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docs: improve formatting and highlighting of docker ps reference

this improves the formatting, and code-highlighting
of the `docker ps` reference page, and wraps sentences
to 80 chars

also adds single quotes around the formatting
example for labels.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2016-07-21 12:27:39 +02:00
parent bdf4d9c1cd
commit 07ef0a37f8
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@ -38,15 +38,24 @@ Options:
Running `docker ps --no-trunc` showing 2 linked containers.
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4c01db0b339c ubuntu:12.04 bash 17 seconds ago Up 16 seconds 3300-3310/tcp webapp
d7886598dbe2 crosbymichael/redis:latest /redis-server --dir 33 minutes ago Up 33 minutes 6379/tcp redis,webapp/db
```bash
$ docker ps
`docker ps` will show only running containers by default. To see all containers:
`docker ps -a`
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4c01db0b339c ubuntu:12.04 bash 17 seconds ago Up 16 seconds 3300-3310/tcp webapp
d7886598dbe2 crosbymichael/redis:latest /redis-server --dir 33 minutes ago Up 33 minutes 6379/tcp redis,webapp/db
```
`docker ps` will group exposed ports into a single range if possible. E.g., a container that exposes TCP ports `100, 101, 102` will display `100-102/tcp` in the `PORTS` column.
The `docker ps` command only shows running containers by default. To see all
containers, use the `-a` (or `--all`) flag:
```bash
$ docker ps -a
```
`docker ps` groups exposed ports into a single range if possible. E.g., a
container that exposes TCP ports `100, 101, 102` displays `100-102/tcp` in
the `PORTS` column.
## Filtering
@ -74,16 +83,22 @@ value.
The following filter matches containers with the `color` label regardless of its value.
$ docker ps --filter "label=color"
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
673394ef1d4c busybox "top" 47 seconds ago Up 45 seconds nostalgic_shockley
d85756f57265 busybox "top" 52 seconds ago Up 51 seconds high_albattani
```bash
$ docker ps --filter "label=color"
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
673394ef1d4c busybox "top" 47 seconds ago Up 45 seconds nostalgic_shockley
d85756f57265 busybox "top" 52 seconds ago Up 51 seconds high_albattani
```
The following filter matches containers with the `color` label with the `blue` value.
$ docker ps --filter "label=color=blue"
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d85756f57265 busybox "top" About a minute ago Up About a minute high_albattani
```bash
$ docker ps --filter "label=color=blue"
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
d85756f57265 busybox "top" About a minute ago Up About a minute high_albattani
```
#### Name
@ -91,49 +106,66 @@ The `name` filter matches on all or part of a container's name.
The following filter matches all containers with a name containing the `nostalgic_stallman` string.
$ docker ps --filter "name=nostalgic_stallman"
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9b6247364a03 busybox "top" 2 minutes ago Up 2 minutes nostalgic_stallman
```bash
$ docker ps --filter "name=nostalgic_stallman"
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9b6247364a03 busybox "top" 2 minutes ago Up 2 minutes nostalgic_stallman
```
You can also filter for a substring in a name as this shows:
$ docker ps --filter "name=nostalgic"
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
715ebfcee040 busybox "top" 3 seconds ago Up 1 seconds i_am_nostalgic
9b6247364a03 busybox "top" 7 minutes ago Up 7 minutes nostalgic_stallman
673394ef1d4c busybox "top" 38 minutes ago Up 38 minutes nostalgic_shockley
```bash
$ docker ps --filter "name=nostalgic"
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
715ebfcee040 busybox "top" 3 seconds ago Up 1 seconds i_am_nostalgic
9b6247364a03 busybox "top" 7 minutes ago Up 7 minutes nostalgic_stallman
673394ef1d4c busybox "top" 38 minutes ago Up 38 minutes nostalgic_shockley
```
#### Exited
The `exited` filter matches containers by exist status code. For example, to filter for containers
that have exited successfully:
The `exited` filter matches containers by exist status code. For example, to
filter for containers that have exited successfully:
$ docker ps -a --filter 'exited=0'
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
ea09c3c82f6e registry:latest /srv/run.sh 2 weeks ago Exited (0) 2 weeks ago 127.0.0.1:5000->5000/tcp desperate_leakey
