Enable configuring the controller namespace

The `ClusterRoleBinding` had a hardcoded namespace, preventing the
controller from running in a custom namespace.

Signed-off-by: Dale Haiducek <19750917+dhaiducek@users.noreply.github.com>

Makefile

@@ -40,6 +40,12 @@ REGISTRY ?= quay.io/open-cluster-management
 TAG ?= latest
 IMAGE_NAME_AND_VERSION ?= $(REGISTRY)/$(IMG)
 
+# Fix sed issues on mac by using GSED
+SED="sed"
+ifeq ($(GOOS), darwin)
+  SED="gsed"
+endif
+
 include build/common/Makefile.common.mk
 
 ############################################################
@@ -86,8 +92,10 @@ build-images:
 
 # Deploy controller in the configured Kubernetes cluster in ~/.kube/config
 .PHONY: deploy
-deploy: generate-operator-yaml
+deploy: generate-operator-yaml create-ns
+	$(SED) -i 's/\(namespace: \)open-cluster-management-agent-addon/\1$(CONTROLLER_NAMESPACE)/' -i deploy/operator.yaml 
 	kubectl apply -f deploy/operator.yaml -n $(CONTROLLER_NAMESPACE)
+	$(SED) -i 's/\(namespace: \)$(CONTROLLER_NAMESPACE)/\1open-cluster-management-agent-addon/' -i deploy/operator.yaml 
 	kubectl apply -f deploy/crds/policy.open-cluster-management.io_configurationpolicies.yaml -n $(CONTROLLER_NAMESPACE)
 	kubectl set env deployment/$(IMG) -n $(CONTROLLER_NAMESPACE) WATCH_NAMESPACE=$(WATCH_NAMESPACE)
 

README.md

@@ -122,7 +122,7 @@ to learn how to get involved.
 
 ### Steps for deployment
 
-  - Build container image
+  - (optional) Build container image
     ```bash
     make build-images
     ```
@@ -136,19 +136,16 @@ to learn how to get involved.
 
     The controller is deployed to a namespace defined in `CONTROLLER_NAMESPACE` and monitors the namepace defined in `WATCH_NAMESPACE` for `ConfigurationPolicy` resources.
 
-    1. Create the deployment namespaces
+    1. Deploy the controller and related resources
        ```bash
-       make create-ns
+       make deploy
        ```
+
        The deployment namespaces are configurable with:
        ```bash
        export CONTROLLER_NAMESPACE=''  # (defaults to 'open-cluster-management-agent-addon')
        export WATCH_NAMESPACE=''       # (defaults to 'managed')
        ```
-    2. Deploy the controller and related resources
-       ```bash
-       make deploy
-       ```
     **NOTE:** Please be aware of the community's [deployment images](https://github.com/open-cluster-management-io/community#deployment-images) special note.