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Difference between revisions of "NeutronDevstack"

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ENABLED_SERVICES=n-cpu,rabbit,g-api,quantum,q-agt,q-dhcp
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ENABLED_SERVICES=n-cpu,rabbit,g-api,quantum,q-agt
 
SERVICE_HOST=[IP of controller node]
 
SERVICE_HOST=[IP of controller node]
 
MYSQL_HOST=$SERVICE_HOST
 
MYSQL_HOST=$SERVICE_HOST

Revision as of 21:40, 2 October 2012

Basic Setup

In order to use Quantum with devstack (http://devstack.org) a single node setup, you'll need the following settings in your localrc (see this page for more details on localrc).


disable_service n-net
enable_service q-svc
enable_service q-agt
enable_service q-dhcp
enable_service q-l3
enable_service quantum


Then run stack.sh as normal.

See the Quantum Admin Guide for details on interacting with Quantum:  http://docs.openstack.org/trunk/openstack-network/admin/content/index.html 

Multi-Node Setup

A more interesting setup involves running multiple compute nodes, with Quantum networks connecting VMs on different compute nodes.

You should run at least one "controller node", which should have a stackrc that includes at least:


disable_service n-net
enable_service q-svc
enable_service q-agt
enable_service q-dhcp
enable_service q-l3
enable_service quantum


You likely want to change your localrc to run a scheduler that will balance VMs across hosts:


SCHEDULER=nova.scheduler.simple.SimpleScheduler


You can then run many compute nodes, each of which should have a stackrc which includes the following, with the IP address of the above controller node:


ENABLED_SERVICES=n-cpu,rabbit,g-api,quantum,q-agt
SERVICE_HOST=[IP of controller node]
MYSQL_HOST=$SERVICE_HOST
RABBIT_HOST=$SERVICE_HOST
Q_HOST=$SERVICE_HOST


Note: the need to include 'g-api' and 'rabbit' here seems to be a bug, which may have been fixed by the time you're reading this. Without it, nova-compute dies because it can't import the glance.common library. This process does not actually need to be running on this host, we just need a way to make sure the glance.common library is installed. If 'rabbit' is not specified, nova-compute also will try to connect to rabbit on localhost, not the "controller host". See the following link for info on both issues: https://answers.launchpad.net/devstack/+question/197749