Mysql单实例安装-docker篇

https://download.docker.com/linux/centos/docker-ce.repo

[root@centos7 ~] yum -y install docker-ce docker-ce-cli containerd.io

[root@centos7 ~]# docker ps --查看docker

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? --docker没有启动

1.3、启动 Docker

[root@centos7 ~]#systemctl enable docker

Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.

[root@centos7 ~]#systemctl start docker

[root@centos7 ~]#systemctl status docker

● docker.service - Docker Application Container Engine

Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)

Active: active (running) since Sat 2021-01-16 18:47:43 EST; 6s ago

Docs: https://docs.docker.com

Main PID: 2435 (dockerd)

Memory: 45.1M

CGroup: /system.slice/docker.service