1、搭建K8S集群

参考以前的文章

2、安装GlusterFS

参考以前的文章

3、搭建ES+Kibana

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crictl pull docker.elastic.co/elasticsearch/elasticsearch:7.17.2
crictl pull docker.elastic.co/kibana/kibana:7.17.2
crictl pull docker.elastic.co/logstash/logstash:7.17.2
crictl pull docker.elastic.co/beats/filebeat:7.17.2

# es配置
cluster.name: my-es
node.name: "node-1"
path.data: /usr/share/elasticsearch/data
#path.logs: /var/log/elasticsearch
bootstrap.memory_lock: false
network.host: 0.0.0.0
http.port: 9200
#集群个节点IP地址，也可以使用els、els.shuaiguoxia.com等名称，需要各节点能够解析
#discovery.zen.ping.unicast.hosts: ["172.16.30.11", "172.17.77.12"]
#discovery.zen.minimum_master_nodes: 2
discovery.seed_hosts: ["127.0.0.1", "[::1]"]
cluster.initial_master_nodes: ["node-1"]
#增加参数，使head插件可以访问es
http.cors.enabled: true
http.cors.allow-origin: "*"
http.cors.allow-headers: Authorization,X-Requested-With,Content-Length,Content-Type

# kibana 配置
server.port: 5601
server.host: "0.0.0.0"
elasticsearch.hosts: "http://es-kibana-0.es-kibana.kube-system:9200"
kibana.index: ".kibana"

# 配置configMap
kubectl create configmap es-config -n kube-system --from-file=elasticsearch.yml
kubectl create configmap kibana-config -n kube-system --from-file=kibana.yml

# 创建endpoint
apiVersion: v1
kind: Endpoints
metadata:
  name: glusterfs-es
  namespace: kube-system
subsets:
- addresses:
  - ip: 192.168.56.102
  ports:
  - port: 49155
- addresses:
  - ip: 192.168.56.103
  ports:
  - port: 49155
- addresses:
  - ip: 192.168.56.104
  ports:
  - port: 49155

# 创建SVC
apiVersion: v1
kind: Service
metadata:
  name: glusterfs-es
  namespace: kube-system
spec:
  ports:
  - port: 49155


# 创建
kubectl apply -f es-endpoints.yaml
kubectl apply -f es-glusterfs-svc.yaml

#配置 es的pv和pvc
apiVersion: v1
kind: PersistentVolume
metadata:
  name: es-pv
  namespace: kube-system
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteMany
  glusterfs:
    endpoints: "glusterfs-es"
    path: "es-volume"
    readOnly: false
 
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: es-pv-claim
  namespace: kube-system
  labels:
    app: es
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 5Gi

kubectl apply -f es-pv.yaml
kubectl apply -f es-pvc.yaml
 
# 创建es-kibana的stateful-set
apiVersion: apps/v1
kind: StatefulSet
metadata:
  labels:
    app: es-kibana
  name: es-kibana
  namespace: kube-system
spec:
  replicas: 1
  selector:
    matchLabels:
      app: es-kibana
  serviceName: "es-kibana"
  template:
    metadata:
      labels:
        app: es-kibana
    spec:
      initContainers:
      - name: set-vm-max-map-count
        image: busybox
        imagePullPolicy: IfNotPresent
        command: ["/bin/sh"]
        args: ["-c", "sysctl -w vm.max_map_count=262144;"]
        securityContext:
          privileged: true
      containers:
      - image: elasticsearch:7.17.2
        imagePullPolicy: IfNotPresent
        lifecycle:
          postStart:
            exec:
              command: [ "/bin/bash", "-c", "chown -R elasticsearch:elasticsearch /usr/share/elasticsearch/data;" ]
        name: elasticsearch
        resources:
          requests:
            memory: "800Mi"
            cpu: "800m"
          limits:
            memory: "1Gi"
            cpu: "1000m"
        ports:
        - containerPort: 9200
        - containerPort: 9300
        volumeMounts:
        - name: es-config
          mountPath: /usr/share/elasticsearch/config/elasticsearch.yml
          subPath: elasticsearch.yml
        - name: es-persistent-storage
          mountPath: /usr/share/elasticsearch/data
        env:
        - name: TZ
          value: Asia/Shanghai
      - image: kibana:7.17.2
        imagePullPolicy: IfNotPresent
        #command: [ "/bin/bash", "-ce", "tail -f /dev/null" ]
        name: kibana
        env:
        - name: TZ
          value: Asia/Shanghai
        volumeMounts:
        - name: kibana-config
          mountPath: /usr/share/kibana/config/kibana.yml
          subPath: kibana.yml
      volumes:
      - name: es-config
        configMap:
          name: es-config
      - name: kibana-config
        configMap:
          name: kibana-config
      - name: es-persistent-storage
        persistentVolumeClaim:
          claimName: es-pv-claim      #hostNetwork: true
      #dnsPolicy: ClusterFirstWithHostNet
      # nodeSelector:
      #            kubernetes.io/hostname: 172.16.30.1
 
kubectl apply -f es-statefulset.yaml
kubectl get pod -o wide -n kube-system|grep es

