Docker安装

1、卸载老版本

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

2、安装环境依赖

yum install -y yum-utils

3、配置国内镜像源

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

4、安装docker引擎

yum install docker-ce docker-ce-cli containerd.io

5、配置镜像加速器

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://p1tlsqnt.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

6、启动docker

systemctl start docker

7、验证

docker run hello-world