Fix service_variant label used for logging

We use an rsyslog DynaFile template to look for the service_variant label in log messages and dump them to /edx/var/log/<service_variant>/edx.log. Since the service_variant used here was the old 'ecommerce_worker', logs were being dumped to the wrong location on disk. This is half of a larger problem with ecomworker logging, the other half being forwarding the correct logs Splunk. ECOM-3496.

ecommerce_worker/configuration/logger.py

@@ -11,7 +11,7 @@ def get_logger_config(log_dir='/var/tmp',
                       dev_env=False,
                       debug=False,
                       local_loglevel='INFO',
-                      service_variant='ecommerce_worker'):
+                      service_variant='ecomworker'):
 
     """
     Returns a dictionary containing logging configuration.