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Add documentation for docker stats --format
Signed-off-by: Boaz Shuster <ripcurld.github@gmail.com>
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Boaz Shuster
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3 changed files with 62 additions and 4 deletions
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@ -20,6 +20,7 @@ list of elements they support in their templates:
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- [Docker Log Tag formatting](logging/log_tags.md)
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- [Docker Network Inspect formatting](../reference/commandline/network_inspect.md)
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- [Docker PS formatting](../reference/commandline/ps.md#formatting)
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- [Docker Stats formatting](../reference/commandline/stats.md#formatting)
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- [Docker Volume Inspect formatting](../reference/commandline/volume_inspect.md)
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- [Docker Version formatting](../reference/commandline/version.md#examples)
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@ -23,7 +23,7 @@ Options:
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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.
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If you want more detailed information about a container's resource usage, use the `/containers/(id)/stats` API endpoint.
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If you want more detailed information about a container's resource usage, use the `/containers/(id)/stats` API endpoint.
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## Examples
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@ -38,7 +38,7 @@ Running `docker stats` on all running containers against a Linux daemon.
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Running `docker stats` on multiple containers by name and id against a Linux daemon.
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$ docker stats fervent_panini 5acfcb1b4fd1
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CONTAINER CPU % MEM USAGE/LIMIT MEM % NET I/O
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CONTAINER CPU % MEM USAGE/LIMIT MEM % NET I/O
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5acfcb1b4fd1 0.00% 115.2 MiB/1.045 GiB 11.03% 1.422 kB/648 B
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fervent_panini 0.02% 11.08 MiB/1.045 GiB 1.06% 648 B/648 B
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@ -57,8 +57,53 @@ Running `docker stats` on multiple containers by name and id against a Windows d
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3f214c61ad1d nanoserver "cmd" 2 minutes ago Up 2 minutes big_minsky
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9db7aa4d986d windowsservercore "cmd" 2 minutes ago Up 2 minutes mad_wilson
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09d3bb5b1604 windowsservercore "cmd" 2 minutes ago Up 2 minutes affectionate_easley
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PS E:\> docker stats 3f214c61ad1d mad_wilson
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CONTAINER CPU % PRIV WORKING SET NET I/O BLOCK I/O
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3f214c61ad1d 0.00% 46.25 MiB 76.3 kB / 7.92 kB 10.3 MB / 14.7 MB
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mad_wilson 9.59% 40.09 MiB 27.6 kB / 8.81 kB 17 MB / 20.1 MB
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mad_wilson 9.59% 40.09 MiB 27.6 kB / 8.81 kB 17 MB / 20.1 MB
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## Formatting
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The formatting option (`--format`) pretty prints container output
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using a Go template.
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Valid placeholders for the Go template are listed below:
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Placeholder | Description
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------------ | --------------------------------------------
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`.Container` | Container name or ID
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`.CPUPerc` | CPU percentage
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`.MemUsage` | Memory usage
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`.NetIO` | Network IO
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`.BlockIO` | Block IO
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`.MemPerc` | Memory percentage (Not available on Windows)
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`.PIDs` | Number of PIDs (Not available on Windows)
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When using the `--format` option, the `stats` command either
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outputs the data exactly as the template declares or, when using the
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`table` directive, includes column headers as well.
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The following example uses a template without headers and outputs the
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`Container` and `CPUPerc` entries separated by a colon for all images:
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```bash
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$ docker stats --format "{{.Container}}: {{.CPUPerc}}"
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09d3bb5b1604: 6.61%
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9db7aa4d986d: 9.19%
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3f214c61ad1d: 0.00%
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```
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To list all containers statistics with their name, CPU percentage and memory
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usage in a table format you can use:
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```bash
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$ docker stats --format "table {{.Container}}\t{{.CPUPerc}}\t{{.MemUsage}}"
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CONTAINER CPU % PRIV WORKING SET
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1285939c1fd3 0.07% 796 KiB / 64 MiB
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9c76f7834ae2 0.07% 2.746 MiB / 64 MiB
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d1ea048f04e4 0.03% 4.583 MiB / 64 MiB
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```
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@ -9,6 +9,7 @@ docker-stats - Display a live stream of one or more containers' resource usage s
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[**-a**|**--all**]
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[**--help**]
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[**--no-stream**]
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[**--format[="*TEMPLATE*"]**]
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[CONTAINER...]
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# DESCRIPTION
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@ -25,6 +26,17 @@ Display a live stream of one or more containers' resource usage statistics
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**--no-stream**=*true*|*false*
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Disable streaming stats and only pull the first result, default setting is false.
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**--format**="*TEMPLATE*"
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Pretty-print containers statistics using a Go template.
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Valid placeholders:
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.Container - Container name or ID.
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.CPUPerc - CPU percentage.
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.MemUsage - Memory usage.
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.NetIO - Network IO.
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.BlockIO - Block IO.
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.MemPerc - Memory percentage (Not available on Windows).
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.PIDs - Number of PIDs (Not available on Windows).
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# EXAMPLES
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Running `docker stats` on all running containers
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