[Bug 1071605] New: sshd not working in fedora image

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1071605

Bug ID: 1071605
           Summary: sshd not working in fedora image
           Product: Fedora
           Version: 20
         Component: docker-io
          Assignee: [e-mail]
          Reporter: [e-mail]
        QA Contact: [e-mail]
                CC: [e-mail], [e-mail],
                    [e-mail], [e-mail],
                    [e-mail], [e-mail],
                    [e-mail]

Description of problem:

Running sshd on a fresh docker fedora image fails with this error:
Failed to get D-Bus connection: No connection to service manager.

Version-Release number of selected component (if applicable):

$ docker -v
Docker version 0.8.0, build cc3a8c8/0.8.0

$ docker inspect fedora
[{
    "id": "58394af373423902a1b97f209a31e3777932d9321ef10e64feaaa7b4df609cf9",
    "parent":
"8abc22fbb04266308ff408ca61cb8f6f4244a59308f7efc64e54b08b496c58db",
    "created": "2014-02-03T16:10:40.500814677Z",
    "container":
"f718f19a28a5147da49313c54620306243734bafa63c76942ef6f8c4b4113bc5",
    "container_config": {
        "Hostname": "88807319f25e",
        "Domainname": "",
        "User": "",
        "Memory": 0,
        "MemorySwap": 0,
        "CpuShares": 0,
        "AttachStdin": false,
        "AttachStdout": false,
        "AttachStderr": false,
        "PortSpecs": null,
        "ExposedPorts": null,
        "Tty": false,
        "OpenStdin": false,
        "StdinOnce": false,
        "Env": [
            "HOME=/",
            "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
        ],
        "Cmd": [
            "/bin/sh",
            "-c",
            "#(nop) ADD fedora-20-medium.tar.xz in /"
        ],
        "Dns": null,
        "Image":
"8abc22fbb04266308ff408ca61cb8f6f4244a59308f7efc64e54b08b496c58db",
        "Volumes": null,
        "VolumesFrom": "",
        "WorkingDir": "",
        "Entrypoint": null,
        "NetworkDisabled": false,
        "OnBuild": null
    },
    "docker_version": "0.6.3",
    "author": "Lokesh Mandvekar \[e-mail]\u003e -
./buildcontainers.sh",
    "config": {
        "Hostname": "88807319f25e",
        "Domainname": "",
        "User": "",
        "Memory": 0,
        "MemorySwap": 0,
        "CpuShares": 0,
        "AttachStdin": false,
        "AttachStdout": false,
        "AttachStderr": false,
        "PortSpecs": null,
        "ExposedPorts": null,
        "Tty": false,
        "OpenStdin": false,
        "StdinOnce": false,
        "Env": [
            "HOME=/",
            "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
        ],
        "Cmd": null,
        "Dns": null,
        "Image":
"8abc22fbb04266308ff408ca61cb8f6f4244a59308f7efc64e54b08b496c58db",
        "Volumes": null,
        "VolumesFrom": "",
        "WorkingDir": "",
        "Entrypoint": null,
        "NetworkDisabled": false,
        "OnBuild": null
    },
    "architecture": "x86_64",
    "Size": 385520098
}]

How reproducible:
Always

Steps to Reproduce:
1. docker run -t -i fedora bash
2. bash-4.2# yum install -y openssh-server
3. bash-4.2# systemctl start sshd

Actual results:
Failed to get D-Bus connection: No connection to service manager.

bash-4.2# service sshd status
Redirecting to /bin/systemctl status  sshd.service
Failed to get D-Bus connection: No connection to service manager.

Expected results:
A running sshd daemon

Additional info:

[Bug 1071605] sshd not working in fedora image

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1071605

--- Comment #1 from Matthew Miller  ---
It's not sshd that's not working -- it's that you're not running systemd. The
process you're running in your container is "bash". That means any services
normally started by systemd aren't there -- not to mention systemd itself.

You *can* run "docker run systemd", but results are unpredictable at best right
now. Work on polishing that is a perfectly interesting project for someone, but
as far as I know no one is focusing on it.

You could also run the container with sshd directly -- that should work.

[Bug 1071605] sshd not working in fedora image

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1071605

--- Comment #2 from Paolo Antinori  ---
Thanks Matt for the explanation. At that time I had bypassed the problem using
Centos images that allow me to use

service sshd start

that keeps it simpler by my point of view.

[Bug 1071605] sshd not working in fedora image

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1071605

--- Comment #3 from Matthew Miller  ---
(In reply to Paolo Antinori from comment #2)
> Thanks Matt for the explanation. At that time I had bypassed the problem
> using Centos images that allow me to use
>
> service sshd start
>
> that keeps it simpler by my point of view.

So, that just runs '/etc/init.d/sshd start', which in turn runs /usr/sbin/sshd.
There's nothing fundamentally different from just doing that directly (although
the script does set up host keys if they don't exist).

[Bug 1071605] sshd not working in fedora image

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1071605

Paolo Antinori  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |CLOSED
         Resolution|---                         |NOTABUG
        Last Closed|                            |2014-05-15 06:51:07