Description of problem:

A customer is using Ingresses in their OpenShift Container Platform 4.17 cluster. They are relying on the "Ingress-to-Route" functionality of OpenShift Container Platform to create their Route objects.

The customer is now seeing multiple "UnmanagedRoutes" alerts in their cluster, for example the following:

  - activeAt: "2025-10-15T09:53:22.786962619Z"
    annotations:
      description: This alert fires when there is a Route owned by an unmanaged Ingress.
      message: Route example-namespace/example-web-modeler-gxspk is owned by
        an unmanaged Ingress.
      summary: Route owned by an Ingress no longer managed
    labels:
      alertname: UnmanagedRoutes
      container: route-controller-manager
      endpoint: https
      host: webmodeler-example-namespace.cluster.foobar.com
      instance: 10.125.10.249:8443
      job: route-controller-manager
      name: example-web-modeler-gxspk
      namespace: example-namespace
      pod: route-controller-manager-7454dbc847-42vdd
      service: route-controller-manager
      severity: warning
    state: firing
    value: "1e+00"

Examining the Route and Ingress shows that:

• The Route has a valid Ingress as Owner
• Ingress "example-web-modeler" is in same namespace
• `ingressClassName: openshift-default` is set
• Spec `controller: openshift.io/ingress-to-route` is set on the "openshift-default" IngressClass

We believe this is a Bug in the metrics code that determines if an Ingress is managed or unmanaged: https://github.com/openshift/route-controller-manager/blob/release-4.17/pkg/route/ingress/metrics.go#L84

This issue may only appear if there are both managed and unmanaged Ingresses in the same namespace.

Version-Release number of selected component (if applicable):

OpenShift Container Platform 4.17.28

How reproducible:

Always on customer cluster

Steps to Reproduce:

1. On an OpenShift Container Platform 4.17.28 cluster, create the namespace that the customer uses
2. Apply the Ingress and Route manifests from the customer Support Case
3. Observe the alerts firing on OpenShift Container Platform

Actual results:

Despite the Ingress being configured correctly, we see the "UnmanagedRoutes" alert

Expected results:

When all Ingresses are managed, no alert is firing

• Additional info:*

• "must-gather" and "inspect" files are available in the attached Support Case
• Ingress and IngressClass YAML are also provided