centos7 安装docker

#personal/blog #program/tech/docker

Uninstall old versions

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

Set up the repository

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

Install Docker Engine

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

Start Docker

sudo systemctl start docker

Run test program

sudo docker run hello-world
optional

如果程序出现如下的结果就代表安装成功：

设置自启动

sudo systemctl enable docker

Install Aliyun mirror

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