efk收集k8s 容器日志安装记录

其他 2020-01-20 11:50:51 阅读次数: 0 
部署环境
$ kubectl get  node
NAME       STATUS     ROLES    AGE   VERSION
master01   Ready      master   13d   v1.14.0
master02   Ready      master   13d   v1.14.0
master03   Ready      master   13d   v1.14.0
node01     Ready      <none>   13d   v1.14.0
node02     Ready      <none>   13d   v1.14.0
node03     Ready      <none>   13d   v1.14.0

目录结构
# cd efk/
# tree
.
├── es
│   ├── es-statefulset.yaml
│   ├── pvc.yaml
│   ├── pv.yaml
│   ├── rbac.yaml
│   └── service.yaml
├── filebeate
│   ├── config.yaml
│   ├── daemonset.yaml
│   ├── filebeat.tgz
│   └── rbac.yaml
└── kibana
    ├── deployment.yaml
    └── service.yaml

创建 elasticsearch
# cd /root/efk/es

创建 es pv
$ cat pv.yaml 
apiVersion: v1
kind: PersistentVolume
metadata:
  name: "es-pv"
  labels:
    name: "es-pv"
spec:
  capacity: 
    storage: 3Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Recycle
  hostPath:
    path: /es  #一定要是777 的权限，否则创建pod 的时候会报错


# 生成配置文件
kubectl create -f pv.yaml 

创建es pvc
$ cat pvc.yaml 
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: "es-pvc"
  namespace: kube-system
  labels:
    name: "es-pvc"
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 3Gi
  selector:
    matchLabels:
      name: es-pv


# 生成配置文件
kubectl create -f  pvc.yaml 

创建 es rbac认证
$ cat rbac.yaml 
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: elasticsearch-logging
  labels:
    k8s-app: elasticsearch-logging
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile
rules:
- apiGroups:
  - ""
  resources:
  - "services"
  - "namespaces"
  - "endpoints"
  verbs:
  - "get"
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: elasticsearch-logging
  namespace: kube-system
  labels:
    kubernetes.io/cluster-service: "true"
    addomanager.kubernetes.io/mode: Reconcile
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  namespace: kube-system
  name: elasticsearch-logging
  labels:
    k8s-app: elasticsearch-logging
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile
subjects:
- kind: ServiceAccount
  name: elasticsearch-logging
  namespace: kube-system
  apiGroup: ""
roleRef:
  kind:  ClusterRole
  name:  elasticsearch-logging
  apiGroup: ""


# 生成配置文件
kubectl create -f  rbac.yaml 

创建 es pod相关StatefulSet
$ cat es-statefulset.yaml 
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: elasticsearch-logging
  namespace: kube-system
  labels:
    k8s-app: elasticsearch-logging
    version: v6.3.0
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile
spec:
  serviceName: elasticsearch-logging
  replicas: 1
  selector:
    matchLabels:
      k8s-app: elasticsearch-logging
      version: v6.3.0
  template:
    metadata:
      labels:
        k8s-app: elasticsearch-logging
        version: v6.3.0
        kubernetes.io/cluster-service: "true"
    spec:
      serviceAccountName: elasticsearch-logging
      containers:
      - image: docker.io/elasticsearch:6.6.1
        name: elasticsearch-logging
        resources:
          limits:
            cpu: 1000m
          requests:
            cpu: 100m
        ports:
        - containerPort: 9200
          name: db
          protocol: TCP
        - containerPort: 9300
          name: transport
          protocol: TCP
        volumeMounts:
        - name: elasticsearch-logging
          mountPath: /usr/share/elasticsearch/data
        env:
        - name: "NAMESPACE"
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
      volumes:
      - name: elasticsearch-logging
        persistentVolumeClaim:
          claimName: es-pvc
      initContainers:
      - image: alpine:3.7
        command: ["/sbin/sysctl", "-w", "vm.max_map_count=262144"]
        name: elasticsearch-logging-init
        securityContext:
          privileged: true


# 生成配置文件
kubectl create -f  es-statefulset.yaml 

创建 es pod service
$ cat service.yaml 
apiVersion: v1
kind: Service
metadata: 
  name: elasticsearch-logging
  namespace: kube-system
  labels:
    k8s-app: elasticsearch-logging
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile
    kubernetes.io/name: "Elasticsearch"
spec:
  ports:
  - port: 9200
    protocol: TCP
    targetPort: db
  selector:
    k8s-app: elasticsearch-logging
# 生成配置文件
kubectl create -f  service.yaml

创建filebeate
# cd /root/efk/filebeate

创建 filebeate rbac认证
$ cat rbac.yaml 
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
  name: filebeat
  labels:
    k8s-app: filebeat
rules:
- apiGroups: [""] 
  resources:
  - namespaces
  - pods
  verbs:
  - get
  - watch
  - list

---
apiVersion: v1
kind: ServiceAccount
metadata: 
  name: filebeat
  namespace: kube-system
  labels:
    k8s-app: filebeat
---

apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata: 
  name: filebeat
subjects:
- kind: ServiceAccount
  name: filebeat
  namespace: kube-system
roleRef:
  kind: ClusterRole
  name: filebeat
  apiGroup: rbac.authorization.k8s.io


