コマンドラインからdockerサービスが開始されているかどうかを確認する方法

systemctl status docker

[root@izr86o15kikb3az /]# 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 Thu 2019-10-24 16:05:01 CST; 29s ago Docs: https://docs.docker.com Main PID: 6485 (dockerd) Tasks: 9 Memory: 111.3M CGroup: /system.slice/docker.service └─6485 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock Oct 24 16:05:01 izr86o15kikb3az dockerd[6485]: time="2019-10-24T16:05:01.127523857+08:00" level=info msg="ccResolverWrapper...e=grpc Oct 24 16:05:01 izr86o15kikb3az dockerd[6485]: time="2019-10-24T16:05:01.127533900+08:00" level=info msg="ClientConn switch...e=grpc Oct 24 16:05:01 izr86o15kikb3az dockerd[6485]: time="2019-10-24T16:05:01.218871071+08:00" level=info msg="[graphdriver] usi...rlay2" Oct 24 16:05:01 izr86o15kikb3az dockerd[6485]: time="2019-10-24T16:05:01.233949835+08:00" level=info msg="Loading container...tart." Oct 24 16:05:01 izr86o15kikb3az dockerd[6485]: time="2019-10-24T16:05:01.631635629+08:00" level=info msg="Default bridge (d...dress" Oct 24 16:05:01 izr86o15kikb3az dockerd[6485]: time="2019-10-24T16:05:01.764941881+08:00" level=info msg="Loading containers: done." Oct 24 16:05:01 izr86o15kikb3az dockerd[6485]: time="2019-10-24T16:05:01.775134383+08:00" level=info msg="Docker daemon" co...9.03.4 Oct 24 16:05:01 izr86o15kikb3az dockerd[6485]: time="2019-10-24T16:05:01.775613028+08:00" level=info msg="Daemon has comple...ation" Oct 24 16:05:01 izr86o15kikb3az systemd[1]: Started Docker Application Container Engine. Oct 24 16:05:01 izr86o15kikb3az dockerd[6485]: time="2019-10-24T16:05:01.815780672+08:00" level=info msg="API listen on /va....sock" Hint: Some lines were ellipsized, use -l to show in full.

systemctl start docker

systemctl stop docker