Use GVK to validate resource type

[hrk091]

Fixes: #343

Promlem

It is enforced to set Role and RoleBinding as 'Propagate' mode in the HNCConfiguration, but the validation is not enough. It is validated using GRs(GroupResources) user specified in the spec.resources field. GR includes some ambiguity and users can specify resources in several way (e.g. use empty group instead of "v1", use singular instead of plural). They are not picked up by the current isEnforcedType matcher and as a result they are registered to the activeGVKs even though duplicated. It causes the flapping between the enforced 'Propagate' state and the user given state like 'AllowPropagate' in the reconciliation phase as follows:

{"level":"info","ts":"2024-01-08T01:14:05Z","logger":"hncconfig.reconcile","msg":"Changing sync mode of the object reconciler","gvk":"rbac.authorization.k8s.io/v1, Kind=RoleBinding","oldMode":"AllowPropagate","newMode":"Propagate"}
{"level":"info","ts":"2024-01-08T01:14:05Z","logger":"hncconfig.reconcile","msg":"Changing sync mode of the object reconciler","gvk":"rbac.authorization.k8s.io/v1, Kind=RoleBinding","oldMode":"Propagate","newMode":"AllowPropagate"}
{"level":"info","ts":"2024-01-08T01:14:05Z","logger":"hncconfig.reconcile","msg":"Changing sync mode of the object reconciler","gvk":"rbac.authorization.k8s.io/v1, Kind=RoleBinding","oldMode":"AllowPropagate","newMode":"Propagate"}
{"level":"info","ts":"2024-01-08T01:14:05Z","logger":"hncconfig.reconcile","msg":"Changing sync mode of the object reconciler","gvk":"rbac.authorization.k8s.io/v1, Kind=RoleBinding","oldMode":"Propagate","newMode":"AllowPropagate"}
{"level":"info","ts":"2024-01-08T01:14:05Z","logger":"hncconfig.reconcile","msg":"Changing sync mode of the object reconciler","gvk":"rbac.authorization.k8s.io/v1, Kind=RoleBinding","oldMode":"AllowPropagate","newMode":"Propagate"}
{"level":"info","ts":"2024-01-08T01:14:05Z","logger":"hncconfig.reconcile","msg":"Changing sync mode of the object reconciler","gvk":"rbac.authorization.k8s.io/v1, Kind=RoleBinding","oldMode":"Propagate","newMode":"AllowPropagate"}
...

How to address

Use GVK instead of GR to check whether enforcedType or not on both webhook validator and reconcilier.

[linux-foundation-easycla]

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• ✅ login: hrk091 / name: Hiroki Okui (572c781, 74f1e20)

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[rjbez17]

/ok-to-test

[rjbez17]

/lgtm

[rjbez17]

/approve

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