I used to work with Openshift/OKD cluster deployed in AWS and there it was possible to connect cluster to some domain name from Route53. Then as soon as I was deploying ingress with some hosts mappings (and the hosts defined in ingres were subdomains of the basis domain) all necessary lb rules (Routes in Openshift) and subdomain itself were created by Openshift and were directly available. For example: Openshift is connected to domain "somedomain.com" which is registered in Route53. In ingress I have the host mapping like:
hosts:
- host: sub1.somedomain.com
paths:
- path
After deployment I can reach sub1.somedomain.com. Is this kind of functionality available in GKE? So far I have seen only mapping to static IP.
Also I red here https://cloud.google.com/kubernetes-engine/docs/how-to/ingress-http2 that if I need to connect service with ingress, the service have to be of type NodePort. Is it realy so? In Openshift it was not required any normal ClusterIP service could be connected to ingress.
Thanks in advance!
So far GKE does not provide the possibility to dynamically create subdomains. The wished situation would be if GKE cluster can be set some DNS zone managed in GCP and there is a mimik of OpenShift Routes using for example ingress annotations.
But the reality tight now - you have to create subdomain or domain youself as well as IP address wich you connect this domain to. And this particular GCP IP address (using name) can be connected to ingress using annotations. Or it can be used in loadbalancer service.