Kong does not listen nodeport in IPv6

1

I set dual IP stack in kubernetes
(Validate IPv4/IPv6 dual-stack | Kubernetes)

I check pod dual IP stack
(Validate IPv4/IPv6 dual-stack | Kubernetes)

kubectl get pods kong-7c74b9545d-rtk6v -n cos -o go-template --template=‘{{range .status.podIPs}}{{printf “%s \n” .ip}}{{end}}’
10.3.123.118
fc00::3:7b75

IPv4 is working correctly.
Kong did not listen node port after I change ipFamily from IPv4 to IPv6 in kong-proxy service.
I check listen port by “netstat -lntp” command

[env]
kong:1.4.2, kong-ingress-controller:0.6.0
kubernetes on baremetal
IPv6 : kong-proxy
IPv4 : other services

[After IPv6 setting]
kong-proxy NodePort fc01::2b94 80:80/TCP,443:443/TCP 21m

Is there any setting I should add for IPv6 nodeport listening?

2

You need to tweak KONG_PROXY_LISTEN env var to configure Kong to listen on IPv6 interfaces in addition to IPv4.

3

Thanks for your fast answer

I tried to change KONG_PROXY_LISTEN
KONG_PROXY_LISTEN=“0.0.0.0:8000,0.0.0.0:8443 ssl,[::]:8000,[::]:8443 ssl”
KONG_PROXY_LISTEN="[::]:8000,[::]:8443 ssl"

but, it did not working, node port was not listening
Is there any other configuration about IPv6?

4

Your config looks correct. Can you share the generated nginx.conf content to help further debugging?