app.py

@@ -14,10 +14,8 @@ from messages import LOCALES
 import sqlite3
 import requests
 import sys
-from sanic.log import logger, logging
-
-if METRICS:
-	from sanic_prometheus import monitor
+from sanic.log import logger, logging, access_logger
+from metrics import *
 
 app = Sanic(__name__)
 app.static("/res", "res/")
@@ -39,8 +37,7 @@ app.blueprint([room_bp, karaoke_bp, propic_bp, export_bp, stats_bp, api_bp, carp
 				
 @app.exception(exceptions.SanicException)
 async def clear_session(request, exception):
-	print(exception)
-	print(request)
+	logger.warning(f"{request} -> {exception}")
 	tpl = app.ctx.tpl.get_template('error.html')
 	r = html(tpl.render(exception=exception))
 	
@@ -53,6 +50,7 @@ async def clear_session(request, exception):
 async def main_start(*_):
 	logger.info(f"[{app.name}] >>>>>> main_start <<<<<<")
 	logger.setLevel(LOG_LEVEL)
+	access_logger.addFilter(MetricsFilter())
 
 	app.config.REQUEST_MAX_SIZE = PROPIC_MAX_FILE_SIZE * 3
 	
@@ -93,6 +91,7 @@ async def redirect_explore(request, code, secret, order: Order, secret2=None):
 
 	if not order:
 		async with httpx.AsyncClient() as client:
+			incPretixRead()
 			res = await client.get(join(base_url_event, f"orders/{code}/"), headers=headers)
 			
 			if res.status_code != 200:
@@ -157,6 +156,7 @@ async def download_ticket(request, order: Order):
 		raise exceptions.Forbidden("You are not allowed to download this ticket.")
 		
 	async with httpx.AsyncClient() as client:
+		incPretixRead()
 		res = await client.get(join(base_url_event, f"orders/{order.code}/download/pdf/"), headers=headers)
 	
 	if res.status_code == 409:
@@ -191,6 +191,16 @@ async def logout(request):
 
 	raise exceptions.Forbidden("You have been logged out.")
 
+@app.get(METRICS_PATH)
+async def metrics(request):
+	return text(getMetricsText() + "\n" + getRoomCountersText(request))
+
+@app.on_request
+async def countReqs(request : Request):
+	global METRICS_REQ_NO
+	if(request.path != METRICS_PATH):
+		incReqNo()
+
 if __name__ == "__main__":
 	# Wait for pretix in server reboot
 	# Using a docker configuration, pretix may be unable to talk with postgres if postgres' service started before it. 
@@ -201,10 +211,12 @@ if __name__ == "__main__":
 	while True:
 		print("Trying connecting to pretix...", file=sys.stderr)
 		try:
+			incPretixRead()
 			res = requests.get(base_url_event, headers=headers)
 			res = res.json()
 			if(res['slug'] == EVENT_NAME):
 				print("Healtchecking...", file=sys.stderr)
+				incPretixRead()
 				res = requests.get(join(domain, "healthcheck"), headers=headers)
 				if(res.status_code == 200):
 					break
@@ -213,12 +225,4 @@ if __name__ == "__main__":
 		sleep(5)
 	print("Connected to pretix!", file=sys.stderr)
 
-	if(METRICS):
-		if(METRICS_USE_ANOTHER_SOCKET):
-			print(f"Startin metrics server on {METRICS_IP}:{METRICS_PORT} on path '{METRICS_PATH}'")
-			monitor(app, metrics_path=METRICS_PATH).start_server(addr=METRICS_IP, port=METRICS_PORT)
-		else:
-			print(f"Startin metrics server on path '{METRICS_PATH}'")
-			monitor(app, metrics_path=METRICS_PATH).expose_endpoint()
-
 	app.run(host="127.0.0.1", port=8188, dev=DEV_MODE, access_log=ACCESS_LOG)

checkin.py

@@ -11,6 +11,7 @@ from hashlib import sha224
 from time import time
 from urllib.parse import unquote
 import json
+from metrics import *
 
 bp = Blueprint("checkin", url_prefix="/checkin")
 
@@ -64,6 +65,7 @@ async def do_checkin(request):
 	
 	if not order.checked_in:
 		async with httpx.AsyncClient() as client:
+			incPretixWrite()
 			res = await client.post(base_url_event.replace(f'events/{EVENT_NAME}/', 'checkinrpc/redeem/'), json={'secret': order.barcode, 'source_type': 'barcode', 'type': 'entry', 'lists': [3,]}, headers=headers)
 	
 	tpl = request.app.ctx.tpl.get_template('checkin_3.html')

config.example.py

@@ -40,11 +40,7 @@ DEV_MODE = True
 ACCESS_LOG = True
 EXTRA_PRINTS = True
 
-METRICS = True
-METRICS_USE_ANOTHER_SOCKET = True
-METRICS_IP = "172.17.0.1"
-METRICS_PORT = "1211"
-METRICS_PATH = "/metrics"
+METRICS_PATH = "/welcome/metrics"
 
 # Additional configured locales.
 # If an order has a country that's not listed here,
@@ -138,5 +134,5 @@ ROOM_CAPACITY_MAP = {
     'bed_in_room_overflow1_2': 2,
 }
 
-# Autofilled
+# Autofilled. Maps roomTypeId -> roomName
 ROOM_TYPE_NAMES = { }

ext.py

@@ -8,6 +8,7 @@ from os.path import join
 import json
 from sanic.log import logger
 from time import time
+from metrics import *
 import asyncio
 
