[kubernetes]step8-创建efk监控

创建监控

kubectl create sa dashboard-admin -n kube-system
kubectl create clusterrolebinding dashboard-admin --clusterrole=cluster-admin --serviceaccount=kube-system:dashboard-admin
ADMIN_SECRET=$(kubectl get secrets -n kube-system | grep dashboard-admin | awk '{print $1}')
kubectl describe secret -n kube-system ${ADMIN_SECRET} |grep -E '^token' |awk '{print $2}'

kubectl apply -f elasticsearch.yaml

---
apiVersion: v1
kind: Service
metadata:
  name: elasticsearch-api
  namespace: kube-system
  labels:
    name: elasticsearch
spec:
  selector:
    app: es
  ports:
  - name: transport
    port: 9200
    protocol: TCP
---
apiVersion: v1
kind: Service
metadata:
  name: elasticsearch-discovery
  namespace: kube-system
  labels:
    name: elasticsearch
spec:
  selector:
    app: es
  ports:
  - name: transport
    port: 9300
    protocol: TCP
---
apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: elasticsearch
  namespace: kube-system
  labels:
    kubernetes.io/cluster-service: "true"
spec:
  replicas: 3
  serviceName: "elasticsearch-service"
  selector:
    matchLabels:
      app: es
  template:
    metadata:
      labels:
        app: es
    spec:
      tolerations:
      - effect: NoSchedule
        key: node-role.kubernetes.io/master
      serviceAccountName: dashboard-admin
      initContainers:
      - name: init-sysctl
        image: busybox:1.27
        command:
        - sysctl
        - -w
        - vm.max_map_count=262144
        securityContext:
          privileged: true
      containers:
      - name: elasticsearch
        image: elasticsearch:6.8.3
        #image: registry.cn-hangzhou.aliyuncs.com/imooc/elasticsearch:5.5.1
        ports:
        - containerPort: 9200
          protocol: TCP
        - containerPort: 9300
          protocol: TCP
        securityContext:
          capabilities:
            add:
              - IPC_LOCK
              - SYS_RESOURCE
        resources:
          limits:
            memory: 4000Mi
          requests:
            cpu: 100m
            memory: 2000Mi
        env:
          - name: "http.host"
            value: "0.0.0.0"
          - name: "network.host"
            value: "_eth0_"
          - name: "cluster.name"
            value: "docker-cluster"
          - name: "bootstrap.memory_lock"
            value: "false"
          - name: "discovery.zen.ping.unicast.hosts"
            value: "elasticsearch-discovery"
          - name: "discovery.zen.ping.unicast.hosts.resolve_timeout"
            value: "10s"
          - name: "discovery.zen.ping_timeout"
            value: "6s"
          - name: "discovery.zen.minimum_master_nodes"
            value: "2"
          - name: "discovery.zen.fd.ping_interval"
            value: "2s"
          - name: "discovery.zen.no_master_block"
            value: "write"
          - name: "gateway.expected_nodes"
            value: "2"
          - name: "gateway.expected_master_nodes"
            value: "1"
          - name: "transport.tcp.connect_timeout"
            value: "60s"
          - name: "ES_JAVA_OPTS"
            value: "-Xms2g -Xmx2g"
        livenessProbe:
          tcpSocket:
            port: transport
          initialDelaySeconds: 20
          periodSeconds: 10
        volumeMounts:
        - name: es-data
          mountPath: /data
      terminationGracePeriodSeconds: 30
      volumes:
      - name: es-data
        hostPath:
          path: /es-data

kubectl get statefulset -n kube-system

kubectl apply -f log-pilot.yaml

---
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
  name: log-pilot
  namespace: kube-system
  labels:
    k8s-app: log-pilot
    kubernetes.io/cluster-service: "true"
spec:
  template:
    metadata:
      labels:
        k8s-app: log-es
        kubernetes.io/cluster-service: "true"
        version: v1.22
    spec:
      tolerations:
      - key: node-role.kubernetes.io/master
        effect: NoSchedule
      serviceAccountName: dashboard-admin
      containers:
      - name: log-pilot
        image: registry.cn-hangzhou.aliyuncs.com/imooc/log-pilot:0.9-filebeat
        resources:
          limits:
            memory: 200Mi
          requests:
            cpu: 100m
            memory: 200Mi
        env:
          - name: "FILEBEAT_OUTPUT"
            value: "elasticsearch"
          - name: "ELASTICSEARCH_HOST"
            value: "elasticsearch-api"
          - name: "ELASTICSEARCH_PORT"
            value: "9200"
          - name: "ELASTICSEARCH_USER"
            value: "elastic"
          - name: "ELASTICSEARCH_PASSWORD"
            value: "changeme"
        volumeMounts:
        - name: sock
          mountPath: /var/run/docker.sock
        - name: root
          mountPath: /host
          readOnly: true
        - name: varlib
          mountPath: /var/lib/filebeat
        - name: varlog
          mountPath: /var/log/filebeat
        securityContext:
          capabilities:
            add:
            - SYS_ADMIN
      terminationGracePeriodSeconds: 30
      volumes:
      - name: sock
        hostPath:
          path: /var/run/docker.sock
      - name: root
        hostPath:
          path: /
      - name: varlib
        hostPath:
          path: /var/lib/filebeat
          type: DirectoryOrCreate
      - name: varlog
        hostPath:
          path: /var/log/filebeat
          type: DirectoryOrCreate

