Gunicorn flask metrics exporting

[vinur1992]

I have flask application with views and main app. i need export metrics from these views. i tried everything as per example. but i only get # HELP by_endpoint_counter_total Request count by endpoints

TYPE by_endpoint_counter_total counter. not any values. I need set up number of hits on each route and export it into another port. please help. application running in gunicorn server

[rycus86]

Have you checked the https://github.com/rycus86/prometheus_flask_exporter/tree/master/examples/gunicorn example? That one runs Gunicorn on port 4000 but exposes the metrics on port 9200, which sounds like you're after?
If this doesn't help, could you post a (minimal) example of how you're setting things up so we can see what might be going wrong?

[vinur1992]

from flask import Blueprint,request,jsonify,Response,render_template,current_app
import os
from prometheus_flask_exporter.multiprocess import GunicornPrometheusMetrics

os.environ["PROMETHEUS_MULTIPROC_DIR"]="/home/u1437/Ospyn/Chosonbox/dedupe/CDS-AI"
print(os.environ)
metrics = GunicornPrometheusMetrics.for_app_factory()

app_bp=Blueprint('dedupe_blueprint', name,static_folder='static',template_folder='templates')

@app_bp.route('/test')
def index():
return 'Hello world'

@app_bp.route('/error')
def error():
raise Exception('Fail')
this is views.py inside folder blueprints
from flask import Flask,request,current_app
from Blueprints.views import app_bp
def main_app():
app = Flask(name)
#metrics.init_app(app)
app.register_blueprint(app_bp,url_prefix="/")
return app
app=main_app()
if name == 'main':
app.run(debug=False) this is main.py outside blueprint folder

this is gunicorn_config.py
from prometheus_flask_exporter.multiprocess import GunicornPrometheusMetrics

def when_ready(server):
GunicornPrometheusMetrics.start_http_server_when_ready(8080)
def child_exit(server, worker):
GunicornPrometheusMetrics.mark_process_dead_on_child_exit(worker.pid)
workers =2

i need to export each routes metrics via port 8080

[rycus86]

Can you try adding some debug statements (or breakpoint) in the when_ready to see if that's called as expected?
What do you get when you try accessing /metrics on port 8080? Do you get some metrics but not all?