Gunicorn logging

Centralized logging for gunicorn ussing ELK besed on (python-logstash-async)[https://github.com/eht16/python-logstash-async].

Environment vars

• LOGSTASH_HOST: Logstash host.
• LOGSTASH_PORT: Logstash port.
• LOGSTASH_DB_PATH: The path to the file containing queued events. Use None to use a in-memory cache.
• LOGSTASH_TRANSPORT: Callable or path to a compatible transport class.
• LOGSTASH_SSL_ENABLE: Callable or path to a compatible transport class.
• LOGSTASH_SSL_VERIFY: Should the server's SSL certificate be verified?
• LOGSTASH_KEYFILE: The path to client side SSL key file.
• LOGSTASH_CERTFILE: The path to client side SSL key file.
• LOGSTASH_CA_CERTS: The path to the file containing recognized CA certificates.
• LOGSTASH_ENABLE: Flag to enable log processing. (default is True, disabling might be handy for local testing, etc.)
• LOGSTASH_EVENT_TTL: Amount of time in seconds to wait before expiring log messages in the database. (Given in seconds. Default is None, and disables this feature)
• LOGSTASH_ENCODING:
• LOGSTASH_MESSAGE_TYPE:
• LOGSTASH_MESSAGE_SUBTYPE:
• LOGSTASH_EXTRA:

Using Django settings

Environment vars:

• WORKSPACE: Django base directory.
• DJANGO_SETTINGS_MODULE: Django settings module.