CentOS7.7安装docker

1.背景

想自己部署一套halo，发现需要docker环境，而且docker现在已经用处广泛，所以在CentOS服务器上安装docker

2.步骤

# Uninstall old versions
sudo yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine

# 该目录下不会被remove
rm -rf /var/lib/docker/*

# Install using the rpm repository
# 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

sudo systemctl start docker

sudo docker run hello-world

3.引用

Install Docker Engine on CentOS