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  1. OpenShift Request For Enhancement
  2. RFE-6242

Ability to specify a pre-created loadbalancer IP on OpenStack

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    • Resolution: Done
    • Icon: Major Major
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      This is a feature request. Sorry, I couldn't find anywhere else to file it. Our team can also potentially implement this feature, so really we're looking for design input before possibly submitting a PR.

      User story:

      As a user of on-prem OpenShift, I need to manage DNS for my OpenShift cluster manually. I can already specify an IP address for the API server, but I cannot do this for Ingress. This means that I have to:

      • Manually create the API endpoint IP
      • Add DNS for the API endpoint
      • Create the cluster
      • Discover the created Ingress endpoint
      • Add DNS for the Ingress endpoint

      I would like to simplify this workflow to:

      • Manually create the API and Ingress endpoint IPs
      • Add DNS for the API and Ingress endpoints
      • Create the cluster

      Implementation suggestion:

      Our specific target is OpenStack. We could add `OpenStackLoadBalancerParameters` to `ProviderLoadBalancerParameters`, but the parameter we would be adding is 'loadBalancerIP`. This isn't OpenStack-specific. For example, it would be equally applicable to users of either OpenStack's built-in Octavia loadbalancer, or MetalLB, both of which may reasonably be deployed on OpenStack.

      I suggest adding an optional LoadBalancerIP to LoadBalancerStrategy here: https://github.com/openshift/cluster-ingress-operator/blob/8252ac492c04d161fbcf60ef82af2989c99f4a9d/vendor/github.com/openshift/api/operator/v1/types_ingress.go#L395-L440

      This would be used to pre-populate spec.loadBalancerIP when creating the Service for the default router.

            ddharwar@redhat.com Deepthi Dharwar
            rhn-gps-mbooth Matthew Booth
            Emilien Macchi
            Hongan Li Hongan Li
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