$ systemctl status docker.service
● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
   Active: activating (auto-restart) (Result: exit-code) since Thu 2021-02-25 04:59:07 UTC; 918ms ago
     Docs: https://docs.docker.com
  Process: 1285 ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock (code=exited, status=1/FAILURE)
 Main PID: 1285 (code=exited, status=1/FAILURE)

Feb 25 04:59:07 yasnoponyatno systemd[1]: docker.service: Main process exited, code=exited, status=1/FAILURE
Feb 25 04:59:07 yasnoponyatno systemd[1]: docker.service: Failed with result 'exit-code'.
Feb 25 04:59:07 yasnoponyatno systemd[1]: Failed to start Docker Application Container Engine.

$ journalctl -xe
Feb 25 04:59:09 yasnoponyatno systemd[1]: docker.service: Main process exited, code=exited, status=1/FAILURE
Feb 25 04:59:09 yasnoponyatno systemd[1]: docker.service: Failed with result 'exit-code'.
-- Subject: Unit failed
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- The unit docker.service has entered the 'failed' state with result 'exit-code'.
Feb 25 04:59:09 yasnoponyatno systemd[1]: Failed to start Docker Application Container Engine.
-- Subject: Unit docker.service has failed
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- Unit docker.service has failed.
--
-- The result is failed.
Feb 25 04:59:11 yasnoponyatno systemd[1]: docker.service: Service RestartSec=2s expired, scheduling restart.
Feb 25 04:59:11 yasnoponyatno systemd[1]: docker.service: Scheduled restart job, restart counter is at 3.
-- Subject: Automatic restarting of a unit has been scheduled
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- Automatic restarting of the unit docker.service has been scheduled, as the result for
-- the configured Restart= setting for the unit.
Feb 25 04:59:11 yasnoponyatno systemd[1]: Stopped Docker Application Container Engine.
-- Subject: Unit docker.service has finished shutting down
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- Unit docker.service has finished shutting down.
Feb 25 04:59:11 yasnoponyatno systemd[1]: docker.service: Start request repeated too quickly.
Feb 25 04:59:11 yasnoponyatno systemd[1]: docker.service: Failed with result 'exit-code'.
-- Subject: Unit failed
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- The unit docker.service has entered the 'failed' state with result 'exit-code'.
Feb 25 04:59:11 yasnoponyatno systemd[1]: Failed to start Docker Application Container Engine.
-- Subject: Unit docker.service has failed
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- Unit docker.service has failed.
--
-- The result is failed.
Feb 25 04:59:11 yasnoponyatno systemd[1]: docker.socket: Failed with result 'service-start-limit-hit'.
-- Subject: Unit failed
-- Defined-By: systemd
-- Support: https://access.redhat.com/support
--
-- The unit docker.socket has entered the 'failed' state with result 'service-start-limit-hit'.

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