[Archery] Add a docker info command

[asfimport]

You can now list the available docker builds using archery docker images.
However, to get details about a particular build, you have to dive into the docker-compose.yml file.

It would be nice if there were a command such as archery docker info <image-name> that would give some information about the build, such as:

• the possible parameters for the image (such as ARCH, UBUNTU...)
• the command(s) executed by default when running the image

Reporter: Antoine Pitrou / @pitrou
Assignee: Raúl Cumplido / @raulcd

PRs and other links:

• GitHub Pull Request #14345

_{Note: This issue was originally created as ARROW-17953. Please see the migration documentation for further details.}

[asfimport]

Antoine Pitrou / @pitrou:
cc @raulcd

[asfimport]

Raúl Cumplido / @raulcd:
would something that prints the whole expanded yaml for the docker-compose work, something like:

$ archery docker info --service debian-go-cgo
Service debian-go-cgo docker compose config:
 - image
  - ${REPO}:${ARCH}-debian-${DEBIAN}-go-${GO}-cgo
 - build
  - context
   - .
  - dockerfile
   - ci/docker/debian-go-cgo.dockerfile
  - cache_from
   - ['${REPO}:${ARCH}-debian-${DEBIAN}-go-${GO}-cgo']
  - args
   - base
    - ${REPO}:${ARCH}-debian-${DEBIAN}-go-${GO}
 - shm_size
  - 2G
 - volumes
  - ['.:/arrow:delegated', '${DOCKER_VOLUME_PREFIX}debian-ccache:/ccache:delegated']
 - environment
  - ARROW_GO_TESTCGO
   - 1
 - command
  - /bin/bash -c "
  /arrow/ci/scripts/go_build.sh /arrow &&
  /arrow/ci/scripts/go_test.sh /arrow" 

or do you specifically see this as only showing some of the specified info?

[asfimport]

Antoine Pitrou / @pitrou:
That's an interesting idea, I hadn't thought of that. What I had in mind was only to show specific info in a more high-level way, but I guess both could be useful.

[asfimport]

Antoine Pitrou / @pitrou:
Issue resolved by pull request 14345
#14345