Don't connect to Elasticsearch on startup, since it may not be needed for all…

Don't connect to Elasticsearch on startup, since it may not be needed for all tasks (like static assets)

course_discovery/apps/courses/apps.py

@@ -14,7 +14,7 @@ class CoursesConfig(AppConfig):
     verbose_name = 'Courses'
 
     def ready(self):
-        if settings.ELASTICSEARCH.get('connect_on_startup', True):
+        if settings.ELASTICSEARCH.get('connect_on_startup', False):
             host = settings.ELASTICSEARCH['host']
             index = settings.ELASTICSEARCH['index']
 

course_discovery/settings/base.py

@@ -251,7 +251,6 @@ SWAGGER_SETTINGS = {
 ELASTICSEARCH = {
     'host': '',
     'index': 'course_discovery',
-    'connect_on_startup': True
 }
 
 # TODO Replace with None and document.