• 基于Redhat8.3
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1.确认是否有旧版本docker。有的话卸载
yum list installed | grep docker (查询)
yum remove -y docker-ce.x86_64 docker-client.x86_64 docker-common.x86_64(卸载)
2.安装需要的依赖包
yum install -y yum-utils device-mapper-persistent-data lvm2
yum install -y epel-release
3.添加阿里云库
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
4.安装插件
dnf install https://download.docker.com/linux/centos/7/x86_64/stable/Packages/containerd.io-1.4.3-3.1.el7.x86_64.rpm
#更换环境如果报错缺失某个containerd.io版本,可以到连接中更换版本地址在线安装
5.安装docker
yum install -y docker-ce
6.启动docker并检测:
systemctl start docker.service
docker version
systemctl status docker
systemctl enable docker.service(开机启动)

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1.安装docker-compose
curl -L https://get.daocloud.io/docker/compose/releases/download/1.25.5/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose
2.更改权限
chmod +x /usr/local/bin/docker-compose
3.查看版本
docker-compose --version