I'm running devstack on a single VM. Everything works fine. However, there is no internet connectivity from the VM.

# ovs-vsctl show
b40c052c-9856-4e2b-8a6b-f3e3c6602eda
Bridge br-ex
    Port "qg-3265758e-52"
        Interface "qg-3265758e-52"
            type: internal
    Port "qg-74bdac22-88"
        Interface "qg-74bdac22-88"
            type: internal
    Port br-ex
        Interface br-ex
            type: internal


# ip netns show
qlbaas-ef7cfb37-e823-43ed-a48e-10e152e5733f
qdhcp-68b32f99-bf55-468e-99cd-b8d95687977b
qdhcp-83306582-6578-42a4-8994-fc5012ef4067
qrouter-8946f3a2-5397-49c1-bda1-b525f8a549a5
qrouter-8a07aba6-296a-4e10-9806-d2aa32a0d946

# ip netns exec qrouter-8946f3a2-5397-49c1-bda1-b525f8a549a5 ip route
default via 172.24.4.1 dev qg-74bdac22-88
10.0.0.0/24 dev qr-821fda97-0b  proto kernel  scope link  src 10.0.0.1
172.24.4.0/24 dev qg-74bdac22-88  proto kernel  scope link  src 172.24.4.3

Since there is no internet connectivity, cloud-init is not working. Other than cirros image, no other image boots because cloud-init is not working.

Any ideas how to enable internet connectivity into devstack?