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‎README.md

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- https://gongzhao1.github.io/Kubernetes%E9%9B%86%E7%BE%A4%E6%97%A5%E5%BF%97%E6%94%B6%E9%9B%86-Filebeat-ELK/
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```shell
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kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.1.1/deploy/static/provider/cloud/deploy.yaml
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```

‎apps/grafana/grafana.yaml

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apiVersion: storage.k8s.io/v1
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kind: StorageClass
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metadata:
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name: example-kubernetes-app-grafana-storage
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name: grafana-storage
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namespace: monitoring
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provisioner: kubernetes.io/no-provisioner
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volumeBindingMode: WaitForFirstConsumer
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---
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apiVersion: v1
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kind: PersistentVolume
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metadata:
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name: example-kubernetes-app-grafana-pv
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name: grafana-pv
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namespace: monitoring
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spec:
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capacity:
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storage: 2Gi
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volumeMode: Filesystem # Filesystem（文件系统） Block（块）
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accessModes:
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- ReadWriteOnce # 卷可以被一个节点以读写方式挂载
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persistentVolumeReclaimPolicy: Delete
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storageClassName: example-kubernetes-app-grafana-storage
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storageClassName: grafana-storage
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local:
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path: /Users/toquery/data/grafana-data
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nodeAffinity:
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kind: PersistentVolumeClaim
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metadata:
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name: grafana-pvc
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namespace: monitoring
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spec:
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accessModes:
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- ReadWriteOnce
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storageClassName: example-kubernetes-app-grafana-storage
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storageClassName: grafana-storage
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resources:
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requests:
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storage: 1Gi
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labels:
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app: grafana
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name: grafana
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namespace: monitoring
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spec:
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selector:
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matchLabels:
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- containerPort: 3000
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name: http-grafana
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protocol: TCP
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# readinessProbe:
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# failureThreshold: 3
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# httpGet:
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# path: /robots.txt
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# port: 3000
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# scheme: HTTP
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# initialDelaySeconds: 10
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# periodSeconds: 30
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# successThreshold: 1
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# timeoutSeconds: 2
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# livenessProbe:
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# failureThreshold: 3
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# initialDelaySeconds: 30
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# periodSeconds: 10
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# successThreshold: 1
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# tcpSocket:
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# port: 3000
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# timeoutSeconds: 1
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resources:
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requests:
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cpu: 250m
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memory: 750Mi
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volumeMounts:
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- mountPath: /var/lib/grafana
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name: grafana-pv
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apiVersion: v1
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kind: Service
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metadata:
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name: grafana
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name: grafana-service
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namespace: monitoring
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spec:
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ports:
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- port: 3000
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selector:
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app: grafana
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sessionAffinity: None
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type: NodePort
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type: ClusterIP
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---
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## Nginx Ingress
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## Follow https://devopscube.com/setup-ingress-kubernetes-nginx-controller/
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apiVersion: networking.k8s.io/v1
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kind: Ingress
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metadata:
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name: grafana-ui
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namespace: monitoring
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annotations:
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kubernetes.io/ingress.class: nginx
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spec:
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rules:
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# Use the host you used in your kubernetes Ingress Configurations
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- host: grafana.example-kubernetes.com
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http:
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paths:
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- path: /
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pathType: Prefix
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backend:
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service:
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name: grafana-service
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port:
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number: 3000

‎apps/ingress-controller-nginx/apple.yaml

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apiVersion: v1
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metadata:
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name: apple-app
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namespace: example-kubernetes
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# namespace: example-kubernetes
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labels:
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app: apple
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spec:
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apiVersion: v1
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metadata:
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name: apple-service
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namespace: example-kubernetes
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# namespace: example-kubernetes
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spec:
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selector:
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app: apple

‎apps/ingress-controller-nginx/banana.yaml

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apiVersion: v1
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metadata:
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name: banana-app
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namespace: example-kubernetes
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# namespace: example-kubernetes
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labels:
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app: banana
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spec:
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apiVersion: v1
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metadata:
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name: banana-service
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namespace: example-kubernetes
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# namespace: example-kubernetes
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spec:
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selector:
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app: banana

‎apps/ingress-controller-nginx/ingress.yaml

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kind: Ingress
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metadata:
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name: example-ingress
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namespace: example-kubernetes
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# namespace: example-kubernetes
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# annotations:ingress-controller-kong
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# kubernetes.io/ingress.class: "kong" # 控制器使用nginx
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spec:

‎apps/prometheus/01.prometheus-ns.yaml

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apiVersion: v1
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kind: Namespace
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metadata:
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name: monitoring

