1.检查安装的Linux版本:
[root@localhost /]# cat /etc/redhat-release
CentOS Linux release 7.8.2003 (Core)
2.yum安装gcc相关:
yum -y install gcc #-y: 安装过程中的提升默认选yes
yum -y install gcc-c++
3.卸载系统中已经安装的Docker版本:
sudo yum remove docker docker-client docker-client-latest docker-common docker-latest docker-latest-logrotate docker-logrotate docker-engine
#使用阿里云镜像下载解决报错问题
yum install -y yum-utils
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
4.更新yum软件包索引:
yum makecache fast
##安装Docker Engine #containerd.io
yum install docker-ce docker-ce-cli
5.启动Docker:
#没有报错,docker启动成功
systemctl start docker
#设置开机启动
systemctl enable docker
6.测试Docker是否安装成功:
#看到docker进程
ps -ef|grep docker
#查看版本信息
docker version
#看到运行的镜像
docker images
7.修改国内的镜像地址
cat << EOF > /etc/docker/daemon.json
{
"registry-mirrors": ["https://docker.mirrors.ustc.edu.cn","https://hub-mirror.c.163.com","https://registry.docker-cn.com"],
"exec-opts":["native.cgroupdriver=systemd"]
}
EOF
systemctl daemon-reload
systemctl restart docker
8.安装docker-compose
mkdir /opt/docker
cd /opt/docker
wget https://mirrors.aliyun.com/docker-toolbox/linux/compose/1.21.2/docker-compose-Linux-x86_64
cp -p docker-compose-Linux-x86_64 /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose
docker-compose -v