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Can I separate Openstack services from and All-In-One installation?

asked 2014-12-08 11:30:08 -0500

ddlingo gravatar image

Due to some rolling tests, I need to use an All-in-one installation initially, but I would like to separate the services at a later date. If this is possible, can someone point me to the correct process or procedures?

FYI I tried to search for an answer here but couldn't find exactly what I was looking for.

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answered 2014-12-08 13:29:40 -0500

mpetason gravatar image

updated 2014-12-08 13:42:31 -0500

It is going to be complicated to do this. If you are working on a migration and that is why you are doing all-in-one then you could look at keeping the all in one online while your real environment comes up. The biggest issue is if you can use most of the data you saved on the all-in-one node. You'll have to move data off for most every service.

In short you'll need to learn OpenStack in depth to be able to separate all of these services correctly. You'll have to move the APIs off to other servers, change keystone endpoints, make sure MySQL is listening on a public address, change what back-end some of the services will use, create snapshots of all instances and download them then upload them again when you move nova-compute off to another node. It's a lot of work. It can be done, but you are better of spending your time learning OpenStack and setting up a new environment from scratch.

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uggghhhh! I think you have given me what I didn't want to hear. LOL. I wanted and easier way to deploy Openstack VMs over VMware, but I think the best way may just be to use my Chef recipes to automate the configuration. I truly appreciate your response.

ddlingo gravatar imageddlingo ( 2014-12-08 13:47:03 -0500 )edit

No problem. Keep in mind it can be done, it just takes a bit of work and a better understanding of OpenStack and all of it's services. To get something like this to work it would probably take me a couple hours - and I've been working with this for a while.

mpetason gravatar imagempetason ( 2014-12-08 14:01:47 -0500 )edit

answered 2014-12-09 02:15:03 -0500

DanIzack gravatar image

updated 2014-12-09 02:17:46 -0500

Actually, RH suggests a bit different approach for RDO Multinode Deployment (of course you can go your own way)
View as sample
You can also take a look at :
A recent sample of Juno Multinode Deployment may be seen here

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He's asking about how to separate services after installing with an All-in-one, not how to create a multi node environment. Creating a production ready environment out of an all-in-one by separating services is not the best idea.

mpetason gravatar imagempetason ( 2014-12-09 08:59:26 -0500 )edit

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Asked: 2014-12-08 11:30:08 -0500

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Last updated: Dec 09 '14