‎apps/prometheus/02.prometheus-rbac.yaml

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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: prometheus
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namespace: monitoring
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rules:
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- apiGroups: [""]
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resources:
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- nodes
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- nodes/proxy
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- services
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- endpoints
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- pods
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verbs:
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- get
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- list
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- watch
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- apiGroups:
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- extensions
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resources:
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- ingresses
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verbs:
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- get
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- list
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- watch
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- nonResourceURLs:
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- "/metrics"
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verbs:
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- get
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: prometheus
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namespace: monitoring
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: prometheus
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subjects:
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- kind: ServiceAccount
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namespace: default
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name: default

‎apps/prometheus/03.prometheus-cm.yaml

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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: prometheus-server-conf
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namespace: monitoring
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labels:
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name: prometheus-server-conf
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data:
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prometheus.rules: |-
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groups:
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- name: devopscube demo alert
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rules:
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- alert: High Pod Memory
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expr: sum(container_memory_usage_bytes) > 1
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for: 1m
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labels:
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severity: slack
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annotations:
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summary: High Memory Usage
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prometheus.yml: |-
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global:
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scrape_interval: 5s
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evaluation_interval: 5s
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rule_files:
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- /etc/prometheus/prometheus.rules
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alerting:
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alertmanagers:
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- scheme: http
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static_configs:
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- targets:
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- "alertmanager.monitoring.svc:9093"
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scrape_configs:
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- job_name: 'node-exporter'
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kubernetes_sd_configs:
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- role: endpoints
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relabel_configs:
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- source_labels: [__meta_kubernetes_endpoints_name]
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regex: 'node-exporter'
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action: keep
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- job_name: 'kubernetes-apiservers'
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kubernetes_sd_configs:
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- role: endpoints
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scheme: https
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tls_config:
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ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
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bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
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relabel_configs:
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- source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
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action: keep
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regex: default;kubernetes;https
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- job_name: 'kubernetes-nodes'
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scheme: https
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tls_config:
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ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
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bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
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kubernetes_sd_configs:
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- role: node
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relabel_configs:
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- action: labelmap
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regex: __meta_kubernetes_node_label_(.+)
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- target_label: __address__
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replacement: kubernetes.default.svc:443
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- source_labels: [__meta_kubernetes_node_name]
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regex: (.+)
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target_label: __metrics_path__
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replacement: /api/v1/nodes/${1}/proxy/metrics
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- job_name: 'kubernetes-pods'
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kubernetes_sd_configs:
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- role: pod
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relabel_configs:
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- source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape]
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action: keep
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regex: true
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- source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_path]
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action: replace
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target_label: __metrics_path__
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regex: (.+)
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- source_labels: [__address__, __meta_kubernetes_pod_annotation_prometheus_io_port]
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action: replace
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regex: ([^:]+)(?::\d+)?;(\d+)
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replacement: $1:$2
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target_label: __address__
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- action: labelmap
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regex: __meta_kubernetes_pod_label_(.+)
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- source_labels: [__meta_kubernetes_namespace]
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action: replace
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target_label: kubernetes_namespace
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- source_labels: [__meta_kubernetes_pod_name]
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action: replace
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target_label: kubernetes_pod_name
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- job_name: 'kube-state-metrics'
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static_configs:
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- targets: ['kube-state-metrics.kube-system.svc.cluster.local:8080']
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- job_name: 'kubernetes-cadvisor'
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scheme: https
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tls_config:
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ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
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bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
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kubernetes_sd_configs:
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- role: node
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relabel_configs:
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- action: labelmap
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regex: __meta_kubernetes_node_label_(.+)
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- target_label: __address__
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replacement: kubernetes.default.svc:443
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- source_labels: [__meta_kubernetes_node_name]
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regex: (.+)
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target_label: __metrics_path__
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replacement: /api/v1/nodes/${1}/proxy/metrics/cadvisor
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- job_name: 'kubernetes-service-endpoints'
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kubernetes_sd_configs:
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- role: endpoints
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relabel_configs:
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- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape]
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action: keep
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regex: true
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- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scheme]
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action: replace
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target_label: __scheme__
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regex: (https?)
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- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_path]
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action: replace
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target_label: __metrics_path__
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regex: (.+)
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- source_labels: [__address__, __meta_kubernetes_service_annotation_prometheus_io_port]
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action: replace
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target_label: __address__
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regex: ([^:]+)(?::\d+)?;(\d+)
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replacement: $1:$2
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- action: labelmap
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regex: __meta_kubernetes_service_label_(.+)
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- source_labels: [__meta_kubernetes_namespace]
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action: replace
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target_label: kubernetes_namespace
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- source_labels: [__meta_kubernetes_service_name]
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action: replace
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target_label: kubernetes_name

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