普罗米修斯的Traefik入口

Question

我想将传入流量重定向到myserver.mydomain.com/prometheus到我的prometheus pod。以下是我尝试实现这一点的YAML文件：

以下是部署清单：

apiVersion: apps/v1
kind: Deployment
metadata:
  name: prometheus-deployment
  namespace: monitoring
spec:
  replicas: 1
  selector:
    matchLabels:
      app: prometheus-server
  template:
    metadata:
      labels:
        app: prometheus-server
    spec:
      containers:
        - name: prometheus
          image: prom/prometheus:latest
          args:
            - "--config.file=/etc/prometheus/prometheus.yml"
            - "--storage.tsdb.path=/prometheus/"
            - "--web.external-url=http://myserver.mydomain.com/prometheus"
          ports:
            - containerPort: 9090
          volumeMounts:
            - name: prometheus-config-volume
              mountPath: /etc/prometheus/
            - name: prometheus-storage-volume
              mountPath: /prometheus/
      volumes:
        - name: prometheus-config-volume
          configMap:
            defaultMode: 420
            name: prometheus-server-conf

        - name: prometheus-storage-volume
          persistentVolumeClaim:
            claimName: prometheus-local-zfs-pvc

服务清单...

apiVersion: v1
kind: Service
metadata:
  name: prometheus-service
  namespace: monitoring
  annotations:
      prometheus.io/scrape: 'true'
      prometheus.io/port:   '9090'
spec:
  selector:
    app: prometheus-server
  ports:
    - name: http
      protocol: TCP
      port: 80
      targetPort: 9090

...and入口清单...

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: prometheus-ingress
  namespace: monitoring
  annotations:
    kubernetes.io/ingress.class: traefik
spec:
  rules:
  - host: myserver.mydomain.com
    http:
      paths:
      - path: /prometheus
        backend:
          serviceName: prometheus-service
          servicePort: 80

但是，这将返回一个404。我做错了什么？

编辑:我已经按照@coderanger的建议添加了选项。我在应用新部署时注意到的一件事是，在删除旧pod之前启动新pod时，似乎存在锁定问题，日志中的错误为err="opening storage failed: lock DB directory: resource temporarily unavailable....

Answer 1

您需要在Prometheus命令行选项上传递--web.external-url，因为您要将它移动到子路径。