kubernetes监控:grafana plugins IN kubernetes

标签：kubernetes监控   grafana-kubernetes   

apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
  name: prometheus
  namespace: monitor
rules:
- apiGroups: [""]
  resources:
  - nodes
  - nodes/proxy
  - services
  - endpoints
  - pods
  verbs: ["get", "list", "watch"]
- apiGroups:
  - extensions
  resources:
  - ingresses
  verbs: ["get", "list", "watch"]
- nonResourceURLs: ["/metrics"]
  verbs: ["get"]
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: prometheus
  namespace: monitor
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: prometheus
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: prometheus
subjects:
- kind: ServiceAccount
  name: prometheus
  namespace: monitor

cat prom-config-kubernetes.yaml

apiVersion: v1
kind: ConfigMap
metadata:
 name: prometheus-config
 namespace: monitor
data:
 prometheus.yml: |
  global:
  scrape_configs:
   - job_name: ‘kubernetes-kubelet‘
     scheme: https
     tls_config:
       ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
       insecure_skip_verify: true
     bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
     kubernetes_sd_configs:
     - role: node
     relabel_configs:
     - action: labelmap
       regex: __meta_kubernetes_node_label_(.+)
     - target_label: __address__
       replacement: kubernetes.default.svc.cluster.local:443
     - source_labels: [__meta_kubernetes_node_name]
       regex: (.+)
       target_label: __metrics_path__
       replacement: /api/v1/nodes/${1}/proxy/metrics
   - job_name: ‘kubernetes-cadvisor‘
     scheme: https
     tls_config:
       ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
       insecure_skip_verify: true
     bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
     kubernetes_sd_configs:
     - role: node
     relabel_configs:
     - action: labelmap
       regex: __meta_kubernetes_node_label_(.+)
     - target_label: __address__
       replacement: kubernetes.default.svc.cluster.local:443
     - source_labels: [__meta_kubernetes_node_name]
       regex: (.+)
       target_label: __metrics_path__
       replacement: /api/v1/nodes/${1}/proxy/metrics/cadvisor
   - job_name: ‘kubernetes-kube-state‘
     kubernetes_sd_configs:
     - role: pod
     relabel_configs:
     - action: labelmap
       regex: __meta_kubernetes_pod_label_(.+)
     - source_labels: [__meta_kubernetes_namespace]
       action: replace
       target_label: kubernetes_namespace
     - source_labels: [__meta_kubernetes_pod_name]
       action: replace
       target_label: kubernetes_pod_name
     - source_labels: [__meta_kubernetes_pod_label_grafanak8sapp]
       regex: .*true.*
       action: keep
     - source_labels: [‘__meta_kubernetes_pod_label_daemon‘, ‘__meta_kubernetes_pod_node_name‘]
       regex: ‘node-exporter;(.*)‘
       action: replace
       target_label: nodename

cat prom-install.yaml

apiVersion: v1
kind: ConfigMap
metadata:
 name: prometheus-config-test
 namespace: monitor
data:
 prometheus.yml: |
  global:
  scrape_configs:
   - job_name: ‘kubernetes-kubelet‘
     scheme: https
     tls_config:
       ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
       insecure_skip_verify: true
     bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
     kubernetes_sd_configs:
     - role: node
     relabel_configs:
     - action: labelmap
       regex: __meta_kubernetes_node_label_(.+)
     - target_label: __address__
       replacement: kubernetes.default.svc.cluster.local:443
     - source_labels: [__meta_kubernetes_node_name]
       regex: (.+)
       target_label: __metrics_path__
       replacement: /api/v1/nodes/${1}/proxy/metrics
   - job_name: ‘kubernetes-cadvisor‘
     scheme: https
     tls_config:
       ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
       insecure_skip_verify: true
     bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
     kubernetes_sd_configs:
     - role: node
     relabel_configs:
     - action: labelmap
       regex: __meta_kubernetes_node_label_(.+)
     - target_label: __address__
       replacement: kubernetes.default.svc.cluster.local:443
     - source_labels: [__meta_kubernetes_node_name]
       regex: (.+)
       target_label: __metrics_path__
       replacement: /api/v1/nodes/${1}/proxy/metrics/cadvisor
   - job_name: ‘kubernetes-kube-state‘
     kubernetes_sd_configs:
     - role: pod
     relabel_configs:
     - action: labelmap
       regex: __meta_kubernetes_pod_label_(.+)
     - source_labels: [__meta_kubernetes_namespace]
       action: replace
       target_label: kubernetes_namespace
     - source_labels: [__meta_kubernetes_pod_name]
       action: replace
       target_label: kubernetes_pod_name
     - source_labels: [__meta_kubernetes_pod_label_grafanak8sapp]
       regex: .*true.*
       action: keep
     - source_labels: [‘__meta_kubernetes_pod_label_daemon‘, ‘__meta_kubernetes_pod_node_name‘]
       regex: ‘node-exporter;(.*)‘
       action: replace
       target_label: nodename

