Open Stack

Alex,

Regarding plugins: plugins are welcome to install specific additional
DEB/RPM repos on the master node, or just configure cluster to use
additional onl?ne repos, where all necessary packages (including plugin
specific puppet manifests) are to be available. Current granular deployment
approach makes it easy to append specific pre-deployment tasks
(master/slave does not matter). Correct me if I am wrong.

Regarding flexibility: having several versioned directories with puppet
modules on the master node, having several fuel-libraryX.Y packages
installed on the master node makes things "exquisitely convoluted" rather
than flexible. Like I said, it is flexible enough to use mcollective, plain
rsync, etc. if you really need to do things manually. But we have
convenient service (Perestroika) which builds packages in minutes if you
need. Moreover, In the nearest future (by 8.0) Perestroika will be
available as an application independent from CI. So, what is wrong with
building fuel-library package? What if you want to troubleshoot nova (we
install it using packages)? Should we also use rsync for everything else
like nova, mysql, etc.?

Vladimir Kozhukalov

On Wed, Sep 9, 2015 at 4:39 PM, Alex Schultz <aschultz at mirantis.com> wrote:

> I agree that we shouldn't need to sync as we should be able to just update
> the fuel-library package. That being said, I think there might be a few
> issues with this method. The first issue is with plugins and how to
> properly handle the distribution of the plugins as they may also include
> puppet code that needs to be installed on the other nodes for a deployment.
> Currently I do not believe we install the plugin packages anywhere except
> the master and when they do get installed there may be some post-install
> actions that are only valid for the master.  Another issue is being
> flexible enough to allow for deployment engineers to make custom changes
> for a given environment.  Unless we can provide an improved process to
> allow for people to provide in place modifications for an environment, we
> can't do away with the rsync.
>
> If we want to go completely down the package route (and we probably
> should), we need to make sure that all of the other pieces that currently
> go together to make a complete fuel deployment can be updated in the same
> way.
>
> -Alex
>
> On Wed, Sep 9, 2015 at 8:15 AM, Andrey Danin <adanin at mirantis.com> wrote:
>
>> I don't think juggling with repos and pull requests is easier than direct
>> editing of files on Fuel node. Do we have Perestorika installed on Fuel
>> node in 7.0?
>>
>> On Wed, Sep 9, 2015 at 3:47 PM, Vladimir Kozhukalov <
>> vkozhukalov at mirantis.com> wrote:
>>
>>> Andrey,
>>>
>>> This change is going to make things even easier. Currently you don't
>>> need to build fuel-library package manually, Perestroika is going to do it
>>> for you. It builds necessary packages during minutes for every review
>>> request and packaging ci even tests it for you. You just need to make
>>> necessary changes not on master node but on your MACBOOK using your
>>> favorite editor. Then you need to commit this change and send this patch on
>>> review. If you want to test this patch manually, you just need to append
>>> this CR repo (example is here [1]) to the list of repos you define for your
>>> cluster and start deployment. Anyway, you still have rsync, mcollective and
>>> other old plain tools to run deployment manually.
>>>
>>> [1] http://perestroika-repo-tst.infra.mirantis.net/review/CR-221719/
>>>
>>>
>>>
>>> Vladimir Kozhukalov
>>>
>>> On Wed, Sep 9, 2015 at 2:48 PM, Dmitry Pyzhov <dpyzhov at mirantis.com>
>>> wrote:
>>>
>>>> Vladimir,
>>>>
>>>> thanks for bringing this up. It greatly correlates with the idea of
>>>> modularity. Everything related to an openstack release should be put in one
>>>> place and should be managed as a solid bundle on the master node. Package
>>>> repository is the first solution that comes to the mind and it looks pretty
>>>> good. Puppet modules, openstack.yaml and maybe even serialisers should be
>>>> stored in packages in the openstack release repository. And eventually
>>>> every other piece of our software should get rid of release-specific logic.
>>>>
>>>> On Tue, Sep 8, 2015 at 11:41 PM, Vladimir Kozhukalov <
>>>> vkozhukalov at mirantis.com> wrote:
>>>>
>>>>> Dear colleagues,
>>>>>
>>>>> Currently, we install fuel-libraryX.Y package(s) on the master node
>>>>> and then right before starting actual deployment we rsync [1] puppet
>>>>> modules (one of installed versions) from the master node to slave nodes.
>>>>> Such a flow makes things much more complicated than they could be if we
>>>>> installed puppet modules on slave nodes as rpm/deb packages. Deployment
>>>>> itself is parameterized by repo urls (upstream + mos) and this
>>>>> pre-deployment task could be nothing more than just installing fuel-library
>>>>> package from mos repo defined for a cluster. We would not have several
>>>>> versions of fuel-library on the master node, we would not need that
>>>>> complicated upgrade stuff like we currently have for puppet modules.
>>>>>
>>>>> Please give your opinions on this.
>>>>>
>>>>>
>>>>> [1]
>>>>> https://github.com/stackforge/fuel-web/blob/master/nailgun/nailgun/orchestrator/tasks_serializer.py#L205-L218
>>>>>
>>>>> Vladimir Kozhukalov
>>>>>
>>>>>
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>>>>>
>>>>
>>>>
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>>
>>
>> --
>> Andrey Danin
>> adanin at mirantis.com
>> skype: gcon.monolake
>>
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