Hi, I was trying to integrate ODL with OpenStack (Queens) using Kolla-ansible. I did the following configuration in globals.yaml:

neutron_plugin_agent: "opendaylight"
 enable_opendaylight: "yes"

Also, I have to do the following modifications in kolla-ansible (stable/queens) code for my setup to be up: https://review.openstack.org/#/c/571441/

After successful deployment, ml2_conf.ini looks like this:

[ml2]
type_drivers = flat,vlan,vxlan
tenant_network_types = vxlan
mechanism_drivers = opendaylight_v2
extension_drivers = port_security

[ml2_odl]
url = http://172.16.141.167:8088/controller/nb/v2/neutron
username = admin
password = gOI3BfzrDTNM2y7WFOkQavc6Z8EUe6BLhSBirgJN
port_binding_controller = pseudo-agentdb-binding

[ml2_type_vlan]
network_vlan_ranges =

[ml2_type_flat]
flat_networks = physnet1

[ml2_type_vxlan]
vni_ranges = 1:1000
vxlan_group = 239.1.1.1

[securitygroup]
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver

[agent]
tunnel_types = vxlan
l2_population = true
arp_responder = true

[ovs]
bridge_mappings = physnet1:br-ex
datapath_type = system
ovsdb_connection = tcp:127.0.0.1:6640
local_ip = 172.16.141.39

docker exec openvswitch_vsiwtchd ovs-vsctl show on network node:

  (openvswitch-vswitchd)[root@CONTROLLER397662 /]# ovs-vsctl show
4369a98a-4108-415d-afb6-137a1d729056
    Manager "tcp:172.16.141.39:6641"
        is_connected: true
    Bridge br-int
        Controller "tcp:172.16.141.39:6653"
            is_connected: true
        fail_mode: secure
        Port "tap482b5942-2e"
            tag: 4095
            Interface "tap482b5942-2e"
                type: internal
        Port br-ex-patch
            Interface br-ex-patch
                type: patch
                options: {peer=br-ex-int-patch}
        Port "tapa79c00cd-de"
            tag: 4095
            Interface "tapa79c00cd-de"
                type: internal
        Port br-int
            Interface br-int
                type: internal
        Port "tun4475255a1c1"
            Interface "tun4475255a1c1"
                type: vxlan
                options: {key=flow, local_ip="172.16.141.39", remote_ip="172.16.141.36"}
    Bridge br-ex
        Port "eno2"
            Interface "eno2"
        Port br-ex
            Interface br-ex
                type: internal
        Port br-ex-int-patch
            Interface br-ex-int-patch
                type: patch
                options: {peer=br-ex-patch}

docker exec openvswitch_vsiwtchd ovs-vsctl show on compute node:

(openvswitch-vswitchd)[root@COMPUTE362635 /]# ovs-vsctl show
9903fa01-adc8-4c8f-88b1-c5c779de46ae
    Manager "tcp:172.16.141.39:6641"
        is_connected: true
    Bridge br-ex
        Port br-ex
            Interface br-ex
                type: internal
        Port "eno2"
            Interface "eno2"
        Port br-ex-int-patch
            Interface br-ex-int-patch
                type: patch
                options: {peer=br-ex-patch}
    Bridge br-int
        Controller "tcp:172.16.141.39:6653"
            is_connected: true
        fail_mode: secure
        Port "tun2e2c38b74f9"
            Interface "tun2e2c38b74f9"
                type: vxlan
                options: {key=flow, local_ip="172.16.141.36", remote_ip="172.16.141.39"}
        Port br-ex-patch
            Interface br-ex-patch
                type: patch
                options: {peer=br-ex-int-patch}
        Port br-int
            Interface br-int
                type: internal

Also, I tested ODL integration with OpenStack with the following command:

curl -u admin:gOI3BfzrDTNM2y7WFOkQavc6Z8EUe6BLhSBirgJN http://172.16.141.167:8088/controller/nb/v2/neutron/networks (http://172.16.141.167:8088/controller...)

Output:

{
   "networks" : [ {
      "id" : "bd8db3a8-2b30-4083-a8b3-b3fd46401142",
      "tenant_id" : "bd8db3a82b304083a8b3b3fd46401142",
      "project_id" : "bd8db3a8-2b30-4083-a8b3-b3fd46401142",
      "name" : "Sync Canary Network",
      "admin_state_up" : false,
      "status" : "ACTIVE",
      "shared" : false,
      "router:external" : false,
      "provider:network_type" : "flat",
      "segments" : [ ]
   }, {
      "id" : "a280dcec-3402-46f6-9d95-39868bd36eda",
      "tenant_id" : "3a53dc2483564d8c9d993ead57da1362",
      "project_id" : "3a53dc2483564d8c9d993ead57da1362",
      "revision_number" : 2,
      "name" : "demo-net",
      "admin_state_up" : true,
      "status" : "ACTIVE",
      "shared" : false,
      "router:external" : false,
      "provider:network_type" : "vxlan",
      "provider:segmentation_id" : "25",
      "segments" : [ ]
   }, {
      "id" : "af3f87f8-ba87-4972-834b-81eb69c77bd0",
      "tenant_id" : "3a53dc2483564d8c9d993ead57da1362",
      "project_id" : "3a53dc2483564d8c9d993ead57da1362",
      "revision_number" : 5,
      "name" : "public1",
      "admin_state_up" : true,
      "status" : "ACTIVE",
      "shared" : false,
      "router:external" : true,
      "provider:network_type" : "flat",
      "provider:physical_network" : "physnet1",
      "segments" : [ ]
   } ]
}

But when I launched cirros instances on public network, My VMs donot get IP from DHCP. Although, VMs on private network are working fine.

Please help regarding this issue.

Regards, Mansi