# 创建es的clusterIp svc
apiVersion: v1
kind: Service
metadata:
  labels:
    app: es-kibana
  name: es-kibana
  namespace: kube-system
spec:
  ports:
  - name: es9200
    port: 9200
    protocol: TCP
    targetPort: 9200
  - name: es9300
    port: 9300
    protocol: TCP
    targetPort: 9300
  clusterIP: None
  selector:
    app: es-kibana
  type: ClusterIP
  
kubectl apply -f es-cluster-none-svc.yaml

# 创建nodeport svc
apiVersion: v1
kind: Service
metadata:
  labels:
    app: es-kibana
  name: es-kibana-nodeport-svc
  namespace: kube-system
spec:
  ports:
  - name: 9200-9200
    port: 9200
    protocol: TCP
    targetPort: 9200
    #nodePort: 9200
  - name: 5601-5601
    port: 5601
    protocol: TCP
    targetPort: 5601
    nodePort: 31111
  selector:
    app: es-kibana
  type: NodePort
kubectl apply -f es-nodeport-svc.yaml

4、搭建Logstash

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# logstash.yml
http.host: "0.0.0.0"
xpack.monitoring.elasticsearch.hosts: http://es-kibana-0.es-kibana.kube-system:9200

# logstash.conf
input {
  beats {
     port => 5044
     client_inactivity_timeout => 36000
  }
}

filter {
 #需要配置否则host是一个json不是文本则无法输出至elasticsearch
  mutate {
    rename => { "[host][name]" => "host" }
  }
}
 
output {
    elasticsearch {
        hosts => ["http://es-kibana-0.es-kibana.kube-system:9200"]
        index => "k8s-system-log-%{+YYYY.MM.dd}"
    }
    stdout{
      codec => rubydebug
    }
}
kubectl create configmap logstash-yml-config -n kube-system  --from-file=logstash.yml
kubectl create configmap logstash-config -n kube-system  --from-file=logstash.conf

# logstash-statefulset.yaml
apiVersion: apps/v1
kind: StatefulSet
metadata:
  labels:
    app: logstash
  name: logstash
  namespace: kube-system
spec:
  serviceName: "logstash"
  replicas: 1
  selector:
    matchLabels:
      app: logstash
  template:
    metadata:
      labels:
        app: logstash
    spec:
      containers:
      - image: logstash:7.17.2
        name: logstash
        resources:
          requests:
            memory: "500Mi"
            cpu: "400m"
          limits:
            memory: "800Mi"
            cpu: "800m"
        volumeMounts:
        - name: logstash-yml-config
          mountPath: /usr/share/logstash/config/logstash.yml
          subPath: logstash.yml
        - name: logstash-config
          mountPath: /usr/share/logstash/pipeline/logstash.conf
          subPath: logstash.conf
        env:
        - name: TZ
          value: Asia/Shanghai
      volumes:
      - name: logstash-yml-config
        configMap:
          name: logstash-yml-config
      - name: logstash-config
        configMap:
          name: logstash-config
      #nodeSelector:
      # kubernetes.io/hostname: 172.16.30.1
      
# logstash-none-svc.yaml
apiVersion: v1
kind: Service
metadata:
  labels:
    app: logstash
  name: logstash
  namespace: kube-system
spec:
  ports:
  - name: logstsh
    port: 5044
    protocol: TCP
    targetPort: 9600
  clusterIP: None
  selector:
    app: logstash
  type: ClusterIP

kubectl apply -f logstash-none-svc.yaml

5、创建Filebeat服务

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# filebeat.yml
filebeat.inputs:
- type: log
  enabled: true
  paths:
    - /messages
  fields:
    app: k8s
    type: module
filebeat.config.modules:
  path: ${path.config}/modules.d/*.yml
  reload.enabled: false
setup.template.settings:
  index.number_of_shards: 3
setup.kibana:
output.logstash:
  hosts: ["logstash-0.logstash.kube-system:5044"]
processors:
  - add_host_metadata:
  - add_cloud_metadata:
  
kubectl create configmap filebeat-config -n kube-system --from-file=filebeat.yml  



# filebeat-daemonset.yaml
apiVersion: apps/v1
kind: DaemonSet
metadata:
  labels:
    app: filebeat
  name: filebeat
  namespace: kube-system
spec:
  selector:
    matchLabels:
      app: filebeat
  template:
    metadata:
      labels:
        app: filebeat
    spec:
      imagePullSecrets:
      - name: registry-pull-secret
      containers:
      - image: elastic/filebeat:7.17.2
        name: filebeat
        volumeMounts:
        - name: filebeat-config
          mountPath: /etc/filebeat.yml
          subPath: filebeat.yml
        - name: k8s-system-logs
          mountPath: /messages
        args: [
          "-c", "/etc/filebeat.yml",
          "-e",
        ]
        resources:
          requests:
            cpu: 100m
            memory: 100Mi
          limits:
            cpu: 500m
            memory: 500Mi
        securityContext:
          runAsUser: 0
        env:
        - name: TZ
          value: "CST-8"
      volumes:
      - name: filebeat-config
        configMap:
          name: filebeat-config
      - name: k8s-system-logs
        hostPath:
          path: /var/log/messages
          type: File
          
 kubectl apply -f filebeat-daemonset.yaml

参考博客:
https://blog.csdn.net/Soft_Engneer/article/details/124553616