fix: properly set delegates to specific instances to call their methods

We need to do so so that we have a semblance of polymorphism: the
generic functions work on the delegate and generic role/rolebinding
need to set their delegate to specific instances when these are created
so that the generic functions call the most specific versions first,
which can then default to non-overridden versions if not implemented…
Writing OOP code in go be like 🤷‍ or 🤦‍

pkg/controller/capability/role.go

@@ -10,6 +10,8 @@ type role struct {
 }
 
 func newRole(owner framework.Resource) role {
-	r := controller.NewOwnedRole(owner, func() string { return "scc-privileged-role" })
-	return role{Role: r}
+	generic := controller.NewOwnedRole(owner, func() string { return "scc-privileged-role" })
+	r := role{Role: generic}
+	generic.SetDelegate(r)
+	return r
 }

pkg/controller/capability/rolebinding.go

@@ -12,11 +12,13 @@ type roleBinding struct {
 }
 
 func newRoleBinding(owner framework.Resource) roleBinding {
-	rb := controller.NewOwnedRoleBinding(owner,
+	generic := controller.NewOwnedRoleBinding(owner,
 		func() string { return "use-scc-privileged" },
 		func() string { return newRole(owner).Name() },
 		func() string { return newPostgres(owner).Name() })
-	return roleBinding{RoleBinding: rb}
+	rb := roleBinding{RoleBinding: generic}
+	generic.SetDelegate(rb)
+	return rb
 }
 
 func (res roleBinding) NewInstanceWith(owner framework.Resource) framework.DependentResource {

pkg/controller/component/role.go

@@ -12,8 +12,10 @@ type role struct {
 }
 
 func newRole(owner framework.Resource) role {
-	r := controller.NewOwnedRole(owner, func() string { return "image-scc-privileged-role" })
-	return role{Role: r}
+	generic := controller.NewOwnedRole(owner, func() string { return "image-scc-privileged-role" })
+	r := role{Role: generic}
+	generic.SetDelegate(r) // we need to set the parent's delegate to the object we're creating so that its specific methods are called
+	return r
 }
 
 func (res role) NewInstanceWith(owner framework.Resource) framework.DependentResource {

pkg/controller/component/rolebinding.go

@@ -10,11 +10,13 @@ type roleBinding struct {
 }
 
 func newRoleBinding(owner framework.Resource) roleBinding {
-	rb := controller.NewOwnedRoleBinding(owner,
+	generic := controller.NewOwnedRoleBinding(owner,
 		func() string { return "use-image-scc-privileged" },
 		func() string { return newRole(owner).Name() },
 		func() string { return ServiceAccountName(owner) })
-	return roleBinding{RoleBinding: rb}
+	rb := roleBinding{RoleBinding: generic}
+	generic.SetDelegate(rb)
+	return rb
 }
 
 func (res roleBinding) NewInstanceWith(owner framework.Resource) framework.DependentResource {