Adds statsd to the application

- statsd client from utils
- adds to logger an get same method based reporting as we do for the API.

config.py

@@ -9,6 +9,8 @@ class Config(object):
     DANGEROUS_SALT = os.environ['DANGEROUS_SALT']
     DESKPRO_API_HOST = os.environ['DESKPRO_API_HOST']
     DESKPRO_API_KEY = os.environ['DESKPRO_API_KEY']
+    # Hosted graphite statsd prefix
+    STATSD_PREFIX = os.getenv('STATSD_PREFIX')
 
     DESKPRO_DEPT_ID = 5
     DESKPRO_ASSIGNED_AGENT_TEAM_ID = 5
@@ -43,6 +45,11 @@ class Config(object):
     ACTIVITY_STATS_LIMIT_DAYS = 7
     TEST_MESSAGE_FILENAME = 'Test message'
 
+    STATSD_ENABLED = False
+    STATSD_HOST = "statsd.hostedgraphite.com"
+    STATSD_PORT = 8125
+    NOTIFY_ENVIRONMENT = 'development'
+
     EMAIL_DOMAIN_REGEXES = [
         r"gov\.uk",
         r"mod\.uk",
@@ -71,32 +78,41 @@ class Development(Config):
     SESSION_COOKIE_SECURE = False
     WTF_CSRF_ENABLED = False
     SESSION_PROTECTION = None
+    STATSD_ENABLED = True
     CSV_UPLOAD_BUCKET_NAME = 'development-notifications-csv-upload'
 
 
 class Test(Development):
     DEBUG = True
+    STATSD_ENABLED = True
     CSV_UPLOAD_BUCKET_NAME = 'test-notifications-csv-upload'
+    NOTIFY_ENVIRONMENT = 'test'
 
 
 class Preview(Config):
     HTTP_PROTOCOL = 'https'
     HEADER_COLOUR = '#F499BE'  # $baby-pink
+    STATSD_ENABLED = True
     CSV_UPLOAD_BUCKET_NAME = 'preview-notifications-csv-upload'
+    NOTIFY_ENVIRONMENT = 'preview'
 
 
 class Staging(Config):
     SHOW_STYLEGUIDE = False
     HTTP_PROTOCOL = 'https'
     HEADER_COLOUR = '#6F72AF'  # $mauve
+    STATSD_ENABLED = True
     CSV_UPLOAD_BUCKET_NAME = 'staging-notify-csv-upload'
+    NOTIFY_ENVIRONMENT = 'staging'
 
 
 class Live(Config):
     SHOW_STYLEGUIDE = False
     HEADER_COLOUR = '#005EA5'  # $govuk-blue
     HTTP_PROTOCOL = 'https'
+    STATSD_ENABLED = True
     CSV_UPLOAD_BUCKET_NAME = 'live-notifications-csv-upload'
+    NOTIFY_ENVIRONMENT = 'live'
 
 
 configs = {