K8S - 无法通过 - alertmanager查看警报

Question

我是普罗米修斯运算符，正如预期的那样工作https://github.com/coreos/prometheus-operator

现在我想从头开始应用alert manager

在阅读了文档后，我发现了那些yamls。但问题是当我进入UI时没有显示任何内容，任何想法我想念的是什么？

http://localhost:9090/alerts我使用端口转发...

这是all我已经应用于我的k8s集群的配置文件我只是想做一些简单的测试，看看它是否有效，然后将其扩展到我们的需求......

alertmanger_main.yml

---
apiVersion: monitoring.coreos.com/v1
kind: Alertmanager
metadata:
  name: main
  labels:
    alertmanager: main
spec:
  replicas: 3
  version: v0.14.0

alertmanger_service.yml

apiVersion: v1
kind: Service
metadata:
  name: alertmanager-main
spec:
  type: LoadBalancer
  ports:
  - name: web
    port: 9093
    protocol: TCP
    targetPort: web
  selector:
    alertmanager: main

testalert.yml

kind: ConfigMap
apiVersion: v1
metadata:
  name: prometheus-example-rules
  labels:
    role: prometheus-rulefiles
    prometheus: prometheus
data:
  example.rules.yaml: |+
    groups:
    - name: ./example.rules
      rules:
      - alert: ExampleAlert
        expr: vector(1)

alertmanager.yml

global:
  resolve_timeout: 5m
route:
  group_by: ['job']
  group_wait: 30s
  group_interval: 5m
  repeat_interval: 12h
  receiver: 'webhook'
receivers:
- name: 'webhook'
  webhook_configs:
  - url: 'http://alertmanagerwh:30500/'

并创造我使用的秘密

kubectl create secret generic alertmanager-main --from-file=alertmanager.yaml

我需要的是K8S中的一些基本警报，我按照文档但没有找到任何好的一步一步的教程

to check my sys for monitoring namespace

 ~  kubectl get pods -n monitoring                                                                                                                                                13.4m  Sun Feb 17 18:48:16 2019
NAME                                  READY   STATUS    RESTARTS   AGE
kube-state-metrics-593czc6b4-mrtkb   2/2     Running   0          12h
monitoring-grafana-771155cbbb-scqvx   1/1     Running   0          12h
prometheus-operator-79f345dc67-nw5zc   1/1     Running   0          12h
prometheus-prometheus-0               3/3     Running   1          12h
 ~  kubectl get svc -n  monitoring                                                                                                                                                536ms  Sun Feb 17 21:04:51 2019
NAME                   TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE
alertmanager-main   NodePort    100.22.170.666   <none>        9093:30904/TCP   4m53s
kube-state-metrics     ClusterIP   100.34.212.596   <none>        8080/TCP         4d7h
monitoring-grafana     ClusterIP   100.67.230.884   <none>        80/TCP           4d7h
prometheus-operated    ClusterIP   None             <none>        9090/TCP         4d7h

我现在也将服务更改为LoadBalancer，我尝试输入

 ~  kubectl get svc -n  monitoring                                                                                                                                                507ms  Sun Feb 17 21:23:56 2019
NAME                   TYPE           CLUSTER-IP       EXTERNAL-IP      PORT(S)          AGE
alertmanager-main   LoadBalancer   100.22.170.666   38.482.152.331   9093:30904/TCP   23m

当我点击浏览器时

38.482.152.331:9093 
38.482.152.331:30904 

什么都没发生...

Answer 1

当您考虑使用AlertManager时，除了常规配置和应用警报规则外，AlertManager还需要与Prometheus服务器集成。然后，Prometheus实例可以跟踪任何传入的一系列事件，一旦检测到任何可识别的规则，它就会触发对嵌套警报管理器的警报。

为了启用警报，可能需要将以下配置附加到Prometheus实例：

alerting:
  alertmanagers:
  - static_configs:
    - targets:
      - 'alertmanagerIP:9093'

具体来说，对于AlertManager中的CoreOS实现，您可以按照官方Alerting文档中描述的步骤进行操作;但是，您可以在下面找到保留上述指南的Prometheus pod警报配置的示例：

apiVersion: monitoring.coreos.com/v1
kind: Prometheus
metadata:
  name: example
spec:
  replicas: 2
  alerting:
    alertmanagers:
    - namespace: default
      name: alertmanager-example
      port: web
  serviceMonitorSelector:
    matchLabels:
      team: frontend
  resources:
    requests:
      memory: 400Mi
  ruleSelector:
    matchLabels:
      role: prometheus-rulefiles
      prometheus: example