1.安裝docker

yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum makecache fast
yum -y install docker-ce
systemctl start docker

2.安裝docker-compose

yum install python-pip
pip install -i https://pypi.doubanio.com/simple/ --trusted-host pypi.doubanio.com docker-compose
或直接安裝docker-compose 執行檔案
curl -L https://get.daocloud.io/docker/compose/releases/download/1.25.4/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose
mv /usr/local/bin/docker-compose /usr/bin/
docker-compose -version

3.映象加速

[root@localhost test]# cat /etc/docker/daemon.json 
{
"registry-mirrors": [
"https://registry.docker-cn.com",
"http://hub-mirror.c.163.com",
"https://docker.mirrors.ustc.edu.cn"
]
}

4.編寫docker-compose.yml檔案。

[root@localhost test]# cat docker-compose.yml 
version: '3.8'	#docker版本不通version值也不同。
services:
  nginx: #容器模組
    restart: always #總是啟動
    image: nginx #映象
    container_name: test_nginx #容器名稱
    ports:
      - '80:80'	#對映埠
    environment:
      TZ: Asia/Shanghai #時區
    links:
      - tomcat #連線到Tomcat容器中，相當於反問Tomcat接解答為Tomcat的容器ip地址

    volumes:
      - /root/test/test_nginx/conf.d/:/etc/nginx/conf.d/ #掛載目錄

  tomcat:
    restart: always
    image: daocloud.io/library/tomcat:8
    container_name: test_tomcat
    ports:
       - '8080:8080'
    environment:
      TZ: Asia/Shanghai
    links:
      - mysql
    volumes:
      - '/root/test/test_tomcat/webapps:/usr/local/tomcat/webapps/'

  mysql:
    restart: always
    image: daocloud.io/library/mysql:5.7.4 
    container_name: test_mysql
    ports:
      - '3306:3306'
    environment:
      MYSQL_ROOT_PASSWORD: 123456
      TZ: Asia/Shanghai

    volumes:
      - '/root/test/test_mysql/data/:/var/lib/mysql/'

5.容器操作

docker-compose up 前臺啟動容器
docker-compose up -d 後臺啟動容器
docker-compose ps 檢視容器狀態資訊
docker-compose start 啟動容器
docker-compose stop 停止容器
docker-compose rm 刪除容器
docker-compose down 停止並刪除容器
docker-compose logs -f 檢視日誌