(WIP) add prometheus metrics

gnocpush/gateway.py

@@ -7,12 +7,14 @@
 
 from flask import Flask, request
 from gnocpush import Pusher
+from prometheus_flask_exporter import PrometheusMetrics
 
 # from flask_httpauth import HTTPBasicAuth
 # from werkzeug.security import generate_password_hash, check_password_hash
 
 app = Flask(__name__)
 app.config['MAX_CONTENT_LENGTH'] = 4 * 1024 * 1024  # 4 MB
+metrics = PrometheusMetrics(app)
 # alertmanager webhook_config does not support http digest auth
 # auth = HTTPBasicAuth()
 
@@ -42,6 +44,7 @@ def push_endpoint():
 
 
 @app.route('/healthz', methods=['GET'])
+@metrics.do_not_track()
 def healthz():
     return {'status': 'ok'}
 

pyproject.toml

@@ -2,12 +2,13 @@
 name = "gnocpush"
 version = "0.1.0"
 dependencies = [
+  "flake8-pyproject",
+  "flask",
+  "flask-httpauth",
   "globalnoc_alertmon_agent",
+  "prometheus-flask-exporter==0.23.0",
   "python-dateutil",
   "requests",
-  "flask",
-  "flask-httpauth",
-  "flake8-pyproject",
 ]
 
 [build-system]