Incorporate credstash in production wsgi scripts.

requirements.txt

@@ -8,6 +8,7 @@ SQLAlchemy-Utils==0.30.5
 Flask-WTF==0.11
 Flask-Login==0.2.11
 Flask-Bcrypt==0.6.2
+credstash==1.8.0
 
 git+https://github.com/alphagov/notify-api-client.git@0.1.4#egg=notify-api-client==0.1.4
 

wsgi.py

@@ -1,7 +1,14 @@
 from app import create_app
 import os
+from credstash import getAllSecrets
 
-application = create_app(os.getenv('NOTIFICATIONS_ADMIN_ENVIRONMENT') or 'development')
+secrets = getAllSecrets(region="eu-west-1")
+
+application = create_app(os.getenv('NOTIFICATIONS_ADMIN_ENVIRONMENT') or 'live')
+
+for key in application.config.keys():
+        if key in secrets:
+                application.config[key] = secrets[key]
 
 if __name__ == "__main__":
         application.run()