使用python代码导出Prometheus度量

Question

有人告诉我Kubernetes集群中是否有收集普罗米修斯度量的python代码吗？我有3个节点与Kubernetes集群连接，Prometheus已经安装，所有节点都使用Kubernetes集群连接，我只想知道如何使用python代码导出这些度量？非常感谢

Answer 1

您可以跟随这个guide和这个guide。基本上，您将使用prometheus python client library导出度量

import prometheus_client as prom
import random
import time

req_summary = prom.Summary('python_my_req_example', 'Time spent processing a request')


@req_summary.time()
def process_request(t):
   time.sleep(t)


if __name__ == '__main__':

   counter = prom.Counter('python_my_counter', 'This is my counter')
   gauge = prom.Gauge('python_my_gauge', 'This is my gauge')
   histogram = prom.Histogram('python_my_histogram', 'This is my histogram')
   summary = prom.Summary('python_my_summary', 'This is my summary')
   prom.start_http_server(8080)

   while True:
       counter.inc(random.random())
       gauge.set(random.random() * 15 - 5)
       histogram.observe(random.random() * 10)
       summary.observe(random.random() * 10)
       process_request(random.random() * 5)

       time.sleep(1)