Disable Redis for Staging added statsd for post methods

- Disable Redis as there is a current connection limit of 256 which
 could slow down the request if they are all used
 - Added statd to methods in the post to help spot any bottlenecks

app/v2/notifications/create_response.py

@@ -1,3 +1,5 @@
+from app.statsd_decorators import statsd
+
 
 def create_post_sms_response_from_notification(notification, content, from_number, url_root, scheduled_for):
     noti = __create_notification_response(notification, url_root, scheduled_for)
@@ -8,6 +10,7 @@ def create_post_sms_response_from_notification(notification, content, from_numbe
     return noti
 
 
+@statsd(namespace="performance-testing")
 def create_post_email_response_from_notification(notification, content, subject, email_from, url_root, scheduled_for):
     noti = __create_notification_response(notification, url_root, scheduled_for)
     noti['content'] = {

app/v2/notifications/post_notifications.py

@@ -34,6 +34,7 @@ from app.notifications.validators import (
     check_service_sms_sender_id
 )
 from app.schema_validation import validate
+from app.statsd_decorators import statsd
 from app.v2.errors import BadRequestError
 from app.v2.notifications import v2_notification_blueprint
 from app.v2.notifications.notification_schemas import (
@@ -118,6 +119,7 @@ def post_notification(notification_type):
     return jsonify(resp), 201
 
 
+@statsd(namespace="performance-testing")
 def process_sms_or_email_notification(*, form, notification_type, api_key, template, service, reply_to_text=None):
     form_send_to = form['email_address'] if notification_type == EMAIL_TYPE else form['phone_number']
 
@@ -160,6 +162,7 @@ def process_sms_or_email_notification(*, form, notification_type, api_key, templ
     return notification
 
 
+@statsd(namespace="performance-testing")
 def process_letter_notification(*, letter_data, api_key, template):
     if api_key.key_type == KEY_TYPE_TEAM:
         raise BadRequestError(message='Cannot send letters with a team api key', status_code=403)
@@ -187,6 +190,7 @@ def process_letter_notification(*, letter_data, api_key, template):
     return notification
 
 
+@statsd(namespace="performance-testing")
 def get_reply_to_text(notification_type, form):
     reply_to = None
     if notification_type == EMAIL_TYPE: