docker 进击之路1 Centos 7 安装docker
1 官网安装手册地址 https://docs.docker.com/engine/install/centos/
2 卸载旧版本
sudo yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
3 安装yum-utils
软件包
sudo yum install -y yum-utils
sudo yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
4 安装最新版本的Docker Engine和容器
sudo yum install docker-ce docker-ce-cli containerd.io
5 启动Docker
sudo systemctl start docker
6
通过运行hello-world
映像来验证是否正确安装了Docker Engine 。sudo docker run hello-world
![](https://img2020.cnblogs.com/blog/1409922/202009/1409922-20200925111041102-1931655803.png)
7 查看docker版本信息
docker version
![](https://img2020.cnblogs.com/blog/1409922/202009/1409922-20200925111352543-1797584153.png)