Logstash formatter on stdout for Django

I wanted seemingly a simple thing: logging using a logstash formatter with extra context on a standard output inside a django application. For some reason, this wasn't obvious at all, but the solution was quite easy in the end.

Here are the steps:

1. Install logstash_formatter
2. add following into django settings logging:

LOGGING = {  
    'version': 1,
    'disable_existing_loggers': False,
    'formatters': {
        'logstash': {
            'class': 'logstash_formatter.LogstashFormatterV1',
            'format': '{"extra": {"PROJECT_ID": "Gwiqie", "user": true }}',
        },
    },
    'handlers': {
        'console': {
            'level': 'INFO',
            'class': 'logging.StreamHandler',
            'formatter': 'logstash'
        },
    'loggers': {
        'django': {
            'handlers': ['console'],
            'level': 'INFO',
            'propagate': True,
        },
}

so quite easy in the end. I also used this approach to use logstash format only when LOGSTASH=True environment variable is set, so I still have nice and concise logging format during development. Hence I used this:

LOGGING = {  
    'version': 1,
    'disable_existing_loggers': False,
    'formatters': {
        'classic': {
            'format': '[%(asctime)s] [%(levelname)s] [DJANGO] %(module)s %(message)s'
        },
        'logstash': {
            'class': 'logstash_formatter.LogstashFormatterV1',
            'format': '{"extra": {"PROJECT_ID": "Gwiqie", "user": true }}',
        },
    },
    'handlers': {
        'console': {
            'level': 'INFO',
            'class': 'logging.StreamHandler',
            'formatter': 'logstash' if os.environ.get('LOGSTASH', 'False') == 'True' else 'classic'
        },
    },
    'loggers': {
        'django': {
            'handlers': ['console'],
            'level': 'INFO',
            'propagate': True,
        },
    },
}