Difference between revisions of "NeutronDevstack"
(Apparently won't work unless the quantum agent on the compute node can refer to the main server (presumably since the DB comms link was broken).) |
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'''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 | '''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 | ||
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| + | == Using Quantum == | ||
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| + | Now you have Quantum up and running, look at [[RunningQuantumV2Api]] to find out how to make of v2 Quantum. The commands you need to use to create a network in v2 have changed since the Essex documentation. | ||
Revision as of 11:08, 23 August 2012
Basic Setup
Note: This description covers only Quantum's v2 API (i.e. Folsom code).
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 quantum LIBVIRT_FIREWALL_DRIVER=nova.virt.firewall.NoopFirewallDriver Q_PLUGIN=openvswitch NOVA_USE_QUANTUM_API=v2
Then run stack.sh as normal.
Note: For more information about creating networks/subnets and VMs attached to them, see: RunningQuantumV2Api .
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 quantum Q_PLUGIN=openvswitch NOVA_USE_QUANTUM_API=v2
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,q-dhcp Q_PLUGIN=openvswitch NOVA_USE_QUANTUM_API=v2 LIBVIRT_FIREWALL_DRIVER=nova.virt.firewall.NoopFirewallDriver 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
Using Quantum
Now you have Quantum up and running, look at RunningQuantumV2Api to find out how to make of v2 Quantum. The commands you need to use to create a network in v2 have changed since the Essex documentation.
