环境：centos7，参考官方文档：https://docs.docker.com/insta…第一步：删除旧版本和相关依赖，运行命令：yum remove docker \ docker-client \ docker-client-latest \ docker-common \ docker-latest \ docker-latest-logrotate \ docker-logrotate \ docker-engine第二步，安装依赖，命令：yum install -y yum-utils \ device-mapper-persistent-data \ lvm2第三步，配置稳定的repositories，命令：yum-config-manager \ –add-repo \ https://download.docker.com/linux/centos/docker-ce.repo第四步，安装docker，命令：yum install docker-ce docker-ce-cli containerd.io完成后通过docker version命令看到docker信息：启动：systemctl start docker开机启动：systemctl enable docker接下来安装docker-compose，运行命令：curl -L “https://github.com/docker/compose/releases/download/1.23.2/docker-compose-$(uname -s)-$(uname -m)” -o /usr/local/bin/docker-compose给docker-composem，运行命令：chmod +x /usr/local/bin/docker-compose检查，运行docker-compose –version，如下：至此，docker和docker-compose安装成功；docker参考文档：https://docs.docker.com/get-s…docker-compose文档：https://docs.docker.com/compo…