from aioprometheus import Counter, Service
if __name__ == "__main__":
loop = asyncio.get_event_loop()
svr = Service()
events_counter = Counter(
"events", "Number of events.", const_labels={"host": socket.gethostname()}
)
svr.register(events_counter)
loop.run_until_complete(svr.start(addr="127.0.0.1"))
print(f"Serving prometheus metrics on: {svr.metrics_url}")
async def updater(m: Counter):
# Periodically update the metric to simulate some progress
# happening in a real application.
while True:
m.inc({"kind": "timer_expiry"})
await asyncio.sleep(1.0)
try:
loop.run_until_complete(updater(events_counter))
except KeyboardInterrupt:
pass
finally:
loop.run_until_complete(svr.stop())
if __name__ == '__main__':
def on_timer_expiry(loop, events_collector):
''' Update the metric periodically '''
events_collector.inc({'kind': 'timer_expiry'})
loop.call_later(1.0, on_timer_expiry, loop, events_collector)
loop = asyncio.get_event_loop()
svr = Service(loop=loop)
events_collector = Counter(
"events", "Number of events.", {'host': socket.gethostname()})
svr.registry.register(events_collector)
loop.run_until_complete(svr.start())
print('serving prometheus metrics on: {}'.format(svr.url))
loop.call_later(1.0, on_timer_expiry, loop, events_collector)
try:
loop.run_forever()
except KeyboardInterrupt:
pass
finally:
loop.run_until_complete(svr.stop())
loop.close()