【无标题】prometheus 钉钉webhook，加签方式_docker安装prometheus-webhook-dingtalk指定钉钉的签名-优快云博客

该博客介绍了如何使用 Flask 搭建一个 Prometheus Alertmanager 的 DingTalk webhook 服务器，用于接收和处理 Prometheus 报警信息。通过解析接收到的数据，构建并发送 Markdown 格式的报警通知，包含报警名称、主机 IP 和描述等内容。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

import json
import requests
import time
import hmac
import hashlib
import base64
import urllib.parse
from urllib.parse import urlparse

from flask import Flask
from flask import request

app = Flask(__name__)

@app.route('/', methods=['POST', 'GET'])
def send():
    if request.method == 'POST':
        post_data = request.get_data()
        app.logger.debug(post_data)
        send_alert(json.loads(post_data))
        return 'success'
    else:
        return 'weclome to use prometheus alertmanager dingtalk webhook server!'


def send_alert(data):
    token = 'xx'
    secret = 'xx'
    timestamp = int(round(time.time() * 1000))
    url = 'https://oapi.dingtalk.com/robot/send?access_token=%s&timestamp=%d&sign=%s' % (token, timestamp, make_sign(timestamp, secret))

    alerts = data['alerts']
    alert_name = alerts[0]['labels']['alertname']
    data_count = []
    for k in alerts:
        a= k['labels']['job']
        b = k['labels']['instance']
        c = k['annotations']['description']
        data_count.append('\n' + '--------------------------' + '\n' + "名称: "  + a + '\n' +'主机IP:' +  b + '\n' + '内容:' + c)
    data_count  = "\n".join(data_count)

    title = '%s 有 %d 条新的报警' % (alert_name, len(alerts))

    send_data = {
        "msgtype": "markdown",
        "markdown": {
            "title": title,
            "text": title + "\n" + "![](https://bxdc-static.oss-cn-beijing.aliyuncs.com/images/prometheus-recording-rules.png)\n" + data_count
        }
    }

    req = requests.post(url, json=send_data)

def make_sign(timestamp, secret):
    secret_enc = bytes(secret, 'utf-8')
    string_to_sign = '{}\n{}'.format(timestamp, secret)
    string_to_sign_enc = bytes(string_to_sign, 'utf-8')
    hmac_code = hmac.new(secret_enc, string_to_sign_enc, digestmod=hashlib.sha256).digest()
    sign = urllib.parse.quote_plus(base64.b64encode(hmac_code))
    return sign


if __name__ == '__main__':
    app.run(host='0.0.0.0', port=5000)