Frequently Asked Questions ========================== Common Problems --------------- In my startup logs I see *'Aborting... Lemur cannot locate db encryption key, is LEMUR_ENCRYPTION_KEYS set?'* You likely have not correctly configured **LEMUR_ENCRYPTION_KEYS**. See :doc:`administration/index` for more information. I am seeing Lemur's javascript load in my browser but not the CSS. Ensure that you are placing *include mime.types;* to your Nginx static file location. See :doc:`production/index` for example configurations. Running 'lemur db upgrade' seems stuck. Most likely, the upgrade is stuck because an existing query on the database is holding onto a lock that the migration needs. To resolve, login to your lemur database and run: SELECT * FROM pg_locks l INNER JOIN pg_stat_activity s ON (l.pid = s.pid) WHERE waiting AND NOT granted; This will give you a list of queries that are currently waiting to be executed. From there attempt to idenity the PID of the query blocking the migration. Once found execute: select pg_terminate_backend(<blocking-pid>); See `<http://stackoverflow.com/questions/22896496/alembic-migration-stuck-with-postgresql>`_ for more. How do I -------- ... script the Lemur installation to bootstrap things like roles and users? Lemur is a simple Flask (Python) application that runs using a utility runner. A script that creates a project and default user might look something like this: .. code-block:: python # Bootstrap the Flask environment from flask import current_app from lemur.users.service import create as create_user from lemur.roles.service import create as create_role from lemur.accounts.service import create as create_account role = create_role('aRole', 'this is a new role') create_user('admin', 'password', 'lemur@nobody', True, [role]