kubectl log -f log-pilot-l2rk2 -n kube-system

启动kibana

kubectl apply -f kibana.yaml

---
apiVersion: v1
kind: Service
metadata:
  name: kibana
  namespace: kube-system
  labels:
    component: kibana
spec:
  selector:
    component: kibana
  ports:
  - name: http
    port: 80
    targetPort: http
---
#ingress
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: kibana
  namespace: kube-system
spec:
  rules:
  - host: k8s-kibana.aircourses.com
    http:
      paths:
      - path: /
        backend:
          serviceName: kibana
          servicePort: 80
---
apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: kibana
  namespace: kube-system
  labels:
    component: kibana
spec:
  replicas: 1
  selector:
    matchLabels:
     component: kibana
  template:
    metadata:
      labels:
        component: kibana
    spec:
      containers:
      - name: kibana
        image: kibana:6.8.3
        env:
        - name: CLUSTER_NAME
          value: docker-cluster
        - name: ELASTICSEARCH_URL
          value: http://elasticsearch-api:9200/
        resources:
          limits:
            cpu: 1000m
          requests:
            cpu: 100m
        ports:
        - containerPort: 5601
          name: http

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创建测试的deploy

---
apiVersion: v1
kind: Service
metadata:
  name: kibana
  namespace: kube-system
  labels:
    component: kibana
spec:
  selector:
    component: kibana
  ports:
  - name: http
    port: 80
    targetPort: http
---
#ingress
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
    nginx.ingress.kubernetes.io/whitelist-source-range: "60.191.70.64/29, 192.168.0.0/16, 47.111.185.111, 47.97.113.64, 47.99.246.58, 47.111.170.245, 47.111.247.117, 47.99.244.221, 47.110.144.233, 47.110.144.233, 121.41.103.54, 121.40.186.211, 121.40.16.165, 121.40.16.63, 60.191.70.66 ,60.191.70.68"
  name: kibana
  namespace: kube-system
spec:
  rules:
  - host: k8s-kibana.aircourses.com
    http:
      paths:
      - path: /
        backend:
          serviceName: kibana
          servicePort: 80
---
apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: kibana
  namespace: kube-system
  labels:
    component: kibana
spec:
  replicas: 1
  selector:
    matchLabels:
     component: kibana
  template:
    metadata:
        - name: aliyun_logs_catalina
          value: "stdout"
        - name: aliyun_logs_access
          value: "/usr/local/tomcat/logs/*"
        volumeMounts:
        - mountPath: /usr/local/tomcat/logs
          name: accesslogs
      imagePullSecrets:
        - name: myregistrykey
      volumes:
      - name: accesslogs
        emptyDir: {}
---
#service
apiVersion: v1
kind: Service
metadata:
  name: web-demo
spec:
  ports:
  - port: 80
    protocol: TCP
    targetPort: 8080
  selector:
    app: web-demo
  type: ClusterIP

---
#ingress
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: web-demo
spec:
  rules:
  - host: web.aircourses.com
    http:
      paths:
      - path: /
        backend:
          serviceName: web-demo
          servicePort: 80

查案log-pilot的日志

看到kibana里已经有索引了

用公司的的项目测试

调整后的deployment

apiVersion: apps/v1
kind: Deployment
metadata:
# deployment名字 和svc 和ingress绑定没关系
  name: pre-demojob-dp
  namespace: default
spec:
  replicas: 2
  # 在定义模板的时候必须定义labels,因为Deployment.spec.selector是必须字段,而他又必须和template.labels对应
  selector:
    matchLabels:
      app: pre-demojob
  # template里面定义的内容会应用到下面所有的副本集里面(例如depolyment下的pod),在template.spec.containers里面不能定义labels标签。可以kubectl get pods --show-labels查看
  template:
    metadata:
      labels:
        app: pre-demojob
        env: pre
    spec:
      containers:
      # containers名字 和svc 和ingress绑定没关系
      - name: pre-demojob
        image: harbor.aircourses.com/kubernetes/demojob:vversion
        #image: harbor.aircourses.com/kubernetes/wehub:v7.80
        lifecycle:
          # sleep 30用于确保原有的pod 不是全部马上退出 造成eureka上服务一个pod都没有
          postStart:
            exec:
              command: ["/bin/sleep", "30"]
          preStop:
            exec:
              command: ["/bin/sh", "-c", "sh /data/module/demojob/bin/start.sh stop"]
        ports:
        - name: http
          containerPort: 80
        env:
        - name: aliyun_logs_execute-pre-demojob
          value: "stdout"
        - name: aliyun_logs_docker-info-pre-demojob
          value: "/data/module/demojob/k8s-log/execute.log"
        volumeMounts:
        - mountPath: /data/module/demojob/k8s-log
          name: accesslogs
      volumes:
      - name: accesslogs
        emptyDir: {}
      imagePullSecrets:
        - name: myregistrykey