lemur/docs/faq.rst

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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
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:doc:`administration` 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.
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After installing Lemur I am unable to login
Ensure that you are trying to login with the credentials you entered during `lemur init`. These are separate
from the postgres database credentials.
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.
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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]