unable to view details page of router if the router has more than one external gateways attached

[lahari]

Unable to view details page of the router when more than one gateway interface is attached.

The same can be achieved in CLI through the following commands

neutron net-create --provider:network_type vlan --provider:physical_network default --provider:segmentation_id 3956 --router:external=True BAT-T0-bgw5

neutron subnet-create --name BAT-T0-bgw5-sub1 --gateway 11.127.0.1 --enable_dhcp=False BAT-T0-bgw5 11.127.0.0/29

neutron port-create BAT-T0-bgw5 --name BAT-T0-bgw5-bgw-port --device-owner baremetal:BGW-1 --binding:host_id BGW-1 --fixed-ip ip_address=11.127.0.1

neutron net-create --provider:network_type vlan --provider:physical_network default --provider:segmentation_id 3957 --router:external=True BAT-T0-bgw6

neutron subnet-create --name BAT-T0-bgw6-sub1 --gateway 11.127.0.9 --enable_dhcp=False BAT-T0-bgw6 11.127.0.8/29

neutron port-create BAT-T0-bgw6 --name BAT-T0-bgw6-bgw-port --device-owner baremetal:BGW-2 --binding:host_id BGW-2 --fixed-ip ip_address=11.127.0.9

neutron router-create peso-router-bgw1
neutron router-interface-add peso-router-bgw1 BAT-T0-bgw5-sub1
neutron router-interface-add peso-router-bgw1 BAT-T0-bgw6-sub1

external_gateway_info | {"network_id_2": "a36dc0e0-92af-4984-ab7d-7907032d426c", "network_id_1": "e31e4364-1885-452f-a476-4b7f19d7fe7e"} |

Now click on router properties in UI. The UI displays something went wrong
==============================================================================
============= Cause of the issue=========================================
In details method views.py in project router
if router.external_gateway_info:

            ext_net_id = router.external_gateway_info['network_id']

The external_gateway_info expects a key 'network_id'
But when more than one gateway is created, they are created with different keys('network_id_1' and 'network_id_2'), raising key error
================Possible Solution====================================
So the dictionary should be iterated to get items and the values of the keys should be retrieved

[Ying Zuo (yingzuo)]

I tried to do the CLI commands but got errors for these two commands:
neutron router-interface-add peso-router-bgw1 BAT-T0-bgw5-sub1
neutron router-interface-add peso-router-bgw1 BAT-T0-bgw6-sub1

I then added two interfaces to the router in Horizon and the router details panel is good.

You mentioned the external gateways of a router at the end, but that should be added with CLI command "neutron router-gateway-add" instead of "neutron router-interface-add". And there's only one gateway can be set with Horizon or CLI.

[lahari (ananda-bhavaraju)]

Thank you ying...we have customized OS and that's why I was able to perform these actions
I have marked the bug as invalid