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Setting up a simple test OpenStack environment

asked 2017-02-02 15:44:52 -0500

Arian gravatar image

I need to set up a multi-node OpenStack environment. I have watched a lot of videos on YouTube and read all the documentation, but I still can't understand how I should connect nodes to switches, and how many switches do I need, and how should I configure them. I really can't understand the documentation, because it talks about complicated production architectures. I merely want a 4-node or 5-node network.

I have the nodes PXE booted, so I assume I already have the Admin network set up correct? Also, my fuel master node has Internet access. I can access the web interface and assign roles to nodes, but all deployments fail because of network problem.

Can you please help me, in simple terms, how many switches do I need and how I should configure the other (other than PXE/admin) networks? And which nodes should I connect to which switches?

Thanks

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answered 2017-02-06 10:39:47 -0500

dcreno gravatar image

Since you haven't received an answer, I'll provide my thoughts, hopefully somewhat helpful:

There are many ways to set this up, presumably you are following instructions somewhere and they rely on a reference architecture which specifies the host interfaces and switch ports. If you are not following instructions, I think that's a mistake and you should. For CentOS, the Newton release instructions call for two interfaces per host: http://docs.openstack.org/newton/install-guide-rdo/environment-networking.html. In the network layout there, your existing network is the red one.

How many switches you have is not as important as the VLANs and routing that you setup on those switches/routers. You could do this with one switch if you had enough ports and could set the ports to be in the management or provider network.

Sorry, not familiar with fuel. Again, I know I'm not directly answering your question but since you have no answers I thought this may help you think through it a little.

Sincerely, David

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Asked: 2017-02-02 15:44:52 -0500

Seen: 56 times

Last updated: Feb 06 '17