.yml up

# 如果日志没有报错，直接后台启动
[root@docker01 mysql]# docker-compose -f mysql-compose.yml up -d

# 停止容器
[root@docker01 mysql]# docker-compose -f mysql-compose.yml stop

# 启动容器
[root@docker01 mysql]# docker-compose -f mysql-compose.yml start

# 重启容器
[root@docker01 mysql]# docker-compose -f mysql-compose.yml restart

# 查看该compose中的所有容器运行状态
[root@docker01 mysql]# docker-compose -f mysql-compose.yml ps

# 删除compose中的容器
[root@docker01 mysql]# docker-compose rm

# 查看日志
[root@docker01 mysql]# docker-compose logs

# 指定服务启停
[root@harbor harbor]# docker-compose start proxy

#######   yml 语法严格缩进
version: '版本号'

services:
  服务名称1:
    image: 容器镜像
    container_name: 容器名称
    environment:
      - 环境变量1=值1
      - 环境变量2=值2
    volumes:
      - 宿主机数据目录:容器内数据目录
    ports:
      - 宿主机端口:容器内映射端口
    networks:
      - 自定义网络名称
    links:
      - namenode
    command:
      - 数据库使用字符集变量时可以用
    restart: always
  服务名称2:
    image: 容器镜像
    container_name: 容器名称
    environment:
      - 环境变量1=值1
      - 环境变量2=值2
      user: 宿主机用户:容器用户
    volumes:
       - 宿主机数据目录:容器内数据目录
    ports:
      - 宿主机端口:容器内映射端口
    networks:
      - 自定义网络名称
    links:
      - namenode
    depends_on:
      - 依赖服务
    restart: always
    
networks:
  default:
  externnal: true
  name: 自定义网络名称

实战docekr-compose操作

##### mysql
docker run \
--name mysql80 \
-p 3306:3306 \
-v /data/mysql:/var/lib/mysql \
-e MYSQL_ROOT_PASSWORD=123 \
-e MYSQL_DATABASE=zabbix \
-e MYSQL_USER=zabbix \
-e MYSQL_PASSWORD=zabbix \
--restart=always \
-d mysql:8.0 \
--character-set-server=utf8mb4 \
--collation-server=utf8mb4_bin \
--log_bin_trust_function_creators

----------------------------------------------------------------------------
mkdir /mysql

vim docker-compose.yml
version: '2.0'
services:
  mysql80:
    image: mysql:8.0
    container_name: mysql80
    environment:
      - MYSQL_ROOT_PASSWORD='123'
      - MYSQL_DATABASE='zabbix'
      - MYSQL_USER='zabbix'
      - MYSQL_PASSWORD='zabbix'
    volumes:
      - /data/mysql:/var/lib/mysql
    ports:
      - 3306:3306
    command:
      - --character-set-server=utf8mb4
      - --collation-server=utf8mb4_bin
      - --log_bin_trust_function_creators
    restart: always

##### zabbix-server
docker run \
--link mysql80 \
--name zabbix-server \
-p 10051:10051 \
-e DB_SERVER_HOST="mysql80" \
-e MYSQL_USER="zabbix" \
-e MYSQL_PASSWORD="zabbix" \
-d zabbix/zabbix-server-mysql

-------------------------------------------------------
version: '3.0'
services:
  zabbix-server:
    image: zabbix/zabbix-server-mysql
    container_name: zabbix-server
    environment:
      - DB_SERVER_HOST=mysql80
      - MYSQL_USER=zabbix
      - MYSQL_PASSWORD=zabbix
      - MYSQL_DATABASE=zabbix
    depends_on:
      - mysql80
    links:
      - mysql80
    ports:
      - 10051:10051
    restart: always

##### zabbix-web
docker run \
--link zabbix-server \
--link mysql80 \
--name zabbix-web \
-p 80:8080 \
-p 443:8443 \
-e DB_SERVER_HOST="mysql80" \
-e MYSQL_USER="zabbix" \
-e MYSQL_PASSWORD="zabbix" \
-e ZBX_SERVER_HOST="zabbix-server" \
-e PHP_TZ="Asia/Shanghai" \
-d zabbix/zabbix-web-nginx-mysql