106ea823fe4e fedora:latest /bin/sh -c 'bash -l' 2 weeks ago Exited (0) 2 weeks ago determined_albattani
48ee228c9464 fedora:20 bash 2 weeks ago Exited (0) 2 weeks ago tender_torvalds
```bash
$ docker ps -a --filter 'exited=0'
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
ea09c3c82f6e registry:latest /srv/run.sh 2 weeks ago Exited (0) 2 weeks ago 127.0.0.1:5000->5000/tcp desperate_leakey
106ea823fe4e fedora:latest /bin/sh -c 'bash -l' 2 weeks ago Exited (0) 2 weeks ago determined_albattani
48ee228c9464 fedora:20 bash 2 weeks ago Exited (0) 2 weeks ago tender_torvalds
```
#### Status
The `status` filter matches containers by status. You can filter using `created`, `restarting`, `running`, `paused`, `exited` and `dead`. For example, to filter for `running` containers:
The `status` filter matches containers by status. You can filter using
`created`, `restarting`, `running`, `paused`, `exited` and `dead`. For example,
to filter for `running` containers:
$ docker ps --filter status=running
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
715ebfcee040 busybox "top" 16 minutes ago Up 16 minutes i_am_nostalgic
d5c976d3c462 busybox "top" 23 minutes ago Up 23 minutes top
9b6247364a03 busybox "top" 24 minutes ago Up 24 minutes nostalgic_stallman
```bash
$ docker ps --filter status=running
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
715ebfcee040 busybox "top" 16 minutes ago Up 16 minutes i_am_nostalgic
d5c976d3c462 busybox "top" 23 minutes ago Up 23 minutes top
9b6247364a03 busybox "top" 24 minutes ago Up 24 minutes nostalgic_stallman
```
To filter for `paused` containers:
$ docker ps --filter status=paused
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
673394ef1d4c busybox "top" About an hour ago Up About an hour (Paused) nostalgic_shockley
```bash
$ docker ps --filter status=paused
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
673394ef1d4c busybox "top" About an hour ago Up About an hour (Paused) nostalgic_shockley
```
#### Ancestor
The `ancestor` filter matches containers based on its image or a descendant of it. The filter supports the
following image representation:
The `ancestor` filter matches containers based on its image or a descendant of
it. The filter supports the following image representation:
- image
- image:tag
@ -141,74 +173,99 @@ following image representation:
- short-id
- full-id
If you don't specify a `tag`, the `latest` tag is used. For example, to filter for containers that use the
latest `ubuntu` image:
If you don't specify a `tag`, the `latest` tag is used. For example, to filter
for containers that use the latest `ubuntu` image:
$ docker ps --filter ancestor=ubuntu
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
919e1179bdb8 ubuntu-c1 "top" About a minute ago Up About a minute admiring_lovelace
5d1e4a540723 ubuntu-c2 "top" About a minute ago Up About a minute admiring_sammet
82a598284012 ubuntu "top" 3 minutes ago Up 3 minutes sleepy_bose
bab2a34ba363 ubuntu "top" 3 minutes ago Up 3 minutes focused_yonath
```bash
$ docker ps --filter ancestor=ubuntu
Match containers based on the `ubuntu-c1` image which, in this case, is a child of `ubuntu`:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
919e1179bdb8 ubuntu-c1 "top" About a minute ago Up About a minute admiring_lovelace
5d1e4a540723 ubuntu-c2 "top" About a minute ago Up About a minute admiring_sammet
82a598284012 ubuntu "top" 3 minutes ago Up 3 minutes sleepy_bose
bab2a34ba363 ubuntu "top" 3 minutes ago Up 3 minutes focused_yonath
```
$ docker ps --filter ancestor=ubuntu-c1
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
919e1179bdb8 ubuntu-c1 "top" About a minute ago Up About a minute admiring_lovelace
Match containers based on the `ubuntu-c1` image which, in this case, is a child
of `ubuntu`:
```bash
$ docker ps --filter ancestor=ubuntu-c1
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
919e1179bdb8 ubuntu-c1 "top" About a minute ago Up About a minute admiring_lovelace
```
Match containers based on the `ubuntu` version `12.04.5` image:
$ docker ps --filter ancestor=ubuntu:12.04.5
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
82a598284012 ubuntu:12.04.5 "top" 3 minutes ago Up 3 minutes sleepy_bose
```bash
$ docker ps --filter ancestor=ubuntu:12.04.5
The following matches containers based on the layer `d0e008c6cf02` or an image that have this layer
in it's layer stack.
