Hi Openstack community !
I have a question regarding Openstack Ansible (OSA) and one deployement
scenario "Scenario - OpenDaylight and Open vSwitch" (link below).
https://docs.openstack.org/openstack-ansible-os_neutron/latest/app-opendaylight.html
This is a lab test and I take inspiration from "Test environment"
example :
https://docs.openstack.org/openstack-ansible/queens/user/test/example.html
First, I have already tried and achieve to use the "OSA Scenario - Using
Open vSwitch" (link below), which was necessary to understand before
trying the ODL + OvS scenario.
https://docs.openstack.org/openstack-ansible-os_neutron/latest/app-openvswitch.html
This means I was able to deploy Openstack with OvS as network driver and
I was able to instatiates VMs on tenant VxLAN network, test networks
between VMs, use floating IPs, etc..
Now I want to try the "Scenario - OpenDaylight and Open vSwitch"
scenario because I want to deploy my Openstack environnement with the
"networking-sfc" driver activated.
I understand that I must modify the config file
"/etc/openstack_deploy/user_variables.yml" like this :
```
# /etc/openstack_deploy/user_variables.yml
### Ensure the openvswitch kernel module is loaded
openstack_host_specific_kernel_modules:
- name: "openvswitch"
pattern: "CONFIG_OPENVSWITCH"
group: "network_hosts"
### Use OpenDaylight SDN Controller
neutron_plugin_type: "ml2.opendaylight"
odl_ip: "{{
hostvars[groups['opendaylight'][0]]['ansible_default_ipv4']['address']
}}"
neutron_opendaylight_conf_ini_overrides:
ml2_odl:
url: "http://{{ odl_ip }}:8180/controller/nb/v2/neutron"
username: <username>
password: <password>
neutron_plugin_base:
- router
- metering
- networking_sfc.services.flowclassifier.plugin.FlowClassifierPlugin
- networking_sfc.services.sfc.plugin.SfcPlugin
```
But there are no information about the
"/etc/openstack_deploy/openstack_user_config.yml" config file.
I am not sure if I understand where ansible get the value of "{{ odl_ip
}}" and "{{ hostvars[group....
In the file "/opt/openstack-ansible/tests/test_inventory.py", I find out
that there is an entry for "opendaylight" in the
class TestAnsibleInventoryFormatConstraints(unittest.TestCase).
I assumed I must modify
"/etc/openstack_deploy/openstack_user_config.yml" like this :
```
# /etc/openstack_deploy/openstack_user_config.yml
[...]
# horizon
dashboard_hosts:
infra41:
ip: infra41.dom4.net
# neutron server, agents (L3, etc)
network_hosts:
network41:
ip: network41.dom4.net
opendaylight:
network41:
ip: network41.dom4.net
[...]
```
I have an infra node (with most of Openstack core services) and a
network node (dedicated to neutron). On my first try, I wanted to
install ODL on the network node (because I thought it will be deployed
in a LXC container). But I can dedicate an host to ODL if needed.
Could someone gives me some hints on this ? My goal is to deploy my
Openstack environnement with the "networking-sfc" driver, and using OSA.
Maybe there are other method like "kolla-ansible", but I found that OSA
has a more dense documentation.
Thanks you for your time.
--
Nicolas
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