Did you ever had to manually trace traffic to or from an OpenStack instance?
This tool is hopefully useful for operators which already had to deep dive into neutron complexity to figure out why an instance network connectivity was broken.
Given the uuid of an instance running on OpenStack, it will show you all the details on how the network plumbing is being setup by Neutron.
- Admin access to OpenStack APIs (environment variables or CLI arguments)
- SSH configuration for password-less login on controllers and compute nodes using the same hostname than returned by OpenStack APIs
root@deploy:~/neutrinator# ./neutrinator 465f35fb-f244-4944-b6ac-11a15fcb2661
Server 465f35fb-f244-4944-b6ac-11a15fcb2661
Name: k8s-ci-136-master
Livirt domain: instance-00000eb2
Compute node: os-compute1.openstack.local
Port a3d85e15-c7e4-44a3-bf51-03fc02501a4f
Status: ACTIVE
IPs: 10.8.10.12
MAC: fa:16:3e:af:5c:fe
Type: compute:nova
Host: os-compute1
Binding Host: os-compute1
Network: 6a83dc8f-202c-465d-9606-2496fd45bbdb
Floating IP 172.0.0.10
Path:
Tap tapa3d85e15-c7
Bridge brq6a83dc8f-20
Vxlan vxlan-94 (vxlan id 94 group 239.1.1.1 dev br-vxlan srcport 0 0 dstport 8472 ageing 300)
DHCP Agent ba084440-2bb4-4557-9a48-53ffeb23f833
Port ee017006-367a-4f9e-bb97-7a54330853fe
Status: ACTIVE
IPs: 10.8.10.2
MAC: fa:16:3e:7e:17:f8
Type: network:dhcp
Host: os-infra1
Binding Host: os-infra1
Network: 6a83dc8f-202c-465d-9606-2496fd45bbdb
Path:
Veth ns-ee017006-36 (qdhcp-6a83dc8f-202c-465d-9606-2496fd45bbdb)
Tap tapee017006-36
Bridge brq6a83dc8f-20
Vxlan vxlan-94 (vxlan id 94 group 239.1.1.1 dev br-vxlan srcport 0 0 dstport 8472 ageing 300)
Router a7844dbb-afb4-44ec-9c47-601df4572261
L3 Agent c8236017-21d7-428c-b413-69968aab82a3
Role: master
Alive: True
State: None
Host: os-infra1
Port 382e1f94-952b-4e61-9c04-86c05537bdfb
Status: ACTIVE
IPs: 172.0.0.5
MAC: fa:16:3e:a6:1d:29
Type: network:router_gateway
Host: os-infra1
Binding Host: os-infra1
Network: 9ca40e75-3298-44c2-922d-356e12ebb6aa
Path:
Veth qg-382e1f94-95 (qrouter-a7844dbb-afb4-44ec-9c47-601df4572261)
Veth tap382e1f94-95
Bridge brq9ca40e75-32
Interface br-vlan.501
Port 3b7de152-fe94-482d-8ccb-2b830151d668
Status: ACTIVE
IPs: 10.8.10.1
MAC: fa:16:3e:a6:89:a4
Type: network:router_interface
Host: os-infra1
Binding Host: os-infra1
Network: 6a83dc8f-202c-465d-9606-2496fd45bbdb
Path:
Veth qr-3b7de152-fe (qrouter-a7844dbb-afb4-44ec-9c47-601df4572261)
Veth tap3b7de152-fe
Bridge brq6a83dc8f-20
Vxlan vxlan-94 (vxlan id 94 group 239.1.1.1 dev br-vxlan srcport 0 0 dstport 8472 ageing 300)François Deppierraz francois@ctrlaltdel.ch
GPLv3