[Lxc-users] list OK? Late email arrivals (was: GUI container)

[Christoph Willing]

The email below just arrived via Lxc-users list. I sent it last 17th  
December so its taken a _long_ time to reach the list. Other cc'd  
recipients received their copies more or less immediately as expected.

I see another email with subject "unable to set default gw", sent 14th  
December also just arrived.


Is something wrong with list operation?


chris



On 17/12/2010, at 10:17 AM, Christoph Willing wrote:

>
> On 17/12/2010, at 6:06 AM, Nirmal Guhan wrote:
>
>> On Fri, Dec 10, 2010 at 2:40 PM, Christoph Willing <c.willing at uq.edu.au
>>> wrote:
>>>
>>> On 11/12/2010, at 1:04 AM, Matto Fransen wrote:
>>>
>>>> Hi,
>>>>
>>>> On Thu, Dec 09, 2010 at 10:21:49PM -0800, Nirmal Guhan wrote:
>>>>
>>>>> Has anyone tried running a GUI app (firefox for instance) inside a
>>>>> container or as an application container? Just want to know if  
>>>>> this
>>>>> requires any special steps before I tread that path. Am using
>>>>> Fedora
>>>>> 12 for both host and container.
>>>>>
>>>>
>>>> It is no problem to run GUI apps in a container.
>>>> I have set up one of my containers as an X-server. From an
>>>> old laptop I do "X -query <ip-number> and run the window-manager
>>>> that is installed on the container.
>>>>
>>>> You can use ssh -X to log in into the container and start
>>>> your X-app.
>>>
>>>
>>> Most of my containers are without X (run level 3). When I have one
>>> that
>>> needs a X environment I start an Xvfb with a simple window manager
>>> (mwm)
>>> using a boot script. When I need gui type access to it, I run
>>> x11vnc in the
>>> container and access that environment from anywhere with vncviewer.
>>>
>>
>> Do I need to start container with X (level 5?).
>
> No need for that since we're starting our own Xvfb
>
>
>> I tried these steps :
>> 1. Start container in level 3.
>> 2.  lxc-console into container
>> 3. Run Xvfb (that returned error as)
>> #Xvfb :0 -screen 0 1024x768x16 -ac &
>> SELinux: Invalid object class mapping, disabling SELinux support.
>> (EE) AIGLX error: dlopen of /usr/lib/dri/swrast_dri.so failed
>> (/usr/lib/dri/swrast_dri.so: cannot open shared object file: No such
>> file or directory)
>> (EE) GLX: could not load software renderer
>> 4. Run mwm
>> # mwm
>> Error: Can't open display: 0.0
>
> If Xvfb hasn't started (as above) then mwm can't run. - there is no
> display to open.
>
>
>> I have set display to 0.0
>>
>> If I start Xvfb with no options I still get the above errors.
>>
>> Any idea on what I am missing?
>
>
> I don't have SELinux to contend with; you'll have to fix that first.
>
> Here is the script I use which runs at boot time. The apps are all run
> as an ordinary user "ag". I use display :1 out of habit (after testing
> on machines where there is already an existing :0) but you can choose
> anything reasonable.
>
>
> # Commands to provide display environment for AGServiceManager & vic
> #
> su -c '/usr/bin/Xvfb :1 -screen 0 1024x768x24' ag &
> su -c '/usr/bin/mwm -display :1' ag &
>
> # Run the service manager as user 'ag'
> #
> su -c 'DISPLAY=:1 /usr/bin/AGServiceManager3.py -d' ag &
>
>
> Thats enough to run what I need in that container without further
> input from me. If I do want to use that X environment remotely for
> some reason, I ssh as user ag (or lxc-console and su - ag) into the
> container and run:
>     x11vnc -rfbauth /home/ag/.vnc/passwd -display :1 &
> (assumes you've previously set up a vnc password)
> and then from a remote machine, run:
>     vncviewer conatiner_ip_addr:0
>
>
> chris
>
>
> Christoph Willing                       +61 7 3365 8316
> QCIF Access Grid Manager
> University of Queensland
>
>
> ------------------------------------------------------------------------------
> Learn how Oracle Real Application Clusters (RAC) One Node allows  
> customers
> to consolidate database storage, standardize their database  
> environment, and,
> should the need arise, upgrade to a full multi-node Oracle RAC  
> database
> without downtime or disruption
> http://p.sf.net/sfu/oracle-sfdevnl
> _______________________________________________
> Lxc-users mailing list
> Lxc-users at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/lxc-users