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12、容器单机编排工具Docker Compose安装

容器单机编排工具Docker Compose

安装Docker Compose

离线安装,直接从github或国内镜像站下载安装对应版本
https://github.com/docker/compose/releases
找到docker-compose-linux-x86_64,下载拖入linux系统
[root@ubuntu2004 ~]#mv docker-compose-linux-x86_64-v2.12.0 /usr/bin/docker-compose
[root@ubuntu2004 ~]#chmod +x /usr/bin/docker-compose
查看版本
[root@ubuntu2004 ~]#docker-compose --version
Docker Compose version v2.12.0

docker compose安装脚本

#!/bin/bash

DOCKER_VERSION="20.10.10"
DOCKER_URL="http://mirrors.ustc.edu.cn"


DOCKER_COMPOSE_VERSION=2.6.1
DOCKER_COMPOSE_FILE=docker-compose-Linux-x86_64


COLOR_SUCCESS="echo -e \\033[1;32m"
COLOR_FAILURE="echo -e \\033[1;31m"
END="\033[m"

. /etc/os-release
UBUNTU_DOCKER_VERSION="5:${DOCKER_VERSION}~3-0~${ID}-${UBUNTU_CODENAME}"

color () {
    RES_COL=60
    MOVE_TO_COL="echo -en \\033[${RES_COL}G"
    SETCOLOR_SUCCESS="echo -en \\033[1;32m"
    SETCOLOR_FAILURE="echo -en \\033[1;31m"
    SETCOLOR_WARNING="echo -en \\033[1;33m"
    SETCOLOR_NORMAL="echo -en \E[0m"
    echo -n "$1" && $MOVE_TO_COL
    echo -n "["
    if [ $2 = "success" -o $2 = "0" ] ;then
        ${SETCOLOR_SUCCESS}
        echo -n $"  OK  "    
    elif [ $2 = "failure" -o $2 = "1"  ] ;then 
        ${SETCOLOR_FAILURE}
        echo -n $"FAILED"
    else
        ${SETCOLOR_WARNING}
        echo -n $"WARNING"
    fi
    ${SETCOLOR_NORMAL}
    echo -n "]"
    echo 
}


install_docker(){
    if [ $ID = "centos" -o $ID = "rocky" ];then
        if [ $VERSION_ID = "7" ];then
            cat >  /etc/yum.repos.d/docker.repo  <<EOF
[docker]
name=docker
gpgcheck=0
#baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/7/x86_64/stable/
baseurl=${DOCKER_URL}/docker-ce/linux/centos/7/x86_64/stable/
EOF
        else     
            cat >  /etc/yum.repos.d/docker.repo  <<EOF
[docker]
name=docker
gpgcheck=0
#baseurl=https://mirrors.aliyun.com/docker-ce/linux/centos/8/x86_64/stable/
baseurl=${DOCKER_URL}/docker-ce/linux/centos/8/x86_64/stable/
EOF
        fi
        yum clean all 
        ${COLOR_FAILURE} "Docker有以下版本"${END}
        yum list docker-ce --showduplicates
        ${COLOR_FAILURE}"5秒后即将安装: docker-"${DOCKER_VERSION}" 版本....."${END}
        ${COLOR_FAILURE}"如果想安装其它Docker版本,请按ctrl+c键退出,修改版本再执行"${END}
        sleep 5
        yum -y install docker-ce-$DOCKER_VERSION docker-ce-cli-$DOCKER_VERSION  \
            || { color "Base,Extras的yum源失败,请检查yum源配置" 1;exit; }
    else
        dpkg -s docker-ce &> /dev/null && $COLOR"Docker已安装,退出" 1 && exit
        apt update || { color "更新包索引失败" 1 ; exit 1; }  
        apt  -y install apt-transport-https ca-certificates curl software-properties-common || \
            { color "安装相关包失败" 1 ; exit 2;  }  
        curl -fsSL ${DOCKER_URL}/docker-ce/linux/ubuntu/gpg | sudo apt-key add -
        add-apt-repository "deb [arch=amd64] ${DOCKER_URL}/docker-ce/linux/ubuntu $(lsb_release -cs) stable"
        apt update
        ${COLOR_FAILURE} "Docker有以下版本"${END}
        apt-cache madison docker-ce
        ${COLOR_FAILURE}"5秒后即将安装: docker-"${UBUNTU_DOCKER_VERSION}" 版本....."${END}
        ${COLOR_FAILURE}"如果想安装其它Docker版本,请按ctrl+c键退出,修改版本再执行"${END}
        sleep 5
        apt -y  install docker-ce=${UBUNTU_DOCKER_VERSION} docker-ce-cli=${UBUNTU_DOCKER_VERSION}
    fi
    if [ $? -eq 0 ];then
        color "安装软件包成功"  0
    else
        color "安装软件包失败,请检查网络配置" 1
        exit
    fi
        
