参考：
Prometheus Python Client https://github.com/prometheus/client_python
https://www.zybuluo.com/rickyChen/note/831219

INSTALL

pip install prometheus_client

DEMO

from prometheus_client import start_http_server, Summary
import random
import time

# Create a metric to track time spent and requests made.
REQUEST_TIME = Summary('request_processing_seconds', 'Time spent processing request')

# Decorate function with metric.
@REQUEST_TIME.time()
def process_request(t):
    """A dummy function that takes some time."""
    time.sleep(t)

if __name__ == '__main__':
    # Start up the server to expose the metrics.
    start_http_server(8000)
    # Generate some requests.
    while True:
        process_request(random.random())

运行程序，然后访问 http://localhost:8000/ 可以查看 metrics.

image.png

CONFIG Prometheus

在配置文件添加：

  - job_name: python_test
    static_configs:
      - targets: ['localhost:8000']

可以看到已经被监控起来了

image.png

可以查询看一下结果：

image.png