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Allow docker stats without arguments 

This patch adds the ability to run `docker stats` w/o arguments and get
statistics for all running containers by default. Also add a new
`--all` flag to list statistics for all containers (like `docker ps`).
New running containers are added to the list as they show up also.
Add integration tests for this new behavior.
Docs updated accordingly. Fix missing stuff in man/commandline
reference for `docker stats`.

Signed-off-by: Antonio Murdaca <runcom@redhat.com>
This commit is contained in:
Antonio Murdaca 2015-10-03 14:53:25 +02:00 committed by Tibor Vass
parent f239640a2e
commit 4668b6ed6c
2 changed files with 31 additions and 12 deletions
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25
docs/reference/commandline/stats.md
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@ -10,24 +10,31 @@ parent = "smn_cli"
# stats
Usage: docker stats [OPTIONS] CONTAINER [CONTAINER...]
Usage: docker stats [OPTIONS] [CONTAINER...]
Display a live stream of one or more containers' resource usage statistics
-a, --all=false Show all containers (default shows just running)
--help=false Print usage
--no-stream=false Disable streaming stats and only pull the first result
Running `docker stats` on multiple containers
The `docker stats` command returns a live data stream for running containers. To limit data to one or more specific containers, specify a list of container names or ids separated by a space. You can specify a stopped container but stopped containers do not return any data.
$ docker stats redis1 redis2
If you want more detailed information about a container's resource usage, use the `/containers/(id)/stats` API endpoint.
## Examples
Running `docker stats` on all running containers
$ docker stats
CONTAINER CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O
redis1 0.07% 796 KB / 64 MB 1.21% 788 B / 648 B 3.568 MB / 512 KB
redis2 0.07% 2.746 MB / 64 MB 4.29% 1.266 KB / 648 B 12.4 MB / 0 B
nginx1 0.03% 4.583 MB / 64 MB 6.30% 2.854 KB / 648 B 27.7 MB / 0 B
Running `docker stats` on multiple containers by name and id.
The `docker stats` command will only return a live stream of data for running
containers. Stopped containers will not return any data.
> **Note:**
> If you want more detailed information about a container's resource
> usage, use the API endpoint.
$ docker stats fervent_panini 5acfcb1b4fd1
CONTAINER CPU % MEM USAGE/LIMIT MEM % NET I/O
5acfcb1b4fd1 0.00% 115.2 MB/1.045 GB 11.03% 1.422 kB/648 B
fervent_panini 0.02% 11.08 MB/1.045 GB 1.06% 648 B/648 B

18
man/docker-stats.1.md
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@ -6,15 +6,19 @@ docker-stats - Display a live stream of one or more containers' resource usage s
# SYNOPSIS
**docker stats**
[**-a**|**--all**[=*false*]]
[**--help**]
[**--no-stream**[=*false*]]
CONTAINER [CONTAINER...]
[CONTAINER...]
# DESCRIPTION
Display a live stream of one or more containers' resource usage statistics
# OPTIONS
**-a**, **--all**=*true*|*false*
Show all containers. Only running containers are shown by default. The default is *false*.
**--help**
Print usage statement
@ -23,9 +27,17 @@ Display a live stream of one or more containers' resource usage statistics
# EXAMPLES
Run **docker stats** with multiple containers.
Running `docker stats` on all running containers
$ docker stats redis1 redis2
$ docker stats
CONTAINER CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O
redis1 0.07% 796 KB / 64 MB 1.21% 788 B / 648 B 3.568 MB / 512 KB
redis2 0.07% 2.746 MB / 64 MB 4.29% 1.266 KB / 648 B 12.4 MB / 0 B
nginx1 0.03% 4.583 MB / 64 MB 6.30% 2.854 KB / 648 B 27.7 MB / 0 B
Running `docker stats` on multiple containers by name and id.
$ docker stats fervent_panini 5acfcb1b4fd1
CONTAINER CPU % MEM USAGE/LIMIT MEM % NET I/O
5acfcb1b4fd1 0.00% 115.2 MB/1.045 GB 11.03% 1.422 kB/648 B
fervent_panini 0.02% 11.08 MB/1.045 GB 1.06% 648 B/648 B