# 生成配置文件
kubectl create -f  rbac.yaml

创建 filebeate configmap (包括filebeate 配置文件 以及抓取容器日志所需的配置文件)
$ cat config.yaml 
apiVersion: v1
kind: ConfigMap
metadata:
  name: filebeat-config
  namespace: kube-system
  labels:
    k8s-app: filebeat
    kubernetes.io/cluster-service: "true"
data:
  filebeat.yml: |-
    filebeat.config:
      prospectors:
        path: /usr/share/filebeat/prospectors.d/*.yml
        reload.enabled: false
      modules:
        path: ${path.config}/modules.d/*.yml
        reload.enabled: false
    processors:
      - add_cloud_metadata:
    cloud.id: ${ELASTIC_CLOUD_ID}
    cloud.auth: ${ELASTIC_CLOUD_AUTH}
    output.elasticsearch:
      hosts: ['${ELASTICSEARCH_HOST:elasticsearch}:${ELASTICSEARCH_PORT:9200}']


---
apiVersion: v1
kind: ConfigMap
metadata:
  name: filebeat-prospectors
  namespace: kube-system
  labels:
    k8s-app: filebeat
    kubernetes.io/cluster-service: "true"
data:
  kubernetes.yml: |-
    - type: log
      enabled: true
      symlinks: true
      paths:
        - /var/log/containers/*.log
      exclude_files: ["calico","firewall","filebeat","kube-proxy"]
      processors:
        - add_kubernetes_metadata:
            in_cluster: true


# 生成配置文件
kubectl create -f  config.yaml

创建 filebeate pod 相关 DaemonSet 控制器
$ cat daemonset.yaml 
apiVersion: extensions/v1beta1
kind: DaemonSet
metadata:
  name: filebeat
  namespace: kube-system
  labels:
    k8s-app: filebeat
    kubernetes.io/cluster-service: "true"
spec:
  template:
    metadata:
      labels:
        k8s-app: filebeat
        kubernetes.io/cluster-service: "true"
    spec:
      serviceAccountName: filebeat
      terminationGracePeriodSeconds: 30
      containers:
      - name: filebeat
        image: prima/filebeat:6.4.2
        args: [
          "-c","/etc/filebeat.yml",
          "-e",
        ]
        env:
        - name: ELASTICSEARCH_HOST
          value: elasticsearch-logging
        - name: ELASTICSEARCH_USERNAME
          value:
        - name: ELASTICSEARCH_PASSWORD
          value:
        - name: ELASTIC_CLOUD_ID
          value:
        - name: ELASTIC_CLOUD_AUTH
          value:
        securityContext:
          runAsUser: 0
        resources:
          limits:
            memory: 200Mi
          requests:
            cpu: 100m
            memory: 100Mi
        volumeMounts:
        - name: config    #filebeat 配置文件
          mountPath: /etc/filebeat.yml
          readOnly: true
          subPath: filebeat.yml
        - name: prospectors #k8s 宿主机运行相关日志文件
          mountPath: /usr/share/filebeat/prospectors.d 
          readOnly: true
        - name: data #filebeat pod 存放数据的目录 
          mountPath: /usr/share/filebeat/data
        - name: varlog   #存放宿主机上 /var/log 的日志
          mountPath: /var/log
          readOnly: true
        - name: varlibdockercontainers #存放宿主机上 关于k8s 相关json文件
          mountPath: /var/lib/docker/containers
          readOnly: true
      volumes:
      - name: config
        configMap:
          defaultMode: 0600
          name: filebeat-config
      - name: varlog
        hostPath:
          path: /var/log/
      - name: varlibdockercontainers
        hostPath:
          path: /var/lib/docker/containers/
      - name: prospectors
        configMap:
          defaultMode: 0600
          name: filebeat-prospectors
      - name: data
        hostPath:
          path: /var/lib/filebeat-data
          type: DirectoryOrCreate   # 宿主机上不存在创建此目录

# 生成配置文件
kubectl create -f  daemonset.yaml 

创建 kibana
# cd /root/efk/kibana

创建 kibana pod 相关deployment控制器
$ cat deployment.yaml 
apiVersion: apps/v1
kind: Deployment
metadata: 
  name: kibana-logging
  namespace: kube-system
  labels:
    k8s-app: kibana-logging
    kubernetes.io/cluster-serivce: "true"
    addonmanager.kubernetes.io/mode: Reconcile
spec:
  replicas: 1
  selector:
    matchLabels:
      k8s-app: kibana-logging
  template:
    metadata:
      labels:
        k8s-app: kibana-logging
      annotations:
        seccomp.security.alpha.kubernetes.io/pod: 'docker/default'
    spec:
      containers:
      - name: kibana-logging
        image: kibana:6.6.1
        resources:
          limits:
            cpu: 1000m
          requests:
            cpu: 100m
        env:
          - name: ELASTICSEARCH_URL
            value: http://elasticsearch-logging:9200
        ports:
        - containerPort: 5601
          name: ui
          protocol: TCP
# 生成配置文件
kubectl create -f  deployment.yaml 

创建 kibana pod service
$ cat service.yaml 
apiVersion: v1
kind: Service
metadata:
  name: kibana-logging
  namespace: kube-system
  labels:
    k8s-app: kibana-logging
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile
    kubernetes.io/name: "Kibana"
spec:
  type: NodePort
  ports:
  - port: 5601
    protocol: TCP
    targetPort: ui
    nodePort: 30003
  selector:
    k8s-app: kibana-logging


# 生成配置文件
kubectl create -f  service.yaml 

查看 pod service
$ kubectl get svc -n kube-system
NAME                    TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)                  AGE
elasticsearch-logging   ClusterIP   10.101.1.2       <none>        9200/TCP                 22h
kibana-logging          NodePort    10.101.121.228   <none>        5601:30003/TCP           21h    #30003为kibana 端口
kube-dns                ClusterIP   10.96.0.10       <none>        53/UDP,53/TCP,9153/TCP   20d
kubernetes-dashboard    NodePort    10.110.209.252   <none>        443:31021/TCP            20d
traefik-web-ui          ClusterIP   10.102.131.255   <none>        80/TCP                   19d

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