KubeDNS Metrics Exporter to Stackdriver

kube-dns-metrics-exporter.yaml

# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

apiVersion: v1
kind: Service
metadata:
  name: kube-dns-metrics
  namespace: kube-system
spec:
  selector:
    k8s-app: kube-dns
  ports:
    - port: 10054
      name: metrics
      protocol: TCP
      targetPort: 10054
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: kube-dns-metrics-exporter
  namespace: kube-system
  labels:
    k8s-app: kube-dns-metrics-exporter
spec:
  progressDeadlineSeconds: 600
  replicas: 1
  selector:
    matchLabels:
      k8s-app: kube-dns-metrics-exporter
  strategy:
    rollingUpdate:
      maxSurge: 10%
      maxUnavailable: 0
    type: RollingUpdate
  template:
    metadata:
      labels:
        k8s-app: kube-dns-metrics-exporter
    spec:
      serviceAccount: kube-dns
      terminationGracePeriodSeconds: 30
      tolerations:
        - key: CriticalAddonsOnly
          operator: Exists
        - key: components.gke.io/gke-managed-components
          operator: Exists
      containers:
        - name: prometheus-to-sd
          image: k8s.gcr.io/prometheus-to-sd:v0.4.2
          command:
            - /monitor
            - --source=kubedns:http://kube-dns-metrics.kube-system.svc.cluster.local:10054/metrics?whitelisted=probe_kubedns_latency_ms,probe_kubedns_errors,dnsmasq_misses,dnsmasq_hits
            - --stackdriver-prefix=custom.googleapis.com/addons
            - --api-override=https://monitoring.googleapis.com/
            - --pod-id=$(POD_NAME)
            - --namespace-id=$(POD_NAMESPACE)
            - --scrape-interval=30s
            - --v=2
          env:
            - name: POD_NAME
              valueFrom:
                fieldRef:
                  apiVersion: v1
                  fieldPath: metadata.name
            - name: POD_NAMESPACE
              valueFrom:
                fieldRef:
                  apiVersion: v1
                  fieldPath: metadata.namespace