docs: docker inspect: reformat with prettier

Signed-off-by: David Karlsson <david.karlsson@docker.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 802c53fa9d)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
David Karlsson 2022-10-28 10:57:23 +02:00 committed by Sebastiaan van Stijn
parent 42eca75740
commit 226a2fd64e
No known key found for this signature in database
GPG Key ID: 76698F39D527CE8C
1 changed files with 14 additions and 17 deletions

View File

@ -29,15 +29,15 @@ By default, `docker inspect` will render results in a JSON array.
If a format is specified, the given template will be executed for each result.
Go's [text/template](https://golang.org/pkg/text/template/) package
describes all the details of the format.
Go's [text/template](https://golang.org/pkg/text/template/) package describes
all the details of the format.
## Specify target type (--type)
`--type container|image|node|network|secret|service|volume|task|plugin`
The `docker inspect` command matches any type of object by either ID or name.
In some cases multiple type of objects (for example, a container and a volume)
The `docker inspect` command matches any type of object by either ID or name. In
some cases multiple type of objects (for example, a container and a volume)
exist with the same name, making the result ambiguous.
To restrict `docker inspect` to a specific type of object, use the `--type`
@ -80,8 +80,7 @@ $ docker inspect --format='{{.Config.Image}}' $INSTANCE_ID
### List all port bindings
You can loop over arrays and maps in the results to produce simple text
output:
You can loop over arrays and maps in the results to produce simple text output:
```console
$ docker inspect --format='{{range $p, $conf := .NetworkSettings.Ports}} {{$p}} -> {{(index $conf 0).HostPort}} {{end}}' $INSTANCE_ID
@ -89,13 +88,12 @@ $ docker inspect --format='{{range $p, $conf := .NetworkSettings.Ports}} {{$p}}
### Find a specific port mapping
The `.Field` syntax doesn't work when the field name begins with a
number, but the template language's `index` function does. The
`.NetworkSettings.Ports` section contains a map of the internal port
mappings to a list of external address/port objects. To grab just the
numeric public port, you use `index` to find the specific port map, and
then `index` 0 contains the first object inside of that. Then we ask for
the `HostPort` field to get the public address.
The `.Field` syntax doesn't work when the field name begins with a number, but
the template language's `index` function does. The `.NetworkSettings.Ports`
section contains a map of the internal port mappings to a list of external
address/port objects. To grab just the numeric public port, you use `index` to
find the specific port map, and then `index` 0 contains the first object inside
of that. Then we ask for the `HostPort` field to get the public address.
```console
$ docker inspect --format='{{(index (index .NetworkSettings.Ports "8787/tcp") 0).HostPort}}' $INSTANCE_ID
@ -103,10 +101,9 @@ $ docker inspect --format='{{(index (index .NetworkSettings.Ports "8787/tcp") 0)
### Get a subsection in JSON format
If you request a field which is itself a structure containing other
fields, by default you get a Go-style dump of the inner values.
Docker adds a template function, `json`, which can be applied to get
results in JSON format.
If you request a field which is itself a structure containing other fields, by
default you get a Go-style dump of the inner values. Docker adds a template
function, `json`, which can be applied to get results in JSON format.
```console
$ docker inspect --format='{{json .Config}}' $INSTANCE_ID