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
82a598284012 ubuntu:12.04.5 "top" 3 minutes ago Up 3 minutes sleepy_bose
```
$ docker ps --filter ancestor=d0e008c6cf02
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
82a598284012 ubuntu:12.04.5 "top" 3 minutes ago Up 3 minutes sleepy_bose
The following matches containers based on the layer `d0e008c6cf02` or an image
that have this layer in it's layer stack.
```bash
$ docker ps --filter ancestor=d0e008c6cf02
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
82a598284012 ubuntu:12.04.5 "top" 3 minutes ago Up 3 minutes sleepy_bose
```
#### Before
The `before` filter shows only containers created before the container with given id or name. For example,
having these containers created:
The `before` filter shows only containers created before the container with
given id or name. For example, having these containers created:
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9c3527ed70ce busybox "top" 14 seconds ago Up 15 seconds desperate_dubinsky
4aace5031105 busybox "top" 48 seconds ago Up 49 seconds focused_hamilton
6e63f6ff38b0 busybox "top" About a minute ago Up About a minute distracted_fermat
```bash
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9c3527ed70ce busybox "top" 14 seconds ago Up 15 seconds desperate_dubinsky
4aace5031105 busybox "top" 48 seconds ago Up 49 seconds focused_hamilton
6e63f6ff38b0 busybox "top" About a minute ago Up About a minute distracted_fermat
```
Filtering with `before` would give:
$ docker ps -f before=9c3527ed70ce
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4aace5031105 busybox "top" About a minute ago Up About a minute focused_hamilton
6e63f6ff38b0 busybox "top" About a minute ago Up About a minute distracted_fermat
```bash
$ docker ps -f before=9c3527ed70ce
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4aace5031105 busybox "top" About a minute ago Up About a minute focused_hamilton
6e63f6ff38b0 busybox "top" About a minute ago Up About a minute distracted_fermat
```
#### Since
The `since` filter shows only containers created since the container with given id or name. For example,
with the same containers as in `before` filter:
The `since` filter shows only containers created since the container with given
id or name. For example, with the same containers as in `before` filter:
$ docker ps -f since=6e63f6ff38b0
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9c3527ed70ce busybox "top" 10 minutes ago Up 10 minutes desperate_dubinsky
4aace5031105 busybox "top" 10 minutes ago Up 10 minutes focused_hamilton
```bash
$ docker ps -f since=6e63f6ff38b0
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9c3527ed70ce busybox "top" 10 minutes ago Up 10 minutes desperate_dubinsky
4aace5031105 busybox "top" 10 minutes ago Up 10 minutes focused_hamilton
```
#### Volume
The `volume` filter shows only containers that mount a specific volume or have a volume mounted in a specific path:
The `volume` filter shows only containers that mount a specific volume or have
a volume mounted in a specific path:
$ docker ps --filter volume=remote-volume --format "table {{.ID}}\t{{.Mounts}}"
CONTAINER ID MOUNTS
9c3527ed70ce remote-volume
```bash
$ docker ps --filter volume=remote-volume --format "table {{.ID}}\t{{.Mounts}}"
CONTAINER ID MOUNTS
9c3527ed70ce remote-volume
$ docker ps --filter volume=/data --format "table {{.ID}}\t{{.Mounts}}"
CONTAINER ID MOUNTS
9c3527ed70ce remote-volume
$ docker ps --filter volume=/data --format "table {{.ID}}\t{{.Mounts}}"
CONTAINER ID MOUNTS
9c3527ed70ce remote-volume
```
#### Network
@ -223,6 +280,7 @@ $ docker run -d --net=net1 --name=test1 ubuntu top
$ docker run -d --net=net2 --name=test2 ubuntu top
$ docker ps --filter network=net1
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9d4893ed80fe ubuntu "top" 10 minutes ago Up 10 minutes test1
```
@ -233,21 +291,24 @@ the network id as a filter;
```bash
$ docker network inspect --format "{{.ID}}" net1
8c0b4110ae930dbe26b258de9bc34a03f98056ed6f27f991d32919bfe401d7c5
$ docker ps --filter network=8c0b4110ae930dbe26b258de9bc34a03f98056ed6f27f991d32919bfe401d7c5
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9d4893ed80fe ubuntu "top" 10 minutes ago Up 10 minutes test1
```
## Formatting
The formatting option (`--format`) will pretty-print container output using a Go template.
