Modify env var to align namespace change

kustomize build config/default modifies the manager's namespace. CONTROLLER_NAMESPACE should be modified as well for the change.

Signed-off-by: Shunpoco <tkngsnsk313320@gmail.com>

Author: Shunpoco

config/default/kustomization.yaml

@@ -27,6 +27,8 @@ resources:
 #- ../prometheus
 
 patches:
+- path: manager_config_patch.yaml
+
 # Protect the /metrics endpoint by putting it behind auth.
 # If you want your controller-manager to expose the /metrics
 # endpoint w/o any authn/z, please comment the following line.

config/default/manager_config_patch.yaml

@@ -8,3 +8,8 @@ spec:
     spec:
       containers:
       - name: manager
+        env:
+        # It should be modified as the manager's namespace is
+        # modified by the kustomization.
+        - name: CONTROLLER_NAMESPACE
+          value: runtime-class-manager-system