Fetch the logs of a container
docker logs [OPTIONS] CONTAINER
| ||Show extra details provided to logs|
| ||Follow log output|
| ||Show logs since timestamp (e.g. 2013-01-02T13:23:37) or relative (e.g. 42m for 42 minutes)|
| || ||Number of lines to show from the end of the logs|
| ||Show timestamps|
API 1.35+ |
Show logs before a timestamp (e.g. 2013-01-02T13:23:37) or relative (e.g. 42m for 42 minutes)
|docker||The base command for the Docker CLI.|
docker logs command batch-retrieves logs present at the time of execution.
Note: this command is only functional for containers that are started with the
For more information about selecting and configuring logging drivers, refer to Configure logging drivers.
docker logs --follow command will continue streaming the new output from the container’s
Passing a negative number or a non-integer to
--tail is invalid and the value is set to
all in that case.
docker logs --timestamps command will add an RFC3339Nano timestamp , for example
2014-09-16T06:17:46.000000000Z, to each log entry. To ensure that the timestamps are aligned the nano-second part of the timestamp will be padded with zero when necessary.
docker logs --details command will add on extra attributes, such as environment variables and labels, provided to
--log-opt when creating the container.
--since option shows only the container logs generated after a given date. You can specify the date as an RFC 3339 date, a UNIX timestamp, or a Go duration string (e.g.
3h). Besides RFC3339 date format you may also use RFC3339Nano,
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 option with either or both of the
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
© 2019 Docker, Inc.
Licensed under the Apache License, Version 2.0.
Docker and the Docker logo are trademarks or registered trademarks of Docker, Inc. in the United States and/or other countries.
Docker, Inc. and other parties may also have trademark rights in other terms used herein.