After install you must init graphite.db.

Normally:

   django-admin makemigrations --pythonpath='/var/lib/graphite/webapp' --settings=graphite.settings
   django-admin migrate auth --pythonpath='/var/lib/graphite/webapp' --settings=graphite.settings
   django-admin migrate --run-syncdb --pythonpath='/var/lib/graphite/webapp' --settings=graphite.settings
   django-admin createsuperuser --pythonpath='/var/lib/graphite/webapp' --settings=graphite.settings


But the first three things are done at package installation.



You only can do if you want. It's not needed for icingaweb2-module-graphite:

   django-admin createsuperuser --pythonpath='/var/lib/graphite/webapp' --settings=graphite.settings



You must start carbon-cache anyway:

   systemctl enable carbon-cache
   systemctl start carbon-cache