[安装配置] Linux docker 安装

官方安装文档地址：https://docs.docker.com/engine/install/centos/

1.卸载旧版本docker

 sudo yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine

2.下载软件包并设置储存库

 sudo yum install -y yum-utils

 sudo yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

3.安装docker

 sudo yum install docker-ce docker-ce-cli containerd.io docker-compose-plugin

4.启动docker

sudo systemctl start docker sudo mkdir -p /etc/docker

查看版本：docker -v

查看已安装镜像：docker images

设置开机自启： systemctl enable docker

5.配置镜像加速器

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://zfqkbu7u.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker