moses-sun/alertmanager-dingtalk-hook

alertmanager dingtalk webhook simple server 🍋 🍊 🍒 🍰 🍇 🍉 🍓 🌽 🍑

alertmanager-dingtalk-hook 🍋 🍊 🍒 🍰 🍇 🍉 🍓 🌽 🍑

AlertManager 钉钉报警简单服务示例

运行

使用Docker运行

$ docker run -p 5000:5000 --name -e ROBOT_TOKEN=<钉钉机器人TOKEN> -e ROBOT_SECRET=<钉钉机器人安全SECRET> -e LOG_LEVEL=debug -e PROME_URL=prometheus.local dingtalk-hook -d cnych/alertmanager-dingtalk-hook:v0.3.5

环境变量配置：

• ROBOT_TOKEN：钉钉机器人 TOKEN
• PROME_URL：手动指定跳转后的 Promethues 地址，默认会是 Pod 的地址
• LOG_LEVEL：日志级别，设置成 debug 可以看到 AlertManager WebHook 发送的数据，方便调试使用，不需调试可以不设置该环境变量
• ROBOT_SECRET：为钉钉机器人的安全设置密钥，机器人安全设置页面，加签一栏下面显示的 SEC 开头的字符串

在Kubernetes集群中运行

第一步建议将钉钉机器人TOKEN创建成Secret资源对象：

$ kubectl create secret generic dingtalk-secret --from-literal=token=<钉钉群聊的机器人TOKEN> --from-literal=secret=<钉钉群聊机器人的SECRET> -n kube-ops
secret "dingtalk-secret" created

然后定义Deployment和Service资源对象：(dingtalk-hook.yaml)

apiVersion: apps/v1
kind: Deployment
metadata:
  name: dingtalk-hook
  namespace: kube-ops
spec:
  selector:
    matchLabels:
      app: dingtalk-hook
  template:
    metadata:
      labels:
        app: dingtalk-hook
    spec:
      containers:
      - name: dingtalk-hook
        image: cnych/alertmanager-dingtalk-hook:v0.3.6
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 5000
          name: http
        env:
        - name: PROME_URL
          value: prometheus.local
        - name: LOG_LEVEL
          value: debug
        - name: ROBOT_TOKEN
          valueFrom:
            secretKeyRef:
              name: dingtalk-secret
              key: token
        - name: ROBOT_SECRET
          valueFrom:
            secretKeyRef:
              name: dingtalk-secret
              key: secret
        resources:
          requests:
            cpu: 50m
            memory: 100Mi
          limits:
            cpu: 50m
            memory: 100Mi

---
apiVersion: v1
kind: Service
metadata:
  name: dingtalk-hook
  namespace: kube-ops
spec:
  selector:
    app: dingtalk-hook
  ports:
  - name: hook
    port: 5000
    targetPort: http

直接创建上面的资源对象即可：

$ kubectl create -f dingtalk-hook.yaml
deployment.apps "dingtalk-hook" created
service "dingtalk-hook" created
$ kubectl get pods -n kube-ops
NAME                            READY     STATUS      RESTARTS   AGE
dingtalk-hook-c4fcd8cd6-6r2b6   1/1       Running     0          45m
......

最后在AlertManager中 webhook 地址直接通过 DNS 形式访问即可：

receivers:
- name: 'webhook'
  webhook_configs:
  - url: 'http://dingtalk-hook.kube-ops.svc.cluster.local:5000'
    send_resolved: true

参考文档

• 钉钉自定义机器人文档
• AlertManager 的使用