Bug 1374058

created container can't be displayed by python APIs for docker.


# rpm -q python-docker-py
python-docker-py-1.9.0-1.el7.noarch

[root@hp-dl360g9-04 ~]# docker images
REPOSITORY                         TAG                 IMAGE ID            CREATED             SIZE
docker.io/busybox                  latest              2b8fd9751c4c        3 months ago        1.093 MB
registry.access.redhat.com/rhel7   latest              1a9b3357bac5        6 months ago        203.3 MB
[root@hp-dl360g9-04 ~]# docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
[root@hp-dl360g9-04 ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
[root@hp-dl360g9-04 ~]# python
Python 2.7.5 (default, Oct 11 2015, 17:47:16) 
[GCC 4.8.3 20140911 (Red Hat 4.8.3-9)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from docker import client
>>> cli = client.Client(base_url='unix://var/run/docker.sock')
>>> containers = cli.containers()
>>> containers
[]
>>> images = cli.images()
>>> images
[{u'Created': 1466724217, u'Labels': {}, u'VirtualSize': 1092588, u'ParentId': u'', u'RepoTags': [u'docker.io/busybox:latest'], u'RepoDigests': None, u'Id': u'sha256:2b8fd9751c4c0f5dd266fcae00707e67a2545ef34f9a29354585f93dac906749', u'Size': 1092588}, {u'Created': 1458660173, u'Labels': {u'Vendor': u'Red Hat, Inc.', u'Name': u'rhel7/rhel', u'Build_Host': u'rcm-img03.build.eng.bos.redhat.com', u'Version': u'7.2', u'Architecture': u'x86_64', u'Release': u'56', u'BZComponent': u'rhel-server-docker', u'Authoritative_Registry': u'registry.access.redhat.com'}, u'VirtualSize': 203268847, u'ParentId': u'', u'RepoTags': [u'registry.access.redhat.com/rhel7:latest'], u'RepoDigests': None, u'Id': u'sha256:1a9b3357bac5468b34b441eb7fe90ab4789a9e2d0f721c62141eb7926fcb4562', u'Size': 203268847}]
>>> first_image = images[0]['RepoTags'][0]
>>> first_image
u'docker.io/busybox:latest'
>>> container = cli.create_container(image=first_image, command='/bin/sleep 30')
>>> cli.containers()
[]
>>> cli.containers()
[]

Tomas, could you please take a look at this one?

Alex, `containers` method is equivalent of `ps` command in docker client.

So when you create a container, you need to start it in order to see the container with `containers` call, or you can set `all=True` to see even stopped containers.

```
In [1]: d.create_container("fedora:24", command="cat", stdin_open=True)
Out[1]:
{'Id': '03f21097be111032faeb6b5e663cb21759935cab991a1e5f739f1c07732a721e',
 'Warnings': None}

In [2]: d.start("03f21097be111032faeb6b5e663cb21759935cab991a1e5f739f1c07732a721e")

In [3]: d.containers()
Out[3]:
[{'Command': 'cat',
  'Created': 1474632902,
  'HostConfig': {'NetworkMode': 'default'},
  'Id': '03f21097be111032faeb6b5e663cb21759935cab991a1e5f739f1c07732a721e',
  'Image': 'fedora:24',
  'ImageID': 'sha256:f9873d530588316311ac1d3d15e95487b947f5d8b560e72bdd6eb73a7831b2c4',
  'Labels': {},
  'Mounts': [],
  'Names': ['/serene_poitras'],
  'NetworkSettings': {'Networks': {'bridge': {'Aliases': None,
     'EndpointID': 'ee0c93b6f264313f544f462e138a3ca1c19ec6ff7c19378f0e7ba2bb5885cbed',
     'Gateway': '172.17.0.1',
     'GlobalIPv6Address': '',
     'GlobalIPv6PrefixLen': 0,
     'IPAMConfig': None,
     'IPAddress': '172.17.0.2',
     'IPPrefixLen': 16,
     'IPv6Gateway': '',
     'Links': None,
     'MacAddress': '02:42:ac:11:00:02',
     'NetworkID': '7815c42fddb90dd68f68be9492108368c08ee943a96561276fc95514fe372fde'}}},
  'Ports': [],
  'State': 'running',
  'Status': 'Up 7 seconds'}]
```

(In reply to Tomas Tomecek from comment #5)
> Alex, `containers` method is equivalent of `ps` command in docker client.
> 

Tomas, I see, but I just created a container by python API and keep the container running 30s, but I can't find it in list of running containers.

>>> container = cli.create_container(image=first_image, command='/bin/sleep 30')
>>> cli.containers()
[]

> So when you create a container, you need to start it in order to see the
> container with `containers` call, or you can set `all=True` to see even
> stopped containers.

I only wanna show running containers.

> 
> ```
> In [1]: d.create_container("fedora:24", command="cat", stdin_open=True)
> Out[1]:
> {'Id': '03f21097be111032faeb6b5e663cb21759935cab991a1e5f739f1c07732a721e',
>  'Warnings': None}
> 
> In [2]:
> d.start("03f21097be111032faeb6b5e663cb21759935cab991a1e5f739f1c07732a721e")
> 
> In [3]: d.containers()

In here, I can't see any running containers, please see above comments, thanks

(In reply to Alex Jia from comment #6)
> In here, I can't see any running containers, please see above comments,
> thanks

Because you haven't started it. `create_container` just creates a container and does NOT start it. You have to explicitly start it with `start` method. Take a look at my example.

(In reply to Tomas Tomecek from comment #7)
> (In reply to Alex Jia from comment #6)
> > In here, I can't see any running containers, please see above comments,
> > thanks
> 
> Because you haven't started it. `create_container` just creates a container
> and does NOT start it. You have to explicitly start it with `start` method.
> Take a look at my example.

Oh, I lost the steps, thanks a lot.

Due to an old version of python-backports-ssl_match_hostname this build of python-docker-py is not able to accept SSL certificates which have ip address in SubjectAlthostname. I'm assuming upstream needs this for docker machine. Creating bug to track this: https://bugzilla.redhat.com/show_bug.cgi?id=1379594

What is this status of this?

What version of python-docker-py will be provided in RHEL 7.3.

Should we consolidate these BZ's?  1374057 & 1374058

Customer participating in RHEL 7.3 HTB is asking for this package to be updated/rebased for 7.3.

*** Bug 1374057 has been marked as a duplicate of this bug. ***

(In reply to Terry Bowling from comment #10)
> What is this status of this?

Will be shipped in RHEL 7.3.0. See advisory link in Comment 1.

> 
> What version of python-docker-py will be provided in RHEL 7.3.

1.9.0. I updated bz summary to reflect that change.

> 
> Should we consolidate these BZ's?  1374057 & 1374058

No idea why the duplicates occurred. Guess bugzilla was acting funny on my browser. Closing Bug 1374057 in favor of this.

> 
> Customer participating in RHEL 7.3 HTB is asking for this package to be
> updated/rebased for 7.3.

Thanks Lokesh for the clarification. Removing needinfo as I would provide the same info.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-2629.html