Helm部署Filebeat + ELK

1) 多个Filebeat在各个Node进行日志采集，然后上传至Logstash
2) 多个Logstash节点并行（负载均衡，不作为集群），对日志记录进行过滤处理，然后上传至Elasticsearch集群
3) 多个Elasticsearch构成集群服务，提供日志的索引和存储能力
4) Kibana负责对Elasticsearch中的日志数据进行检索、分析

kubectl create ns logs

helm repo add elastic https://helm.elastic.co

helm install -name elasticsearch elastic/elasticsearch --namespace logs

image: "docker.elastic.co/elasticsearch/elasticsearch"
imageTag: "7.2.0"
imagePullPolicy: "IfNotPresent"
podAnnotations: {}
esJavaOpts: "-Xmx1g -Xms1g"
resources:
  requests:
    cpu: "100m"
    memory: "2Gi"
  limits:
    cpu: "1000m"
    memory: "2Gi"
volumeClaimTemplate:
  accessModes: [ "ReadWriteOnce" ]
  storageClassName: "nfs-client"
  resources:
    requests:
      storage: 50Gi

helm repo add elastic https://helm.elastic.co

helm install -name filebeat elastic/filebeat --namespace logs

image: "docker.elastic.co/beats/filebeat"
imageTag: "7.2.0"
imagePullPolicy: "IfNotPresent"
resources:
  requests:
    cpu: "100m"
    memory: "100Mi"
  limits:
    cpu: "1000m"
    memory: "200Mi"

- name: varlibdockercontainers
  hostPath:
    path: /var/lib/docker/containers   #改为docker安装路径

filebeatConfig:
  filebeat.yml: |
    filebeat.inputs:
    - type: docker
      containers.ids:
      - '*'
      multiline.pattern: '^[0-9]'
      multiline.negate: true
      multiline.match: after
      processors:
      - add_kubernetes_metadata:
          in_cluster: true
 
    output.elasticsearch:
      hosts: '${ELASTICSEARCH_HOSTS:elasticsearch-master:9200}'

helm repo add elastic https://helm.elastic.co

helm install -name kibana elastic/kibana --namespace logs

elasticsearchHosts: "http://elasticsearch-master:9200"
replicas: 1
image: "docker.elastic.co/kibana/kibana"
imageTag: "7.2.0"
imagePullPolicy: "IfNotPresent"
resources:
  requests:
    cpu: "100m"
    memory: "500m"
  limits:
    cpu: "1000m"
    memory: "1Gi"

$ helm install -name logstash stable/logstash --namespace logs

image:
  repository: docker.elastic.co/logstash/logstash-oss
  tag: 7.2.0
  pullPolicy: IfNotPresent
persistence:
  enabled: true
  storageClass: "nfs-client"
  accessMode: ReadWriteOnce
  size: 2Gi

filebeatConfig:
  filebeat.yml: |
    filebeat.autodiscover:
      providers:
        - type: kubernetes
          templates:
            - condition:
                equals:
                  kubernetes.labels.logFormat: "json"
              config:
                - type: docker
                  containers.ids:
                    - "${data.kubernetes.container.id}"
                  json.keys_under_root: true
                  json.overwrite_keys: true
                  json.add_error_key: true
            - config:
                - type: docker
                  containers.ids:
                    - "${data.kubernetes.container.id}"
                  processors:
                    - add_kubernetes_metadata:
                        in_cluster: true
    output.elasticsearch:
      hosts: '${ELASTICSEARCH_HOSTS:elasticsearch-master:9200}'

helm install -n elastalert ./elastalert --namespace logs