    mkdir -p /etc/docker
    tee /etc/docker/daemon.json <<-'EOF'
{
      "registry-mirrors": ["https://pgavrk5n.mirror.aliyuncs.com"],
      "insecure-registries": ["harbor.wang.org"]
}
EOF
    systemctl daemon-reload
    systemctl enable docker
    systemctl restart docker
    docker version && color "Docker 安装成功" 0 ||  color "Docker 安装失败" 1
    echo 'alias rmi="docker images -qa|xargs docker rmi -f"' >> ~/.bashrc
    echo 'alias rmc="docker ps -qa|xargs docker rm -f"' >> ~/.bashrc
}



install_docker_compose(){
    if [ $ID = "centos" -o $ID = "rocky" ];then
        ${COLOR_SUCCESS}"开始安装 Docker compose....."${END}
        sleep 1
        if [ ! -e  ${DOCKER_COMPOSE_FILE} ];then
            #curl -L https://github.com/docker/compose/releases/download/${DOCKER_COMPOSE_VERSION}/${DOCKER_COMPOSE_FILE} -o /usr/bin/docker-compose
            curl -L https://get.daocloud.io/docker/compose/releases/download/v${DOCKER_COMPOSE_VERSION}/docker-compose-$(uname -s)-$(uname -m) -o /usr/bin/docker-compose
        else
            mv ${DOCKER_COMPOSE_FILE} /usr/bin/docker-compose
        fi
        chmod +x /usr/bin/docker-compose
    else 
        apt -y install docker-compose
    fi
    if docker-compose --version ;then
        ${COLOR_SUCCESS}"Docker Compose 安装完成"${END} 
    else
        ${COLOR_FAILURE}"Docker compose 安装失败"${END}
        exit
    fi
}



docker info  &> /dev/null  && ${COLOR_FAILURE}"Docker已安装"${END} || install_docker

docker-compose --version &> /dev/null && ${COLOR_FAILURE}"Docker Compose已安装"${END} || install_docker_compose

查看命令格式

https://docs.docker.com/compose/reference/

利用网站将Docker命令自动生成docker-compose
一键生成docker-compose.yml
https://www.composerize.com/

例如:[root@ubuntu2004 ~]#docker run -d -p 80:80 --name nginx01 -v /data/nginx/html/:/apps/nginx/html/ --restart always nginx:v1.22.0-1
进行转换
[root@ubuntu2004 ~]#mkdir /data/docker-compose/nginx -p
[root@ubuntu2004 ~]#cd /data/docker-compose/nginx
[root@ubuntu2004 nginx]#vim docker-compose.yml
version: '3.3'
services:
    nginx:
        ports:
            - '80:80'
        container_name: nginx01
        volumes:
            - '/data/nginx/html/:/apps/nginx/html/'
        restart: always
        image: 'nginx:v1.22.0-1'
[root@ubuntu2004 nginx]#docker-compose up 前台执行,可查看错误
[root@ubuntu2004 nginx]#docker-compose up -d 后台执行

只删除停止的容器:docker-compose rm
停止并删除容器及镜像:docker-compose down

docker compose编写示例

version: '3.3'
services:
    wordpress:
        ports:
            - '80:80'
        container_name: wordpress
        volumes:
            - '/data/wordpess:/var/www/html'
        restart: always
        image: 'wordpress:php7.4-apache'
    mysql:
        network_mode: 'container:wordpress'
        environment:
            - MYSQL_ROOT_PASSWORD=123456
            - MYSQL_DATABASE=wordpress
            - MYSQL_USER=wordpress
            - MYSQL_PASSWORD=123456
        container_name: mysql
        volumes:
            - '/data/mysql:/var/lib/mysql'
        restart: always
        image: 'mysql:8.0.29-oracle'


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