Commandes Linux : docker service logs

DOCKER SERVICE LOGS

Usage:	docker service logs [OPTIONS] SERVICE|TASK

Fetch the logs of a service or task

Options:
      --details        Show extra details provided to logs
  -f, --follow         Follow log output
      --no-resolve     Do not map IDs to Names in output
      --no-task-ids    Do not include task IDs in output
      --no-trunc       Do not truncate output
      --raw            Do not neatly format logs
      --since string   Show logs since timestamp (e.g. 2013-01-02T13:23:37) or relative (e.g. 42m for 42 minutes)
      --tail string    Number of lines to show from the end of the logs (default "all")
  -t, --timestamps     Show timestamps

Afficher les logs relatifs à un service ou une tâche

docker service logs [OPTIONS] service|task

ex :
Ci-dessous nous créons un service constitué de 6 tâches réparties sur 4 nodes.

$ docker service logs vote
vote.3.m6vav0b3geqf@node1    | [2018-10-29 01:37:21 +0000] [1] [INFO] Starting gunicorn 19.6.0
vote.5.j88qt3ovckgp@node1    | [2018-10-29 01:37:22 +0000] [1] [INFO] Starting gunicorn 19.6.0
vote.1.ogafxdmgkmsn@node1    | [2018-10-29 01:37:22 +0000] [1] [INFO] Starting gunicorn 19.6.0
vote.1.ogafxdmgkmsn@node1    | [2018-10-29 01:37:22 +0000] [1] [INFO] Listening at: http://0.0.0.0:80 (1)
vote.3.m6vav0b3geqf@node1    | [2018-10-29 01:37:21 +0000] [1] [INFO] Listening at: http://0.0.0.0:80 (1)
vote.5.j88qt3ovckgp@node1    | [2018-10-29 01:37:22 +0000] [1] [INFO] Listening at: http://0.0.0.0:80 (1)
vote.5.j88qt3ovckgp@node1    | [2018-10-29 01:37:22 +0000] [1] [INFO] Using worker: sync
vote.1.ogafxdmgkmsn@node1    | [2018-10-29 01:37:22 +0000] [1] [INFO] Using worker: sync
[...]
$ docker service logs ogafxdmgkmsn
vote.1.ogafxdmgkmsn@node1    | [2018-10-29 01:37:22 +0000] [1] [INFO] Starting gunicorn 19.6.0
vote.1.ogafxdmgkmsn@node1    | [2018-10-29 01:37:22 +0000] [1] [INFO] Listening at: http://0.0.0.0:80 (1)
vote.1.ogafxdmgkmsn@node1    | [2018-10-29 01:37:22 +0000] [1] [INFO] Using worker: sync
vote.1.ogafxdmgkmsn@node1    | [2018-10-29 01:37:22 +0000] [11] [INFO] Booting worker with pid: 11
vote.1.ogafxdmgkmsn@node1    | [2018-10-29 01:37:22 +0000] [12] [INFO] Booting worker with pid: 12
vote.1.ogafxdmgkmsn@node1    | [2018-10-29 01:37:22 +0000] [13] [INFO] Booting worker with pid: 13
vote.1.ogafxdmgkmsn@node1    | [2018-10-29 01:37:22 +0000] [14] [INFO] Booting worker with pid: 14

Afficher les logs en mode follow (-f)

docker service logs [OPTIONS] -f service|task