[jira] [Commented] (AIRFLOW-98) Using Flask extensions from a plugin

["Timo (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AIRFLOW-98?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15339691#comment-15339691 ] 

Timo commented on AIRFLOW-98:
-----------------------------

Since the app instance is not yet created when the plugins are imported, I tried to initialise the app in the plugin itself:

{code:none}
from airflow import configuration as conf
from airflow.www.app import cached_app
app = cached_app(conf)
{code}

This fails. Most likely it's causing a circular import, but I'm not sure about that. Traceback:

{code:none}
[2016-06-20 04:59:31,609] {plugins_manager.py:75} ERROR - cannot import name admin_views
Traceback (most recent call last):
  File "local/lib/python2.7/site-packages/airflow/plugins_manager.py", line 64, in <module>
    m = imp.load_source(namespace, filepath)
  File "/airflow/plugins/operators.py", line 14, in <module>
    app = cached_app(conf)
  File "/local/lib/python2.7/site-packages/airflow/www/app.py", line 133, in cached_app
    app = create_app(config)
  File "/local/lib/python2.7/site-packages/airflow/www/app.py", line 115, in create_app
    integrate_plugins()
  File "/local/lib/python2.7/site-packages/airflow/www/app.py", line 106, in integrate_plugins
    from airflow.plugins_manager import (
ImportError: cannot import name admin_views
{code}

> Using Flask extensions from a plugin
> ------------------------------------
>
>                 Key: AIRFLOW-98
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-98
>             Project: Apache Airflow
>          Issue Type: Wish
>            Reporter: Timo
>            Priority: Minor
>
> I am creating a plugin which should be able to use some Flask extensions. Is there any way to do this?
> Basically I need to import the airflow.www.app.app object in the plugin to initialise the extension with.



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