Gunicorn - No access logs

Question

currently i am running my sanic(microframework) webservice with gunicorn as a daemon and i would like to save all logs in files(access and error)

My config:

reload = True
daemon = True
bind = '0.0.0.0:6666'
worker_class = 'sanic.worker.GunicornWorker'
loglevel = 'debug'
accesslog = 'access.log'
access_log_format = '%(h)s %(l)s %(u)s %(t)s "%(r)s" %(s)s %(b)s "%(f)s" "%(a)s"'
errorlog = 'error.log'

Next i start the webservice:

gunicorn --config config.py app:app

Sooo.. my errorlog works, but i get absolutely no accesslogs..

There is no hint in the documentation about this issue, could anybody help me?

Thanks and Greetings!

Answer 1

could you try :

gunicorn --config config.py app:app --access-logfile '-'

And see if anything is logged on stdout(console output)?

Answer 2

I think you could simply from the sanic framework directly.

check the link

How to change the default sanic log directory to a custom directory?

Answer 3

You should pass a log config to the Sanic App and set the a file instead of sys.stdout as stream for the access log handler.

app = Sanic('test', log_config=CUSTOM_LOGIN_CONFIG)

You can copy the default config from log.py in the sanic folder

accesslog_file = open('accesslog_file.log','w')


CUSTOM_LOGIN_CONFIG = dict(
    version=1,
    disable_existing_loggers=False,

    loggers={
        "root": {
            "level": "INFO",
            "handlers": ["console"]
        },
        "sanic.error": {
            "level": "INFO",
            "handlers": ["error_console"],
            "propagate": True,
            "qualname": "sanic.error"
        },

        "sanic.access": {
            "level": "INFO",
            "handlers": ["access_console"],
            "propagate": True,
            "qualname": "sanic.access"
        }
    },
    handlers={
        "console": {
            "class": "logging.StreamHandler",
            "formatter": "generic",
            "stream": sys.stdout
        },
        "error_console": {
            "class": "logging.StreamHandler",
            "formatter": "generic",
            "stream": sys.stdout
        },
        "access_console": {
            "class": "logging.StreamHandler",
            "formatter": "access",
            "stream": accesslog_file
        },
    },
    formatters={
        "generic": {
            "format": "%(asctime)s [%(process)d] [%(levelname)s] %(message)s",
            "datefmt": "[%Y-%m-%d %H:%M:%S %z]",
            "class": "logging.Formatter"
        },
        "access": {
            "format": "%(asctime)s - (%(name)s)[%(levelname)s][%(host)s]: " +
                      "%(request)s %(message)s %(status)d %(byte)d",
            "datefmt": "[%Y-%m-%d %H:%M:%S %z]",
            "class": "logging.Formatter"
        },
    }
)

This is gonna work even if you run the the app with gunicorn.

Answer 4

use supervisord to start the gunicorn service with logging parameters.

[program:sanic]
directory=/home/ubuntu/api
command=/home/ubuntu/api/venv/bin/gunicorn api:app --bind 0.0.0.0:8000 --worker-class sanic.worker.GunicornWorker -w 2
stderr_logfile = log/api_stderr.log
stdout_logfile = log/api_stdout.log

This works perfectly for me so I can just tail -f log/api_stderr.log

Answer 5

If You are using logging.config.fileConfig('someFile.conf') , make sure that You use disable_existing_loggers=False argument, so it will be:

logging.config.fileConfig('someFile.conf', disable_existing_loggers=False)

Documentation here: https://docs.python.org/3.7/library/logging.config.html#logging.config.fileConfig

Otherwise access logs are suppressed.

Leaving existing loggers alive might lead to appearing of other logs, for example, from requests or urllib3 library. Do not worry, just disable at the next line, if You do not need them:

logging.getLogger("urllib3").setLevel(logging.WARNING)