[one-dev] OpenNebula LXC Addon

[Javier Fontan]

I'll create the repository and let you know where to point to.

On Mon, Nov 11, 2013 at 12:02 PM, Valentin Bud <valentin at databus.pro> wrote:
> Hey there Javi,
>
>
> On Thu, Nov 07, 2013 at 11:40:23PM +0100, Javier Fontan wrote:
>>
>> This looks awesome!
>>
>> Do you want me to create a repository so we all can put our hands on it?
>
>
> That would be great. It will take me some time to refactor the code and
> add checks all over the place.
>
>
>>
>> I am sure asking a lot but would be great to have a little doc on how
>> to setup a dev environment to test this. I know nothing about LXC. It
>> doesn't need to be too detailed, we can do that afterwards.
>
>
> I didn't think otherwise. The docs will be pretty thin at first but they
> will evolve along side with the addon.
>
> Cheers,
> Valentin
>
>
>>
>> Thanks!
>>
>> On Thu, Nov 7, 2013 at 11:08 PM, Valentin Bud <valentin at databus.pro>
>> wrote:
>> > Hello everyone,
>> >
>> > I have a working PoC for an LXC addon and quite a few questions on
>> > how to proceed further.
>> >
>> > In the actual state the driver has the following limitations:
>> >
>> >   * It only works with the LVM datastore,
>> >
>> >   * Couldn't find a way to transform user/system CPU time in percentage
>> >     so the poll action returns 1 (hardcoded) for USEDCPU.
>> >
>> > For now the VMM driver responds to the following actions:
>> >
>> >   * deploy
>> >   * shutdown
>> >   * cancel
>> >   * reset
>> >   * reboot
>> >   * poll
>> >
>> > I have used the lxc tools to manipulate containers and some
>> > functionalities are not yet available. For example the reboot and reset
>> > actions basically do stop/start. And the shutdown one doesn't do a clean
>> > shutdown.
>> >
>> > I have developed the drivers to work on Debian Wheezy. Among the lxc
>> > tools there is lxc-attach, which runs a command inside the container.
>> >
>> > Unfortunately the stable kernel doesn't support that but the
>> > experimental one does. See Debian bug #595920 [1].
>> >
>> > Using lxc-attach, the shutdown operation could be executed cleanly. I am
>> > about to test the experimental kernel, 3.8, in the near future. I am
>> > also thinking of using lxc-attach for contextualization.
>> >
>> > I have quite a few questions about how to continue and some notes
>> > about the template passed to the vmm driver.
>> >
>> > If your offer, Jaime, of doing a Hangout is still available I would like
>> > to discuss them over there. After that we could write a report back to
>> > the mailing list for people who couldn't attend. What do you think about
>> > this?
>> >
>> > The next step I am going to do is to implement the same functionalities
>> > using libvirt.
>> >
>> >> Anyway, I am certainly in favor of docker as a private PaaS on top of
>> >> OpenNebula...
>> >
>> > Carlo, I am trying to understand how these two would fit together.
>> > OpenNebula would deal with setting up storage, network and CPU/RAM
>> > resources for dockers? I would really appreciate it if you could be a
>> > little bit more specific.
>> >
>> > [1]: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=595920
>> >
>> > Cheers and Goodwill,
>> > Valentin
>> > _______________________________________________
>> > Dev mailing list
>> > Dev at lists.opennebula.org
>> > http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org
>>
>>
>>
>> --
>> Javier Fontán Muiños
>> Developer
>> OpenNebula - The Open Source Toolkit for Data Center Virtualization
>> www.OpenNebula.org | @OpenNebula | github.com/jfontan



-- 
Javier Fontán Muiños
Developer
OpenNebula - The Open Source Toolkit for Data Center Virtualization
www.OpenNebula.org | @OpenNebula | github.com/jfontan