User Story:

As a user, I want to be able to:

• specify a pre-created compute_address for the *.apps load balancer
  • installconfig.platform.gcp.ingressAddress

so that I can achieve

• deploy an IPI cluster using Shared VPC with insufficient permissions to manage DNS resources in the Host Project.
• where the specified *.apps compute_address is consumed by the load balancer in Terraform.

Acceptance Criteria:

Description of criteria:

• The install-config is updated to accept the ingressAddress resource from the Host Project
• and is validated to exist in the Host Project
• The ingressAddress is added to the cloud dns manifest (or elsewhere) to be passed on to the gcp legacy-cloud-provider

(optional) Out of Scope:

The work to modify the DNS behavior is part of another story.
The work to enable thelegacy-cloud-provider to use this address is out of scope, but needs to be captured in another card.

Engineering Details:

• openshift installer
  • https://github.com/openshift/installer/blob/fd00a659c7027c7df0386bfa94c809a811f7478e/pkg/asset/manifests/ingress.go#L20
  • https://github.com/openshift/installer/blob/fd00a659c7027c7df0386bfa94c809a811f7478e/pkg/asset/manifests/ingress.go#L111
  • https://github.com/openshift/api/blob/master/config/v1/types_ingress.go
• cluster-ingress-operator
  • https://github.com/openshift/cluster-ingress-operator/blob/master/pkg/operator/controller/ingress/load_balancer_service.go
• k8s legacy-cloud-provider
  • https://github.com/openshift/origin/blob/57b52e0a9528027448422d678c4ef682dfc0b885/vendor/k8s.io/legacy-cloud-providers/gce/gce_loadbalancer_internal.go#L949
  • https://github.com/openshift/origin/blob/57b52e0a9528027448422d678c4ef682dfc0b885/vendor/k8s.io/api/core/v1/types.go#L4367