added 'tower_image_pull_secret'

roles/installer/defaults/main.yml

@@ -57,6 +57,7 @@ tower_extra_volumes: ''
 
 tower_image: quay.io/ansible/awx:execution-environments
 tower_image_pull_policy: IfNotPresent
+tower_image_pull_secret: ''
 default_ee: quay.io/ansible/awx-ee
 
 tower_create_preload_data: true

roles/installer/templates/tower_deployment.yaml.j2

@@ -18,6 +18,10 @@ spec:
         app: '{{ deployment_type }}'
     spec:
       serviceAccountName: '{{ meta.name }}'
+{% if tower_image_pull_secret %}
+      imagePullSecrets:
+        - name: {{ tower_image_pull_secret }}
+{% endif %}
       containers:
         - image: '{{ tower_redis_image }}'
           name: redis