Flask

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• database_migration_script | string

  Specifies the relative path from /flask/app that points to a shell script executing database migrations for the Flask application. This script is designed to run once for each Flask container unit. However, users must ensure: 1. The script can be executed multiple times without issues; 2. Concurrent migrations from different units are safe. In case of migration failure, the charm will re-attempt during the update-status event. Successful database migration in a container ensures that any configuration updates won't trigger another migration unless the Flask container is upgraded or restarted.

• flask_application_root | string

  Path in which the application / web server is mounted. This configuration will set the FLASK_APPLICATION_ROOT environment variable. Run `app.config.from_prefixed_env()` in your Flask application in order to receive this configuration.

• flask_debug | boolean

  Whether Flask debug mode is enabled.

• flask_env | string

  What environment the Flask app is running in, by default it's 'production'.

• flask_permanent_session_lifetime | int

  Time in seconds for the cookie to expire in the Flask application permanent sessions. This configuration will set the FLASK_PERMANENT_SESSION_LIFETIME environment variable. Run `app.config.from_prefixed_env()` in your Flask application in order to receive this configuration.

• flask_preferred_url_scheme | string

  Default: HTTPS

  Scheme for generating external URLs when not in a request context in the Flask application. By default, it's "HTTPS". This configuration will set the FLASK_PREFERRED_URL_SCHEME environment variable. Run `app.config.from_prefixed_env()` in your Flask application in order to receive this configuration.

• flask_secret_key | string

  The secret key used for securely signing the session cookie and for any other security related needs by your Flask application. This configuration will set the FLASK_SECRET_KEY environment variable. Run `app.config.from_prefixed_env()` in your Flask application in order to receive this configuration.

• flask_session_cookie_secure | boolean

  Set the secure attribute in the Flask application cookies. This configuration will set the FLASK_SESSION_COOKIE_SECURE environment variable. Run `app.config.from_prefixed_env()` in your Flask application in order to receive this configuration.

• webserver_keepalive | int

  Time in seconds for webserver to wait for requests on a Keep-Alive connection.

• webserver_threads | int

  Run each webserver worker with the specified number of threads.

• webserver_timeout | int

  Time in seconds to kill and restart silent webserver workers.

• webserver_workers | int

  The number of webserver worker processes for handling requests.

• webserver_wsgi_path | string

  Default: app:app

  The WSGI application path. By default, it's set to "app:app".