一、Yum 安装docker方式

1.1 安装必要的系统工具

$ yum install -y yum-utils device-mapper-persistent-data lvm2

1.2 添加软件源信息

$ yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

1.3 修改源

$ sed -i 's+download.docker.com+mirrors.aliyun.com/docker-ce+' /etc/yum.repos.d/docker-ce.repo

1.4 更新并安装Docker-CE

$ yum makecache fast

1.5 查找Docker-CE的版本

$ yum list docker-ce.x86_64 --showduplicates | sort -r
    #   Loading mirror speeds from cached hostfile
    #   Loaded plugins: branch, fastestmirror, langpacks
    #   docker-ce.x86_64            17.03.1.ce-1.el7.centos            docker-ce-stable
    #   docker-ce.x86_64            17.03.1.ce-1.el7.centos            @docker-ce-stable
    #   docker-ce.x86_64            17.03.0.ce-1.el7.centos            docker-ce-stable
    #   Available Packages

1.6 安装指定版本的Docker-CE

#yum -y install docker-ce-[VERSION]
$ yum -y install docker-ce-17.03.0.ce.1-1.el7.centos

1.7 启动Docker

$ systemctl start docker

1.8 配置镜像加速地址

• 加速地址可能随时失效。

$ mkdir -p /etc/docker
$ tee /etc/docker/daemon.json <<-'EOF'
{
 "registry-mirrors": [
    "https://docker.hpcloud.cloud",
    "https://docker.m.daocloud.io",
    "https://docker.mybacc.com",
    "https://docker.1panel.live",
    "http://mirrors.ustc.edu.cn",
    "https://docker.chenby.cn",
    "http://mirror.azure.cn",
    "https://dockerpull.org",
    "https://dockerhub.icu",
    "https://hub.rat.dev",
    "https://proxy.1panel.live",
    "https://docker.1panel.top",
    "https://docker.m.daocloud.io",
    "https://docker.1ms.run",
    "https://docker.ketches.cn"
  ],
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "10m",
    "max-file": "3"
  }
}
EOF

$ systemctl daemon-reload
$ systemctl restart docker

二、二进制安装docker 【👍首选安装方式】

2.1 二进制包下载

$ wget https://download.docker.com/linux/static/stable/x86_64/docker-27.1.1.tgz
    或者
$ wget https://mirrors.nju.edu.cn/docker-ce/linux/static/stable/x86_64/docker-27.1.1.tgz

2.2 解压，拷贝至/usr/bin 下

$ tar -xf docker-27.1.1.tgz
$ cp docker/* /usr/bin
$ which docker

2.3 编写docker.service文件

$ vim /etc/systemd/system/docker.service

    [Unit]
    Description=Docker Application Container Engine
    Documentation=https://docs.docker.com
    After=network-online.target firewalld.service
    Wants=network-online.target
    
    [Service]
    Type=notify
    ExecStart=/usr/bin/dockerd
    ExecReload=/bin/kill -s HUP $MAINPID
    LimitNOFILE=infinity
    LimitNPROC=infinity
    TimeoutStartSec=0
    Delegate=yes
    KillMode=process
    Restart=on-failure
    StartLimitBurst=3
    StartLimitInterval=60s
    
    [Install]
    WantedBy=multi-user.target

2.4 挂载docker默认存储路径 [可选]

• docker的默认工作路径在/var/lib/docker ，最好不修改默认存储路径，可以做软链接

#建立工作目录
$ mkdir /home/application/

#格式化磁盘
$ mkfs.ext4 /dev/sdb

#磁盘永久挂载
$ vim /etc/fstab
/dev/sdb  /home/application  ext4 defaults 0 0

#使挂载生效
$ mount -a


# 创建docker 工作目录
$ mkdir -p /home/application/docker


#创建软链接
$ ln -s /home/application/docker /var/lib/

2.5 添加可执行权限

$ chmod +x /etc/systemd/system/docker.service

2.6 启动，加载，开机自启动

$ systemctl daemon-reload
$ systemctl start docker.service
$ systemctl enable docker.service

2.7 配置镜像加速地址

• 加速地址可能随时失效。

$ mkdir -p /etc/docker
$ tee /etc/docker/daemon.json <<-'EOF'
{
 "registry-mirrors": [
    "https://docker.hpcloud.cloud",
    "https://docker.m.daocloud.io",
    "https://docker.mybacc.com",
    "https://docker.1panel.live",
    "http://mirrors.ustc.edu.cn",
    "https://docker.chenby.cn",
    "http://mirror.azure.cn",
    "https://dockerpull.org",
    "https://dockerhub.icu",
    "https://hub.rat.dev",
    "https://proxy.1panel.live",
    "https://docker.1panel.top",
    "https://docker.m.daocloud.io",
    "https://docker.1ms.run",
    "https://docker.ketches.cn"
  ],
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "10m",
    "max-file": "3"
  }
}
EOF

$ systemctl daemon-reload
$ systemctl restart docker

三、二进制安装docker-compose 【👍首选安装方式】

3.1 在Linux 64位系统上直接下载对应的二进制包

$ wget https://github.com/docker/compose/releases/download/v2.29.1/docker-compose-linux-x86_64 -O /usr/local/bin/docker-compose

$ chmod +x /usr/local/bin/docker-compose