[Rdo-list] [RDO] deployment details about neutron

[Kun Huang]

hi all

I have some questions about using RDO deploy neutron (based on ovs). I need:

node1:
- neutron server

node2 (all others):
- dhcp agent
- ovs agent
- l3 agent

Now in my understanding, CONFIG_NEUTRON_SERVER_HOST manages neutron
server, CONFIG_NEUTRON_DHCP_HOSTS manages dhcp agent,
CONFIG_NEUTRON_L3_HOSTS manages l3 agent, and CONFIG_NEUTRON_OVS_HOST
l2/ovs agent. Are those correct?

Another question is after reading codes in neutron_350.py, I found
CONFIG_NEUTRON_L3_HOSTS may not work, because of [0]. It is same about
CONFIG_NEUTRON_OVS_HOST [1].

So are there some principles like "l2 agent must be installed on same
host with neutron server"

[0] https://github.com/stackforge/packstack/blob/master/packstack/plugins/neutron_350.py#L803-L804
[1] https://github.com/stackforge/packstack/blob/master/packstack/plugins/neutron_350.py#L913-L916