Open Stack

Hi Marco,
Thanks for your input.

I assure you we're acutely aware of the difficulties first-time-installers
have with the choice to install nova-network or neutron/quantum.

We have plans in place to revise the install documentation with a "choose
your own adventure" style of outline, because there are times when
nova-network is your better choice in production.

The simplest possible architecture we've identified is:
Compute with KVM, local ephemeral shared storage, nova-networks in
multi-host, MySQL, nova-api, default scheduler, RabbitMQ for Ubuntu, Qpid
for RHEL, Identity, Image with local storage, Dashboard. Use as many
defaults as you can, as identified by the deployment program, TripleO. Two
nodes - controller and compute node.

What we are painfully aware of is that if you start there, getting to
neutron is no easy task. So the next "adventure" or architecture would be,
substitute Neutron with the LinuxBridge plug-in.

The rest of the adventures and architectures are listed in
https://etherpad.openstack.org/havanainstall.

You can see we have our work cut out for us and we would certainly welcome
reviews on review.openstack.org as the install guides take shape for
Havana.

Thanks,
Anne


On Thu, Aug 29, 2013 at 4:30 AM, Marco Fornaro <Marco.Fornaro at huawei.com>wrote:

>  Hi all,****
>
> ** **
>
> I’m an Openstack “newbbie” and this is my first post to this mail list, so
> please be patient J****
>
> ** **
>
> I’m actually carefully studying Neutron doc, especially installation
> procedures, In my opinion the NEUTRON documentation could and SHOULD be
> improved, in the following my main concern:****
>
> ** **
>
> *In** the “Openstack Networking administration guide”* (
> http://docs.openstack.org/trunk/openstack-network/admin/content/index.html)
> We can notice:****
>
> 1) there is no trace on a comprehensive guide that lead you step by step
> to a whole openstack with advanced network features installation: the guide
> just focus on Quantum/neutron server and related components and plugins
> installations, without describing how to install the whole stuff (all the
> other openstack modules)****
>
> 2) The suggested mapping between services (software modules) and physical
> servers is only represented in this map:
> http://docs.openstack.org/trunk/openstack-network/admin/content/connectivity.html,
> but is not explicitly listed and explained in the guide, moreover this
> mapping sounds to me quite weird: we can notice all the services
> overloading the cloud controller while the network controller has almost
> only the network plugin installed!****
>
> 3) look at warning and note written in
> http://docs.openstack.org/trunk/openstack-network/admin/content/nova_with_neutron.html:
> basically there is written that the service nova-network is not at all
> compatible with the quantum/neutron server, BUT in the official openstack
> installation guide (
> http://docs.openstack.org/grizzly/openstack-compute/install/apt/content/installing-the-cloud-controller.html)
> it is recomended to install nova-network service either in the controller
> or in the compute node(s)!****
>
> ** **
>
> …so this means that, if I follow the official guides I have first to get
> an openstack instance up and working, then I have to uninstall one of its
> essential parts, that is obviously absolutely mandatory to make it works,
> then install the network modules!****
>
> ** **
>
> Honestly: the first time I tried I had weird behaviors…J..****
>
> ** **
>
> Finally:****
>
> 4) the L3 component is either essential for some plugins  but uncompatible
> with some other ones (see
> http://docs.openstack.org/trunk/openstack-network/admin/content/install_neutron-l3.html)…IMHO
> this should be highlighted since the beginning and should lead to different
> suggested installation sequences and procedures!!!****
>
> ** **
>
> ** **
>
> BTW: Right now I  asked for help in openstack ” general “ mail list, and I
> have been answered back with some interesting guide (thread “[Openstack]
> Neutron Installation: support request”) and I first  could notice that
> there is a completely different installation sequence: the Neutron/quantum
> server is installed BEFORE all the nova components!****
>
> ** **
>
> Hope this post can be helpful, personally I would suggest to write a kind
> of “official” example to get a working instance of Openstack + Neutron +
> whished Plugin….and in not so much time I count to be able to actively
> propose something…please tell me if it can be of any interest****
>
> ** **
>
> ** **
>
> Best Regards****
>
> ** **
>
> Marco Fornaro****
>
> ** **
>
> * *
>
> ** **
>
> _______________________________________________
> Openstack-docs mailing list
> Openstack-docs at lists.openstack.org
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-docs
>
>


-- 
Anne Gentle
annegentle at justwriteclick.com
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