[library] Get containers info from dockerctl

[Fabrizio Soppelsa]

Please add some functionality to dockerctl to show containers debug information for troubleshooting purposes.

For instance, print the long 64-chars container ID and other relevant info from `docker inspect`.

[Bartłomiej Piotrowski (bpiotrowski)]

Contacted Fabrizio about the scope of the task.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/228377

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/228377
Committed: https://git.openstack.org/cgit/stackforge/fuel-library/commit/?id=f6e66e3ea7a4e4752c2eebe15cf85efde8133945
Submitter: Jenkins
Branch: master

commit f6e66e3ea7a4e4752c2eebe15cf85efde8133945
Author: Bartłomiej Piotrowski <email address hidden>
Date: Mon Sep 28 11:59:16 2015 +0200

    Add inspect subcommand to dockerctl

    Take this opportunity to replace bunch of if conditionals with the case
    statement.

    Change-Id: Ic0c80c3fadb607d4f8356adf7f77fe671328477d
    Closes-bug: 1400776

[Artem Hrechanychenko (agrechanichenko)]

release_versions:
  2015.1.0-8.0:
    VERSION:
      api: '1.0'
      astute_sha: 0f753467a3f16e4d46e7e9f1979905fb178e4d5b
      build_id: '111'
      build_number: '111'
      feature_groups:
      - mirantis
      fuel-agent_sha: e881f0dabd09af4be4f3e22768b02fe76278e20e
      fuel-library_sha: 84cdfdf6f2783bc828027831dbab3d7dd2335c49
      fuel-nailgun-agent_sha: d66f188a1832a9c23b04884a14ef00fc5605ec6d
      fuel-nailgun_sha: ec56b54491ecb0182f66e675f549825abc1a96ee
      fuel-ostf_sha: 41aa5059243cbb25d7a80b97f8e1060a502b99dd
      fuelmain_sha: 26cec2d55881dc7cbea8e5989b322cbff6dac8b5
      openstack_version: 2015.1.0-8.0
      production: docker
      python-fuelclient_sha: 286939d3be220828f52e73b65928ed39662e1853
      release: '8.0'

_______________________________________________________________________________________________________
Issue #1
Steps to reproduce:
1) #dockerctl inspect

Expected result - output similar to docker inspect, i.e contain help menu, command explanation and usage:
docker inspect

Usage: docker inspect [OPTIONS] CONTAINER|IMAGE [CONTAINER|IMAGE...]

Return low-level information on a container or image

  -f, --format="" Format the output using the given go template.

Actual result:
#dockerctl inspect
You need to specify valid container name.
Use 'dockerctl list' to see available containers.

_______________________________________________________________________________________________________
Issue #2
Steps to reproduce:
1) dockerctl inspect with wrong container id

Expected result:
warning message with wrong container id must be showed, usage example must be showed(optionally)

Actual result:
Wrong command (docker inspect) usage showed

[root@nailgun ~]# dockerctl inspect wrong_id

Usage: docker inspect [OPTIONS] CONTAINER|IMAGE [CONTAINER|IMAGE...]

Return low-level information on a container or image

  -f, --format="" Format the output using the given go template.

_______________________________________________________________________________________________________

Issue #3
Steps to rerpoduce:
1) dockerctl inspect cont_1 cont_2

Expected result:
Similar to docker inspect image1, image2 , i.e must be showed concatenated info about two containers.

Actual result:
Only 1st container info was showed. - http://paste.openstack.org/show/475263/

_______________________________________________________________________________________________________
Issue #4
Wrom previous issue follows several issues:
If next id in row is not walid, then this information we do not know it

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/230946

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/230946
Committed: https://git.openstack.org/cgit/stackforge/fuel-library/commit/?id=ce288a4e9fce28a9a55e689f74628cf1b44c299a
Submitter: Jenkins
Branch: master

commit ce288a4e9fce28a9a55e689f74628cf1b44c299a
Author: Bartłomiej Piotrowski <email address hidden>
Date: Mon Oct 5 13:00:45 2015 +0200

    Fix few small issues with dockerctl inspect

    * display inspect usage if no arguments were given
    * iterate over given containers to show concatenated output
    * print error message if one of many containers doesn't exist

    Change-Id: Idfa3f3db01a5287d4970772b250f085ce890134e
    Closes-bug: 1400776

[Artem Hrechanychenko (agrechanichenko)]

Verified on 137 ISO

2015.1.0-8.0:
    VERSION:
      api: '1.0'
      astute_sha: e99368bd77496870592781f4ba4fb0caacb9f3a7
      build_id: '137'
      build_number: '137'
      feature_groups:
      - mirantis
      fuel-agent_sha: 84335446172cc6a699252c184076a519ac791ca1
      fuel-createmirror_sha: df6a93f7e2819d3dfa600052b0f901d9594eb0db
      fuel-library_sha: 49f55c1eb853a0cd3b2dd287493bdbce9c78a93e
      fuel-nailgun-agent_sha: d66f188a1832a9c23b04884a14ef00fc5605ec6d
      fuel-nailgun_sha: 3a745ee87e659b3ba239bbede21e491292646acb
      fuel-ostf_sha: 983d0e6fe64397d6ff3bd72311c26c44b02de3e8
      fuelmain_sha: 4c58b6503fc780be117777182165fd7b037b1a96
      openstack_version: 2015.1.0-8.0
      production: docker
      python-fuelclient_sha: a8298df7de84960f32dccb1cd070255d5828a8ea
      release: '8.0'

_____________________________________________________________________________
Issue #1
Steps to reproduce:
1) #dockerctl inspect

Expected result - output similar to docker inspect, i.e contain help menu, command explanation and usage:
docker inspect

Usage: docker inspect [OPTIONS] CONTAINER|IMAGE [CONTAINER|IMAGE...]

Return low-level information on a container or image

  -f, --format="" Format the output using the given go template.

Actual result:
Empty stdout

#dockerctl inspect
#echo $?
0

_____________________________________________________________________________

Issue #2
Steps to reproduce:
1) dockerctl inspect with wrong container id

Expected result:
warning message with wrong container id must be showed, usage example must be showed(optionally)

Actual result:
Warning message with not finded contained was showed, but help usage printed twice

[root@nailgun ~]# dockerctl inspect wrong_id
Could not find the wrong_id container

Usage: docker inspect [OPTIONS] CONTAINER|IMAGE [CONTAINER|IMAGE...]

Return low-level information on a container or image

  -f, --format="" Format the output using the given go template.

Usage: docker inspect [OPTIONS] CONTAINER|IMAGE [CONTAINER|IMAGE...]

Return low-level information on a container or image

  -f, --format="" Format the output using the given go template.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/232984

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/232984
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=eadb16b1d49b0c7b51153d6d023167f9ba08aac5
Submitter: Jenkins
Branch: master

commit eadb16b1d49b0c7b51153d6d023167f9ba08aac5
Author: Bartłomiej Piotrowski <email address hidden>
Date: Fri Oct 9 11:52:59 2015 +0200

    Display usage of dockerctl inspect only when no argument was given

    Change-Id: I43e8d9ff799d9ca34bc66821ffdb9e55ce043483
    Closes-bug: 1400776