The formatting option (`--format`) pretty-prints container output using a Go
template.
Valid placeholders for the Go template are listed below:
Placeholder | Description
---- | ----
--------------|----------------------------------------------------------------------------------------------------
`.ID` | Container ID
`.Image` | Image ID
`.Command` | Quoted command
@ -258,26 +319,33 @@ Placeholder | Description
`.Size` | Container disk size.
`.Names` | Container names.
`.Labels` | All labels assigned to the container.
`.Label` | Value of a specific label for this container. For example `{{.Label "com.docker.swarm.cpu"}}`
`.Label` | Value of a specific label for this container. For example `'{{.Label "com.docker.swarm.cpu"}}'`
`.Mounts` | Names of the volumes mounted in this container.
When using the `--format` option, the `ps` command will either output the data exactly as the template
declares or, when using the `table` directive, will include column headers as well.
When using the `--format` option, the `ps` command will either output the data
exactly as the template declares or, when using the `table` directive, includes
column headers as well.
The following example uses a template without headers and outputs the `ID` and `Command`
entries separated by a colon for all running containers:
The following example uses a template without headers and outputs the `ID` and
`Command` entries separated by a colon for all running containers:
$ docker ps --format "{{.ID}}: {{.Command}}"
a87ecb4f327c: /bin/sh -c #(nop) MA
01946d9d34d8: /bin/sh -c #(nop) MA
c1d3b0166030: /bin/sh -c yum -y up
41d50ecd2f57: /bin/sh -c #(nop) MA
```bash
$ docker ps --format "{{.ID}}: {{.Command}}"
a87ecb4f327c: /bin/sh -c #(nop) MA
01946d9d34d8: /bin/sh -c #(nop) MA
c1d3b0166030: /bin/sh -c yum -y up
41d50ecd2f57: /bin/sh -c #(nop) MA
```
To list all running containers with their labels in a table format you can use:
$ docker ps --format "table {{.ID}}\t{{.Labels}}"
CONTAINER ID LABELS
a87ecb4f327c com.docker.swarm.node=ubuntu,com.docker.swarm.storage=ssd
01946d9d34d8
c1d3b0166030 com.docker.swarm.node=debian,com.docker.swarm.cpu=6
41d50ecd2f57 com.docker.swarm.node=fedora,com.docker.swarm.cpu=3,com.docker.swarm.storage=ssd
```bash
$ docker ps --format "table {{.ID}}\t{{.Labels}}"
CONTAINER ID LABELS
a87ecb4f327c com.docker.swarm.node=ubuntu,com.docker.swarm.storage=ssd
01946d9d34d8
c1d3b0166030 com.docker.swarm.node=debian,com.docker.swarm.cpu=6
41d50ecd2f57 com.docker.swarm.node=fedora,com.docker.swarm.cpu=3,com.docker.swarm.storage=ssd
```