bundles/nginx: add anonymous timing logging for http requests

bundles/nginx/metadata.py

@@ -181,3 +181,29 @@ def firewall(metadata):
             },
         },
     }
+
+
+@metadata_reactor.provides(
+    'telegraf/input_plugins/tail',
+)
+def telegraf_anon_timing(metadata):
+    result = {}
+
+    for vhost in metadata.get('nginx/vhosts', {}):
+        result[f'nginx-{vhost}'] = {
+            'files': [f'/var/log/nginx-timing/{vhost}.log'],
+            'from_beginning': False,
+            'grok_patterns': ['%{LOGPATTERN}'],
+            'grok_custom_patterns': 'LOGPATTERN \[%{HTTPDATE:ts:ts-httpd}\] %{NUMBER:request_time:float} (?:%{NUMBER:upstream_response_time:float}|-) "%{WORD:verb:tag} %{NOTSPACE:request} HTTP/%{NUMBER:http_version:float}" %{NUMBER:resp_code:tag}',
+            'data_format': 'grok',
+            'name_override': 'nginx_timing',
+        }
+
+    return {
+        'telegraf': {
+            'input_plugins': {
+                'tail': result,
+            },
+        },
+    }
+