 @dataclass
@@ -159,6 +160,7 @@ class Order:
 				localHeaders = dict(headers)
 				localHeaders['Content-Type'] = mimeType
 				localHeaders['Content-Disposition'] = f'attachment; filename="{fileName}"'
+				incPretixWrite()
 				res = await client.post(join(base_url, 'upload'), headers=localHeaders, content=data)
 				res = res.json()
 				await self.edit_answer(name, res['id'])
@@ -184,6 +186,7 @@ class Order:
 		if (not found) and (new_answer is not None):
 			
 			async with httpx.AsyncClient() as client:
+				incPretixRead()
 				res = await client.get(join(base_url_event, 'questions/'), headers=headers)
 				res = res.json()
 			for r in res['results']:
@@ -211,6 +214,7 @@ class Order:
 				#	del self.answers[i]['options']
 				#	del self.answers[i]['option_identifiers']
 			
+			incPretixWrite()
 			res = await client.patch(join(base_url_event, f'orderpositions/{self.position_id}/'), headers=headers, json={'answers': self.answers})
 			
 			if res.status_code != 200:
@@ -244,6 +248,7 @@ class Quotas:
 
 async def get_quotas(request: Request=None):
 	async with httpx.AsyncClient() as client:
+		incPretixRead()
 		res = await client.get(join(base_url_event, 'quotas/?order=id&with_availability=true'), headers=headers)
 		res = res.json()
 		
@@ -302,6 +307,7 @@ class OrderManager:
 			async with httpx.AsyncClient() as client:
 				while 1:
 					p += 1
+					incPretixRead()
 					res = await client.get(join(base_url_event, f"orders/?page={p}"), headers=headers)
 					if res.status_code == 404: break
 					# Parse order data
@@ -344,6 +350,7 @@ class OrderManager:
 			if DEV_MODE and EXTRA_PRINTS: logger.debug(f'Fetching {code} with secret {secret}')
 
 			async with httpx.AsyncClient() as client:
+				incPretixRead()
 				res = await client.get(join(base_url_event, f"orders/{code}/"), headers=headers)
 				if res.status_code != 200:
 					if request:

metrics.py

@@ -0,0 +1,58 @@
+from sanic.log import logger, logging
+from logging import LogRecord
+from config import *
+
+METRICS_REQ_NO = 0
+METRICS_PRETIX_READ = 0
+METRICS_PRETIX_WRITE = 0
+
+def incPretixRead():
+	global METRICS_PRETIX_READ
+	METRICS_PRETIX_READ += 1
+
+def incPretixWrite():
+	global METRICS_PRETIX_WRITE
+	METRICS_PRETIX_WRITE += 1
+
+def incReqNo():
+	global METRICS_REQ_NO
+	METRICS_REQ_NO += 1
+
+def getMetricsText():
+	global METRICS_REQ_NO
+	global METRICS_PRETIX_READ
+	global METRICS_PRETIX_WRITE
+	out = []
+
+	out.append(f'sanic_request_count{{}} {METRICS_REQ_NO}')
+	out.append(f'webint_pretix_read_count{{}} {METRICS_PRETIX_READ}')
+	out.append(f'webint_pretix_write_count{{}} {METRICS_PRETIX_WRITE}')
+
+	return "\n".join(out)
+
+def getRoomCountersText(request):
+	out = []
+	try :
+		daily = 0
+		counters = {}
+		for id in ROOM_TYPE_NAMES.keys():
+			counters[id] = 0
+
+		for order in request.app.ctx.om.cache.values():
+			if(order.daily):
+				daily += 1
+			else:
+				counters[order.bed_in_room] += 1
+
+		for id, count in counters.items():
+			out.append(f'webint_order_room_counter{{label="{ROOM_TYPE_NAMES[id]}"}} {count}')
+		out.append(f'webint_order_room_counter{{label="Daily"}} {daily}')
+
+	except Exception as e:
+		print(e)
+		logger.warning("Error in loading metrics rooms")
+	return "\n".join(out)
+
+class MetricsFilter(logging.Filter):
+	def filter(self, record : LogRecord):
+		return not (record.request.endswith("/manage/metrics") and record.status == 200)

requirements.txt

@@ -4,5 +4,4 @@ httpx
 Pillow
 aztec_code_generator
 Jinja2
-Requests
-sanic_prometheus 
+Requests

room.py

@@ -344,6 +344,7 @@ async def confirm_room(request, order: Order, quotas: Quotas):
 	# }
 	# 
 	# async with httpx.AsyncClient() as client:
+	#	incPretixRead()
 	# 	res = await client.post(join(base_url_event, "orderpositions/"), headers=headers, json=thing)
 	# 	
 	# 	if res.status_code != 201:

utils.py

@@ -4,7 +4,9 @@ from config import *
 import httpx
 from messages import ROOM_ERROR_TYPES
 from email_util import send_unconfirm_message
+from sanic.response import text, html, redirect, raw
 from sanic.log import logger
+from metrics import *
 
 METADATA_TAG = "meta_data"
 VARIATIONS_TAG = "variations"
@@ -33,6 +35,7 @@ async def load_questions():
 		p = 0
 		while 1:
 			p += 1
+			incPretixRead()
 			res = await client.get(join(base_url_event, f"questions/?page={p}"), headers=headers)
 
 			if res.status_code == 404: break
@@ -50,6 +53,7 @@ async def load_items():
 		p = 0
 		while 1:
 			p += 1
+			incPretixRead()
 			res = await client.get(join(base_url_event, f"items/?page={p}"), headers=headers)
 
 			if res.status_code == 404: break
@@ -253,4 +257,4 @@ async def check_room(request, order, om=None):
 		if order.room_confirmed:
 			allOk = False
 	order.set_room_errors(room_errors)
-	return (order, allOk, room_members)
+	return (order, allOk, room_members)