DOCKER(1)DOCKER(1)
NAME
docker-container-logs - Fetch the logs of a container
SYNOPSIS
docker container logs [OPTIONS] CONTAINER
DESCRIPTION
The docker container logs command batch-retrieves whatever logs are
present for a container at the time of execution. This does not
guarantee execution order when combined with a docker run (i.e., your
run may not have generated any logs at the time you execute docker
container logs).
The docker container logs --follow command combines commands docker
container logs and docker attach. It will first return all logs from
the beginning and then continue streaming new output from the
container's stdout and stderr.
Warning: This command works only for the json-file or journald logging
drivers.
The --since and --until options can be Unix timestamps, date formatted
timestamps, or Go duration strings (e.g. 10m, 1h30m) computed relative
to the client machine's time. Supported formats for date formatted time
stamps include RFC3339Nano, RFC3339, 2006-01-02T15:04:05,
2006-01-02T15:04:05.999999999, 2006-01-02Z07:00, and 2006-01-02. The
local timezone on the client will be used if you do not provide either
a Z or a +-00:00 timezone offset at the end of the timestamp. When
providing Unix timestamps enter seconds[.nanoseconds], where seconds is
the number of seconds that have elapsed since January 1, 1970 (midnight
UTC/GMT), not counting leap seconds (aka Unix epoch or Unix time), and
the optional .nanoseconds field is a fraction of a second no more than
nine digits long. You can combine the --since or --until options with
either or both of the --follow or --tail options.
The docker container logs --details command will add on extra
attributes, such as environment variables and labels, provided to
--log-opt when creating the container.
In order to retrieve logs before a specific point in time, run:
$ docker run --name test -d busybox sh -c "while true; do $(echo date); sleep 1; done"
$ date
Tue 14 Nov 2017 16:40:00 CET
$ docker logs -f --until=2s
Tue 14 Nov 2017 16:40:00 CET
Tue 14 Nov 2017 16:40:01 CET
Tue 14 Nov 2017 16:40:02 CET
OPTIONS
--details[=false]
Show extra details provided to logs
-f, --follow[=false]
Follow log output
-h, --help[=false]
help for logs
--since=""
Show logs since timestamp (e.g. 2013-01-02T13:23:37) or relative
(e.g. 42m for 42 minutes)
--tail="all"
Number of lines to show from the end of the logs
-t, --timestamps[=false]
Show timestamps
--until=""
Show logs before a timestamp (e.g. 2013-01-02T13:23:37) or relative
(e.g. 42m for 42 minutes)
SEE ALSO
docker-container(1)
Docker Community Jun 2020 DOCKER(1)