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moby--moby/man/docker-events.1.md
Akihiro Suda 5af5a1be62 add docker events --format
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
2016-09-15 09:55:29 +00:00

5.8 KiB

% DOCKER(1) Docker User Manuals % Docker Community % JUNE 2014

NAME

docker-events - Get real time events from the server

SYNOPSIS

docker events [--help] [-f|--filter[=[]]] [--since[=SINCE]] [--until[=UNTIL]] [--format[=FORMAT]]

DESCRIPTION

Get event information from the Docker daemon. Information can include historical information and real-time information.

Docker containers will report the following events:

attach, commit, copy, create, destroy, detach, die, exec_create, exec_detach, exec_start, export, kill, oom, pause, rename, resize, restart, start, stop, top, unpause, update

Docker images report the following events:

delete, import, load, pull, push, save, tag, untag

Docker volumes report the following events:

create, mount, unmount, destroy

Docker networks report the following events:

create, connect, disconnect, destroy

OPTIONS

--help Print usage statement

-f, --filter=[] Provide filter values (i.e., 'event=stop')

--since="" Show all events created since timestamp

--until="" Stream events until this timestamp

--format="" Format the output using the given go template

The --since and --until parameters can be Unix timestamps, date formatted timestamps, or Go duration strings (e.g. 10m, 1h30m) computed relative to the client machine's time. If you do not provide the --since option, the command returns only new and/or live events. 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.

EXAMPLES

Listening for Docker events

After running docker events a container 786d698004576 is started and stopped (The container name has been shortened in the output below):

# docker events
2015-01-28T20:21:31.000000000-08:00 59211849bc10: (from whenry/testimage:latest) start
2015-01-28T20:21:31.000000000-08:00 59211849bc10: (from whenry/testimage:latest) die
2015-01-28T20:21:32.000000000-08:00 59211849bc10: (from whenry/testimage:latest) stop

Listening for events since a given date

Again the output container IDs have been shortened for the purposes of this document:

# docker events --since '2015-01-28'
2015-01-28T20:25:38.000000000-08:00 c21f6c22ba27: (from whenry/testimage:latest) create
2015-01-28T20:25:38.000000000-08:00 c21f6c22ba27: (from whenry/testimage:latest) start
2015-01-28T20:25:39.000000000-08:00 c21f6c22ba27: (from whenry/testimage:latest) create
2015-01-28T20:25:39.000000000-08:00 c21f6c22ba27: (from whenry/testimage:latest) start
2015-01-28T20:25:40.000000000-08:00 c21f6c22ba27: (from whenry/testimage:latest) die
2015-01-28T20:25:42.000000000-08:00 c21f6c22ba27: (from whenry/testimage:latest) stop
2015-01-28T20:25:45.000000000-08:00 c21f6c22ba27: (from whenry/testimage:latest) start
2015-01-28T20:25:45.000000000-08:00 c21f6c22ba27: (from whenry/testimage:latest) die
2015-01-28T20:25:46.000000000-08:00 c21f6c22ba27: (from whenry/testimage:latest) stop

The following example outputs all events that were generated in the last 3 minutes, relative to the current time on the client machine:

# docker events --since '3m'
2015-05-12T11:51:30.999999999Z07:00  4386fb97867d: (from ubuntu-1:14.04) die
2015-05-12T15:52:12.999999999Z07:00  4386fb97867d: (from ubuntu-1:14.04) stop
2015-05-12T15:53:45.999999999Z07:00  7805c1d35632: (from redis:2.8) die
2015-05-12T15:54:03.999999999Z07:00  7805c1d35632: (from redis:2.8) stop

If you do not provide the --since option, the command returns only new and/or live events.

Format

If a format (--format) is specified, the given template will be executed instead of the default format. Go's text/template package describes all the details of the format.

# docker events --filter 'type=container' --format 'Type={{.Type}}  Status={{.Status}}  ID={{.ID}}'
Type=container  Status=create  ID=2ee349dac409e97974ce8d01b70d250b85e0ba8189299c126a87812311951e26
Type=container  Status=attach  ID=2ee349dac409e97974ce8d01b70d250b85e0ba8189299c126a87812311951e26
Type=container  Status=start  ID=2ee349dac409e97974ce8d01b70d250b85e0ba8189299c126a87812311951e26
Type=container  Status=resize  ID=2ee349dac409e97974ce8d01b70d250b85e0ba8189299c126a87812311951e26
Type=container  Status=die  ID=2ee349dac409e97974ce8d01b70d250b85e0ba8189299c126a87812311951e26
Type=container  Status=destroy  ID=2ee349dac409e97974ce8d01b70d250b85e0ba8189299c126a87812311951e26

If a format is set to {{json .}}, the events are streamed as valid JSON Lines. For information about JSON Lines, please refer to http://jsonlines.org/ .

# docker events --format '{{json .}}'
{"status":"create","id":"196016a57679bf42424484918746a9474cd905dd993c4d0f4..
{"status":"attach","id":"196016a57679bf42424484918746a9474cd905dd993c4d0f4..
{"Type":"network","Action":"connect","Actor":{"ID":"1b50a5bf755f6021dfa78e..
{"status":"start","id":"196016a57679bf42424484918746a9474cd905dd993c4d0f42..
{"status":"resize","id":"196016a57679bf42424484918746a9474cd905dd993c4d0f4..

HISTORY

April 2014, Originally compiled by William Henry (whenry at redhat dot com) based on docker.com source material and internal work. June 2014, updated by Sven Dowideit SvenDowideit@home.org.au June 2015, updated by Brian Goff cpuguy83@gmail.com October 2015, updated by Mike Brown mikebrow@gmail.com