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With the spec that Angus proposed, a read/write bind mount volume is not a
requirement as the configuration comes from the central data store (etcd
or zookeeper).

Just pid=host and net=host are hard requirements.  Nova will not work
without net=host, atleast on RPM based distributions.  Sam Yaple I think
indicated it had worked in the past on Ubuntu, but we really want to stick
with a ³all the distress² policy even for experimental repositories.

I found getting neutron networking with nova vas operational inside
Kubernetes to be non-viable, but I couldn¹t get very far because of the
lack of net=host.

Using replication controllers also didn¹t work as I would have liked
because there is no way to specify "replicate to all nodes 1 copy of the
pod².

I¹m unclear how the kubernetes service construct would work in a world
with net=host, but perhaps it is detailed in the implementation.

I would recommend to pick the tech you want to work with, either mesos or
kubernetes as to put all effort behind one arrow rather than two :)

Regards
-steve

On 11/3/15, 11:25 AM, "Michal Rostecki" <mrostecki at mirantis.com> wrote:

>On 11/03/2015 04:16 PM, Jeff Peeler wrote:
>> On Tue, Nov 3, 2015 at 1:44 AM, Michal Rostecki
>><mrostecki at mirantis.com> wrote:
>>> Hi,
>>>
>>> +1 to what Steven said about Kubernetes.
>>>
>>> I'd like to add that these 3 things (pid=host, net=host, -v) are
>>>supported
>>> by Marathon, so probably it's much less problematic for us than
>>>Kubernetes
>>> at this moment.
>>
>> I don't actively track Kubernetes upstream, so this seemed like a
>> natural point of reevaluation. If Kubernetes still doesn't support the
>> Docker features Kolla needs, obviously it's a non-starter. Nice to
>> hear that Marathon does though.
>>
>
>After taking a look on docs, issues and pull requests in Kubernetes I
>have to admit that:
>
>- net=host is supported now -
>https://github.com/kubernetes/kubernetes/pull/5886
>- volumes seems to be supported -
>https://github.com/kubernetes/kubernetes/blob/release-1.0/docs/user-guide/
>volumes.md#hostpath
>- the question is whether this option provides 'rw' mode
>
>I couldn't find any info about pid=host. But if there is a support for
>that, I will have to change my mind about Kubernetes.
>
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