feat(configs): allow json log format for gunicorn

configs/gunicorn_config.py

@@ -13,6 +13,7 @@ import traceback
 import random
 import socket
 import dataclasses
+import json
 from gunicorn.glogging import Logger
 
 
@@ -37,17 +38,41 @@ accesslog = '-'
 worker_tmp_dir = None
 tmp_upload_dir = None
 
-# use re-use port logic
-#reuse_port = True
+# use re-use port logic to let linux internals load-balance the requests better.
+reuse_port = True
 
 # Custom log format
 #access_log_format = (
 #    '%(t)s %(p)s INFO  [GNCRN] %(h)-15s rqt:%(L)s %(s)s %(b)-6s "%(m)s:%(U)s %(q)s" usr:%(u)s "%(f)s" "%(a)s"')
 
 # loki format for easier parsing in grafana
-access_log_format = (
+loki_access_log_format = (
     'time="%(t)s" pid=%(p)s level="INFO" type="[GNCRN]" ip="%(h)-15s" rqt="%(L)s" response_code="%(s)s" response_bytes="%(b)-6s" uri="%(m)s:%(U)s %(q)s" user=":%(u)s" user_agent="%(a)s"')
 
+# JSON format
+json_access_log_format = json.dumps({
+    'time': r'%(t)s',
+    'pid': r'%(p)s',
+    'level': 'INFO',
+    'ip': r'%(h)s',
+    'request_time': r'%(L)s',
+    'remote_address': r'%(h)s',
+    'user_name': r'%(u)s',
+    'status': r'%(s)s',
+    'method': r'%(m)s',
+    'url_path': r'%(U)s',
+    'query_string': r'%(q)s',
+    'protocol': r'%(H)s',
+    'response_length': r'%(B)s',
+    'referer': r'%(f)s',
+    'user_agent': r'%(a)s',
+
+})
+
+access_log_format = loki_access_log_format
+if os.environ.get('RC_LOGGING_FORMATTER') == 'json':
+    access_log_format = json_access_log_format
+
 # self adjust workers based on CPU count, to use maximum of CPU and not overquota the resources
 # workers = get_workers()