When attempting to annotate ingress controller and route, first create the route without the annotation and then annotate using OC command or apply annotated route yaml. if you attempt to add the annotation without the route not being present an error occurs

OCP-4.16 and OCP-4.17    

    Always

    1. Navigate to ingress controller doc, converting HTTP header case: https://docs.openshift.com/container-platform/4.16/networking/ingress-operator.html#nw-ingress-converting-http-header-case_configuring-ingress       2. Attempt step 2 for the annotation (route is not available)
    3. Attempt to apply route YAML, get an error
    

    oc annotate routes/my-application haproxy.router.openshift.io/h1-adjust-case=true
Error from server (NotFound): routes.route.openshift.io "my-application" not found

 oc apply -f route.yaml 
error: unable to decode "route.yaml": json: cannot unmarshal bool into Go struct field ObjectMeta.metadata.annotations of type string

    my-application route should successfully be annotated

    should add a portion to create the my-application route using YAML below first, then use oc command/ apply yaml to annotate route

apiVersion: route.openshift.io/v1
kind: Route
metadata:
 name: my-application
 namespace: default
spec:
 to:
  kind: Service
  name: my-application