   - job_name: ‘tomcat-pods‘
     kubernetes_sd_configs:
     - role: pod
     relabel_configs:
     - source_labels: [__meta_kubernetes_namespace]
       regex: tomcat
       action: keep
     - source_labels: [__meta_kubernetes_pod_container_port_number]
       regex: 1234
       action: keep
     - source_labels: [__meta_kubernetes_pod_name]
       action: replace
       target_label: kubernetes_pod_name
[root@k8s-master1 monitor]# cat prom/prom-install.yaml 
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
 labels:
  name: prometheus
 name: prometheus
 namespace: monitor
spec:
  replicas: 1
  template:
   metadata:
    labels:
      app: prometheus-server
   spec:
    serviceAccountName: prometheus
    containers:
    - name: prometheus
      image: hub.llzg.com.cn/monitor/prometheus:latest
      imagePullPolicy: Always
      ports:
        - containerPort: 9090
          protocol: TCP
      volumeMounts:
        - mountPath: "/etc/prometheus"
          name: config-prometheus
    imagePullSecrets:
    - name: authllzg
    volumes:
    - name: config-prometheus
      configMap:
       name: prometheus-config

cat prom-svc.yaml

kind: Service
apiVersion: v1
metadata:
  name: prometheus-ingress-service
  namespace: monitor
spec:
  selector:
     app: prometheus-server
  ports:
    - protocol: TCP
      port: 9090
      name: prom
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: prom-web-ui
  namespace: monitor
spec:
  rules:
  - host: prom.name.com.cn
    http:
      paths:
      - path: /
        backend:
          serviceName: prometheus-ingress-service
          servicePort: prom

2、安装state-metrics
cat state-metrics-rbac.yaml

apiVersion: v1
kind: ServiceAccount
metadata:
  name: kube-state-metrics
  namespace: monitor
---

apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  namespace: monitor
  name: kube-state-metrics-resizer
rules:
- apiGroups: [""]
  resources:
  - pods
  verbs: ["get"]
- apiGroups: ["extensions"]
  resources:
  - deployments
  resourceNames: ["kube-state-metrics"]
  verbs: ["get", "update"]
---

apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: kube-state-metrics
  namespace: monitor
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: kube-state-metrics-resizer
subjects:
- kind: ServiceAccount
  name: kube-state-metrics
  namespace: monitor
---

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: kube-state-metrics
  namespace: monitor
rules:
- apiGroups: [""]
  resources:
  - nodes
  - pods
  - services
  - resourcequotas
  - replicationcontrollers
  - limitranges
  - persistentvolumeclaims
  - persistentvolumes
  - namespaces
  - endpoints
  verbs: ["list", "watch"]
- apiGroups: ["extensions"]
  resources:
  - daemonsets
  - deployments
  - replicasets
  verbs: ["list", "watch"]
- apiGroups: ["apps"]
  resources:
  - statefulsets
  verbs: ["list", "watch"]
- apiGroups: ["batch"]
  resources:
  - cronjobs
  - jobs
  verbs: ["list", "watch"]
- apiGroups: ["autoscaling"]
  resources:
  - horizontalpodautoscalers
  verbs: ["list", "watch"]
---

apiVersion: rbac.authorization.k8s.io/v1 
kind: ClusterRoleBinding
metadata:
  name: kube-state-metrics
  namespace: monitor
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: kube-state-metrics
subjects:
- kind: ServiceAccount
  name: kube-state-metrics
  namespace: monitor
---

