[lxc-users] Migrating LXD VMs/containers between nodes

[Bostjan Skufca]

... or the one from Georg:
https://lists.linuxcontainers.org/pipermail/lxc-users/2015-November/010417.html

On 25 November 2015 at 18:48, Bostjan Skufca <bostjan at a2o.si> wrote:

> I recently asked a similar questions (did not mention rdb though that was
> exactly what I had in my mind:), maybe you will find Stephane's answer
> informative:
>
> https://lists.linuxcontainers.org/pipermail/lxc-users/2015-November/010414.html
>
> b.
>
>
> On 25 November 2015 at 16:40, Dilvan Moreira <dilvan at gmail.com> wrote:
>
>> Hi,
>>
>> I am setting up a small cluster using a VM (master) and 3 bare metal
>> servers (all running Ubuntu 14.04). Each bare metal server also has 2T of
>> disk space exported using Ceph 0.94.5
>> <http://docs.ceph.com/docs/v0.94.5/start/>.
>>
>> I would like to be able to run LXD VMs (containers) on this cluster and
>> to easily migrate these VMs to different nodes. I could have installed
>> OpenStack, but that seems rather complicated to me (maybe OpenStack is an
>> overkill for such a small cluster like mine). So, my solution was to create
>> a big Ceph/rbd block volume and mount it at the LXD container folder (
>> /var/lib/lxd/containers) in all nodes. To move a VM, I just shut it down
>> in one node and then start it again in another.
>>
>> For just one VM it's working fine, but it doesn't seem to me as a long
>> term solution. My questions:
>>
>>    1.
>>
>>    Is there a way to pass a block volume (Ceph/rbd) or folder to a LXD
>>    VM, so LXD itself would mount the root folder (/)? It would be nice
>>    to have a block volume for each VM (and not all VMs using the same folder).
>>    2.
>>
>>    Is there a simpler solution than OpenStack for my use case (or a
>>    simpler installation procedure for OpenStack)?
>>    3.
>>
>>    Ultimately, I would like my cluster to have the ability to schedule
>>    VMs to nodes, move VMs from failed nodes, etc. Any suggestions on how to
>>    get that?
>>
>> --
>> Dilvan de Abreu Moreira, Ph.D.     dilvan at gmail.com
>> http://java.icmc.usp.br
>> Warning: I use a spam filter, some emails sent to me CAN be lost!
>>
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>>
>
>
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