diff --git a/README.md b/README.md
index 72b54ee2..2316cf68 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,35 @@
 
 An [Ansible Tower](https://www.ansible.com/products/tower) operator for Kubernetes built with [Operator SDK](https://github.com/operator-framework/operator-sdk) and Ansible.
 
+## Purpose
+
+There are already OpenShift/Kubernetes installers available for both AWX and Ansible Tower:
+
+  - [AWX on Kubernetes](https://github.com/ansible/awx/blob/devel/INSTALL.md#kubernetes)
+  - [Ansible Tower on Kubernetes](https://docs.ansible.com/ansible-tower/latest/html/administration/openshift_configuration.html)
+
+This operator is meant to provide a more Kubernetes-native installation method for Ansible Tower or AWX via a Tower Custom Resource Definition (CRD).
+
+So instead of having to maintain a separate playbook, inventory, and installation configuration for each Tower instance, you can deploy the following Custom Resource (CR) to an existing Kubernetes or OpenShift cluster:
+
+    apiVersion: tower.ansible.com/v1alpha1
+    kind: Tower
+    metadata:
+      name: tower
+      namespace: ansible-tower
+    spec:
+      tower_hostname: tower.mycompany.com
+      tower_secret_key: aabbcc
+      
+      tower_admin_user: test
+      tower_admin_password: changeme
+
+After a few minutes, your new Tower instance will be accessible at `http://tower.mycompany.com/` (assuming your cluster has an Ingress controller configured).
+
+## Usage
+
+TODO: See [Issue #4](https://github.com/geerlingguy/tower-operator/issues/4).
+
 ## Testing
 
 This Operator includes a [Molecule](https://molecule.readthedocs.io/en/stable/)-based test environment, which can be executed standalone in Docker (e.g. in CI or in a single Docker container anywhere), or inside any kind of Kubernetes cluster (e.g. Minikube).
diff --git a/deploy/crds/tower_v1alpha1_tower_cr.yaml b/deploy/crds/tower_v1alpha1_tower_cr.yaml
index 7bb13611..5ef2e375 100644
--- a/deploy/crds/tower_v1alpha1_tower_cr.yaml
+++ b/deploy/crds/tower_v1alpha1_tower_cr.yaml
@@ -6,12 +6,22 @@ metadata:
 spec:
   tower_hostname: example-tower.test
   tower_secret_key: aabbcc
+
   tower_admin_user: test
   tower_admin_password: changeme
-  tower_task_image: ansible/awx_task:9.0.1
-  tower_web_image: ansible/awx_web:9.0.1
+
+  # Use these for Ansible Tower.
+  tower_task_image: registry.access.redhat.com/ansible-tower-35/ansible-tower:3.5.3
+  tower_web_image: registry.access.redhat.com/ansible-tower-35/ansible-tower:3.5.3
+
+  # Use these for Ansible AWX.
+  # tower_task_image: ansible/awx_task:9.0.1
+  # tower_web_image: ansible/awx_web:9.0.1
+
   tower_memcached_image: memcached:alpine
+
   tower_rabbitmq_image: rabbitmq:3
+
   tower_postgres_pass: awxpass
   tower_postgres_image: postgres:9.6
   tower_postgres_storage_request: 8Gi
diff --git a/roles/tower/defaults/main.yml b/roles/tower/defaults/main.yml
index 7f89d9d9..bf139f29 100644
--- a/roles/tower/defaults/main.yml
+++ b/roles/tower/defaults/main.yml
@@ -1,12 +1,22 @@
 ---
 tower_hostname: example-tower.test
 tower_secret_key: aabbcc
+
 tower_admin_user: test
 tower_admin_password: changeme
-tower_task_image: ansible/awx_task:9.0.1
-tower_web_image: ansible/awx_web:9.0.1
+
+# Use these image versions for Ansible Tower.
+tower_task_image: registry.access.redhat.com/ansible-tower-35/ansible-tower:3.5.3
+tower_web_image: registry.access.redhat.com/ansible-tower-35/ansible-tower:3.5.3
+
+# Use these image versions for Ansible AWX.
+# tower_task_image: ansible/awx_task:9.0.1
+# tower_web_image: ansible/awx_web:9.0.1
+
 tower_memcached_image: memcached:alpine
+
 tower_rabbitmq_image: rabbitmq:3
+
 tower_postgres_pass: awxpass
 tower_postgres_image: postgres:9.6
 tower_postgres_storage_request: 8Gi
diff --git a/roles/tower/templates/tower_config.yaml.j2 b/roles/tower/templates/tower_config.yaml.j2
index 6a012e10..650e2404 100644
--- a/roles/tower/templates/tower_config.yaml.j2
+++ b/roles/tower/templates/tower_config.yaml.j2
@@ -18,8 +18,6 @@ data:
     MEMCACHED_PORT='11211'
     RABBITMQ_HOST='{{ meta.name }}-rabbitmq.{{ meta.namespace }}.svc.cluster.local'
     RABBITMQ_PORT='5672'
-    AWX_ADMIN_USER={{ tower_admin_user }}
-    AWX_ADMIN_PASSWORD={{ tower_admin_password | quote }}
 
   settings: |
     import os