{
  "apiVersion": "apps/v1beta1",
  "kind": "Deployment",
  "metadata": {
    "name": "kube-state-metrics",
    "namespace": "monitor"
  },
  "spec": {
    "selector": {
      "matchLabels": {
        "k8s-app": "kube-state-metrics",
        "grafanak8sapp": "true"
      }
    },
    "replicas": 1,
    "template": {
      "metadata": {
        "labels": {
          "k8s-app": "kube-state-metrics",
          "grafanak8sapp": "true"
        }
      },
      "spec": {
        "serviceAccountName": "kube-state-metrics",
        "containers": [
          {
            "name": "kube-state-metrics",
            "image": "hub.llzg.com.cn/monitor/kube-state-metrics:v1.1.0",
            "ports": [
              {
                "name": "http-metrics",
                "containerPort": 8080
              }
            ],
            "readinessProbe": {
              "httpGet": {
                "path": "/healthz",
                "port": 8080
              },
              "initialDelaySeconds": 5,
              "timeoutSeconds": 5
            }
          }
        ],
        "imagePullSecrets": [
          {
            "name": "authllzg"
              }
            ]
      }
    }
  }
}

3、安装node-exporter
cat node-exporter.yaml

{
  "kind": "DaemonSet",
  "apiVersion": "extensions/v1beta1",
  "metadata": {
    "name": "node-exporter",
    "namespace": "monitor"
  },
  "spec": {
    "selector": {
      "matchLabels": {
        "daemon": "node-exporter",
        "grafanak8sapp": "true"
      }
    },
    "template": {
      "metadata": {
        "name": "node-exporter",
        "labels": {
          "daemon": "node-exporter",
          "grafanak8sapp": "true"
        }
      },
      "spec": {
        "volumes": [
          {
            "name": "proc",
            "hostPath": {
              "path": "/proc"
            }
          },
          {
            "name": "sys",
            "hostPath": {
              "path": "/sys"
            }
          }
        ],
        "containers": [
          {
            "name": "node-exporter",
            "image": "hub.llzg.com.cn/monitor/node-exporter:v0.15.0",
            "args": [
              "--path.procfs=/proc_host",
              "--path.sysfs=/host_sys"
            ],
            "ports": [
              {
                "name": "node-exporter",
                "hostPort": 9100,
                "containerPort": 9100
              }
            ],
            "volumeMounts": [
              {
                "name": "sys",
                "readOnly": true,
                "mountPath": "/host_sys"
              },
              {
                "name": "proc",
                "readOnly": true,
                "mountPath": "/proc_host"
              }
            ],
            "imagePullPolicy": "IfNotPresent"
          }
        ],
        "restartPolicy": "Always",
        "hostNetwork": true,
        "hostPID": true
      }
    }
  }
}

4、安装grafana(添加grafana-kubernetes-app插件)
cat grafana.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
 labels:
  name: grafana-server
 name: grafana
 namespace: monitor
spec:
  replicas: 1
  template:
   metadata:
    labels:
      app: grafana-server
   spec:
    serviceAccountName: prometheus
    containers:
    - name: grafana
      image: hub.llzg.com.cn/monitor/grafana:latest
      ports:
        - containerPort: 3000
          protocol: TCP
      volumeMounts:
      - mountPath: "/var/lib/grafana"
        readOnly: false
        name: grafana-nfs
      env:
      - name: GF_INSTALL_PLUGINS
        value: "grafana-kubernetes-app"
    imagePullSecrets:
    - name: authllzg
    volumes:
    - name: grafana-nfs
      nfs:
       server: 192.168.10.28
       path: "/data/nfs/monitor/grafana"
---
kind: Service
apiVersion: v1
metadata:
  name: grafana-ingress-service
  namespace: monitor
spec:
  selector:
    app: grafana-server
  ports:
    - protocol: TCP
      port: 3000
      name: grafana
---

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: grafana-ingress
  namespace: monitor
  annotations:
    kubernetes.io/ingress.class: traefik
spec:
  rules:
  - host: grafana.llzg.com.cn
    http:
      paths:
      - path: /
        backend:
          serviceName: grafana-ingress-service
          servicePort: grafana

５、grafana+prometheus监控显示kubernetes
(1)grafana添加prometheus

(2)加载grafana-kubernetes-app插件
configuration---->plugins--------->kubernetes
(3)配置grafana-kubernetes-app插件

４、OK，去看图吧

kubernetes监控:grafana plugins IN kubernetes

标签：kubernetes监控   grafana-kubernetes   

原文地址：http://blog.51cto.com/11578535/2095343