Merge branch 'notifications_work' into devel

* notifications_work: (23 commits)
  Updates to notification unit tests after @wwitzel3's feedback
  Fix some notifications issues and write some tests
  Add notification system documentation
  Clean up flake8 related issues
  Fixing up some unicode issues
  Implement tower ui view url on models
  Sanity check and force proper types in admin check
  Proper type for in check
  Adding migration and base notification type
  Add a periodic administrative notification
  Refactor message generator
  Support notification password field encryption
  Notification configuration type checking
  Refactor NotificationTemplate to Notifier
  Implement irc notification backend
  Add webhook notification backend
  Pagerduty and Hipchat backends plus some cleanup
  Notification serializers, views, and tasks
  Implement notification serializer and validations
  Notification endpoints and url expositions
  ...

awx/settings/defaults.py

@@ -342,6 +342,10 @@ CELERYBEAT_SCHEDULE = {
         'task': 'awx.main.tasks.tower_periodic_scheduler',
         'schedule': timedelta(seconds=30)
     },
+    'admin_checks': {
+        'task': 'awx.main.tasks.run_administrative_checks',
+        'schedule': timedelta(days=30)
+    },
 }
 
 # Social Auth configuration.
@@ -677,6 +681,10 @@ FACT_CACHE_PORT = 6564
 
 ORG_ADMINS_CAN_SEE_ALL_USERS = True
 
+TOWER_ADMIN_ALERTS = True
+
+TOWER_URL_BASE = "https://towerhost"
+
 TOWER_SETTINGS_MANIFEST = {
     "SCHEDULE_MAX_JOBS": {
         "name": "Maximum Scheduled Jobs",
@@ -804,6 +812,20 @@ TOWER_SETTINGS_MANIFEST = {
         "type": "bool",
         "category": "system",
     },
+    "TOWER_ADMIN_ALERTS": {
+        "name": "Enable Tower Administrator Alerts",
+        "description": "Allow Tower to email Admin users for system events that may require attention",
+        "default": TOWER_ADMIN_ALERTS,
+        "type": "bool",
+        "category": "system",
+    },
+    "TOWER_URL_BASE": {
+        "name": "Base URL of the Tower host",
+        "description": "This is used by services like Notifications to render a valid url to the Tower host",
+        "default": TOWER_URL_BASE,
+        "type": "string",
+        "category": "system",
+    },
     "LICENSE": {
         "name": "Tower License",
         "description": "Controls what features and functionality is enabled in Tower.",