Open Stack

On 26.04.16 17:31, Mark Kirkwood wrote:
> Yeah, a builtin method to distribute rings would be nice.

Well, you need some more information - for example the proxy nodes, that
are not included in the rings, but need a copy too. So we would need to
provide some additional data, and IMO then we quickly start to reinvent
the wheel to distribute a few files.

> The puppet module (puppet-swift) does do this. I'm guessing most
> people are going to use some configuration management tool (Pupper,
> Ansible etc) to manage their deployment (especially if installing the
> rest of Openstack too).

Indeed. Ansible provides a very simple way to copy ring files to all
your proxy/storage nodes even without writing any playbook at all.
Just create an inventory file listing all your proxy & storage nodes, a
directory "rings" containing ONLY the ring files (*.ring.gz and maybe
*.builder as well), and then use something like this:

ansible -a "src=rings/ dest=/etc/swift" -m copy -i inventory all

That takes care of distributing your files to all nodes (you might need
a few more options for authentication, but that's basically it).

-- Christian

-- 
Christian Schwede
Principal Software Engineer
Production Chain Tool Team
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