-----------------------------------------------------------
version: '3.0'
services:
  zabbix-web:
    image: zabbix/zabbix-web-nginx-mysql
    container_name: zabbix-web
    environment:
      - DB_SERVER_HOST=mysql80
      - MYSQL_USER=zabbix
      - MYSQL_PASSWORD=zabbix
      - ZBX_SERVER_HOST=zabbix-server
      - PHP_TZ=Asia/Shanghai
    depends_on:
      - mysql80
    links:
      - mysql80
      - zabbix-server
    ports:
      - 80:8080
      - 443:8443
    restart: always

整合docker-compose（zabbix服务）

mkdir /zabbix

vim docker-compose.yml
version: '2.0'
services:
  mysql80:
    image: mysql:8.0
    container_name: mysql80
    environment:
      - MYSQL_ROOT_PASSWORD='123'
      - MYSQL_DATABASE='zabbix'
      - MYSQL_USER='zabbix'
      - MYSQL_PASSWORD='zabbix'
    volumes:
      - /data/mysql:/var/lib/mysql
    ports:
      - 3306:3306
    command:
      - --character-set-server=utf8mb4
      - --collation-server=utf8mb4_bin
      - --log_bin_trust_function_creators
    restart: always
    
  zabbix-server:
    image: zabbix/zabbix-server-mysql
    container_name: zabbix-server
    environment:
      - DB_SERVER_HOST=mysql80
      - MYSQL_USER=zabbix
      - MYSQL_PASSWORD=zabbix
      - MYSQL_DATABASE=zabbix
    depends_on:
      - mysql80
    links:
      - mysql80
    ports:
      - 10051:10051
    restart: always
    
    zabbix-web:
    image: zabbix/zabbix-web-nginx-mysql
    container_name: zabbix-web
    environment:
      - DB_SERVER_HOST=mysql80
      - MYSQL_USER=zabbix
      - MYSQL_PASSWORD=zabbix
      - ZBX_SERVER_HOST=zabbix-server
      - PHP_TZ=Asia/Shanghai
    depends_on:
      - mysql80
    links:
      - mysql80
      - zabbix-server
    ports:
      - 80:8080
      - 443:8443
    restart: always

整合docekr-compose（CICD服务）

docker run \
--name gitlab \
--hostname 10.0.0.102 \
--env GITLAB_OMNIBUS_CONFIG="external_url 'http://10.0.0.102'" \
-p 443:443 \
-p 80:80 \
-p 2222:22 \
--restart always \
-v /data/gitlab/config:/etc/gitlab \
-v /data/gitlab/logs:/var/log/gitlab \
-v /data/gitlab/data:/var/opt/gitlab \
-d gitlab/gitlab-ce

docker run \
--name jenkins \
--privileged \
--user=root \
--restart=always \
-v /data/jenkins/:/var/jenkins_home \
-v /usr/bin/docker:/usr/bin/docker \
-v /var/run/docker.sock:/var/run/docker.sock \
-v /root/.ssh/:/root/.ssh/ \
-v /root/.docker/config.json:/root/.docker/config.json \
-p 8080:8080 \
-p 50000:50000 \
-d jenkins/jenkins:2.422

version: '3.6'
services:
  gitlab:
    image: gitlab/gitlab-ce
    container_name: gitlab
    restart: always
    hostname: '10.0.0.102'
    environment:
      GITLAB_OMNIBUS_CONFIG: |
        external_url 'http://10.0.0.102'
        gitlab_rails['gitlab_shell_ssh_port'] = 2222
        alertmanager['enable'] = false
        node_exporter['enable'] = false
        redis_exporter['enable'] = false
        postgres_exporter['enable'] = false
    ports:
      - '80:80'
      - '443:443'
      - '2222:22'
    volumes:
      - '/data/gitlab/config:/etc/gitlab'
      - '/data/gitlab/logs:/var/log/gitlab'
      - '/data/gitlab/data:/var/opt/gitlab'
      
  jenkins:
    image: jenkins/jenkins:2.422
    container_name: jenkins
    restart: always
    privileged: true
    user: root
    ports:
      - '8080:8080'
      - '50000:50000'
    volumes:
      - '/data/jenkins:/var/jenkins_home'
      - '/usr/bin/docker:/usr/bin/docker'
      - '/var/run/docker.sock:/var/run/docker.sock'
      - '/root/.ssh/:/root/.ssh/'
      - '/root/.docker/config.json:/root/.docker/config.json'