how-to-install-docker-on-ubuntu-20-04_systemctl_status.bash

● docker.service - Docker Application Container Engine
     Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
     Active: active (running) since Sun 2020-05-03 10:07:04 UTC; 58s ago
TriggeredBy: ● docker.socket
       Docs: https://docs.docker.com
   Main PID: 4132 (dockerd)
      Tasks: 8
     Memory: 39.2M
     CGroup: /system.slice/docker.service
             └─4132 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

May 03 10:07:04 ubuntu dockerd[4132]: time="2020-05-03T10:07:04.551724122Z" level=warning msg="Your kernel does not support swap memory limit"
May 03 10:07:04 ubuntu dockerd[4132]: time="2020-05-03T10:07:04.552108226Z" level=warning msg="Your kernel does not support cgroup blkio weight"
May 03 10:07:04 ubuntu dockerd[4132]: time="2020-05-03T10:07:04.552263337Z" level=warning msg="Your kernel does not support cgroup blkio weight_device"
May 03 10:07:04 ubuntu dockerd[4132]: time="2020-05-03T10:07:04.552742555Z" level=info msg="Loading containers: start."
May 03 10:07:04 ubuntu dockerd[4132]: time="2020-05-03T10:07:04.706027140Z" level=info msg="Default bridge (docker0) is assigned with an IP address 172.17.0.0/16. Daemon option --bip can be used to set a preferred IP address"
May 03 10:07:04 ubuntu dockerd[4132]: time="2020-05-03T10:07:04.787975604Z" level=info msg="Loading containers: done."
May 03 10:07:04 ubuntu dockerd[4132]: time="2020-05-03T10:07:04.820931732Z" level=info msg="Docker daemon" commit=afacb8b7f0 graphdriver(s)=overlay2 version=19.03.8
May 03 10:07:04 ubuntu dockerd[4132]: time="2020-05-03T10:07:04.821373143Z" level=info msg="Daemon has completed initialization"
May 03 10:07:04 ubuntu systemd[1]: Started Docker Application Container Engine.
May 03 10:07:04 ubuntu dockerd[4132]: time="2020-05-03T10:07:04.869610410Z" level=info msg="API listen on /run/docker.sock"