Bare metal setup with 2 different external IP blocks... need advice

[morpig]

Hi,

We plan to migrate from the now-(closed) source Gateway to Envoy. Everything is well, but we need advice:

Our current setup: Bare metal cluster + Cilium CNI + Cilium L2 announcement

We're able to get gateway accessible from external traffic, however, it is only applicable to One IP address only per gateway. We do not have any redundancies in case the node that owns the IP dies.

In our previous setup, we have 2 services with IPs owned by different nodes.

kong-gateway-proxy                   LoadBalancer   10.43.99.54     1.1.1.1   80:30480/TCP,443:30293/TCP      85d
kong-gateway-proxy-2                 LoadBalancer   10.43.174.214   2.2.2.2     80:30777/TCP,443:31346/TCP      85d

Since we're using Gateway API and we're not familiar with, how can we do a similar setup with our previous one?

Explored option:
multiple gateways, each with its own IP address, but this requires HTTPRoute attaching to every gateway.

Moreover, each gateway would spin up its own pods/ds/deployment, which wastes cluster resources.

[morpig]

Read a bit about merged gateways, but based on docs all gateways merged will be allocated the same external IP.

please correct us