Docker Compose ve Elasticsearch

Giriş

Elastic Search UI için açıklama şöyle

Install this free browser plugin Elasticvue for the access to Elasticsearch with UI. The plugin connects to http://localhost:9200 by default. Otherwise, you will need to configure the connection.

Uygulamamızın log4j2.xml dosyasında şöyle yaparız

<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
  <Properties>
    <Property name="defaultPattern">[%highlight{%-5level}] %d{DEFAULT} %c{1}.%M() 
      - %msg%n%throwable{short.lineNumber}</Property>
  </Properties>
  <Appenders>
    <Socket name="socket" host="${sys:logstash.host.name:-localhost}" 
      port="${sys:logstash.port.number:-9999}" reconnectionDelayMillis="5000">
      <PatternLayout pattern="${defaultPattern}" />
    </Socket>
  </Appenders>
  <Loggers>
    <Root level="info">
      <AppenderRef ref="rollingFile"/>
    </Root>
  </Loggers>
</Configuration>
log4j2.xml

Örnek

Şöyle yaparız

elasticsearch:
    image: elasticsearch:8.7.1
    ports:
      - "9200:9200"
      - "9300:9300"
    environment:
      discovery.type: single-node
      xpack.security.enabled: false
      ES_JAVA_OPTS: "-Xms1g -Xmx1g"

Örnek - elasticsearch kubernetes

PersistentVolumeClaim için şöyle yaparız

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: elastic-pvc
  namespace: default
  labels:
    app: elastic-pvc
spec:
  storageClassName: nfs-client
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 20Gi

Şöyle yaparız

apiVersion: apps/v1
kind: Deployment
metadata:
  name: elastic
  namespace: default
  labels:
    app: elastic
spec:
  selector:
    matchLabels:
      app: elastic
  replicas: 1
  template:
    metadata:
      labels:
        app: elastic
    spec:
      containers:
      - name: elastic
        image: docker.elastic.co/elasticsearch/elasticsearch:7.5.2
        imagePullPolicy: IfNotPresent
        resources:
          requests:
            cpu: 1000m
            memory: 1024Mi
          limits:
            cpu: 1000m
            memory: 2048Mi
        env:
        - name: discovery.type
          value: "single-node"
        ports:
        - containerPort: 9200
          name: elastic-port
        - containerPort: 9300
          name: elastic-intra
        volumeMounts:
        - name: elastic-data
          mountPath: /usr/share/elasticsearch/data
      volumes:
        - name: elastic-data
          persistentVolumeClaim:
            claimName: elastic-pvc 
      restartPolicy: Always

service için şöyle yaparız

apiVersion: v1
kind: Service
metadata:
  name: elastic-svc
  namespace: default
spec:
  selector:
    app: elastic
  clusterIP: None
  ports:
  - port: 9200
    name: rest
  - port: 9300
    name: intra

Örnek - elasticsearch + logstash + kibana

Şöyle yaparız

version: '3'

services:
  elasticsearch:
    image: elasticsearch:7.10.1
    container_name: elasticsearch
    volumes:
      - ./volumes/es/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml
    ports:
      - "9200:9200"
      - "9300:9300"
    environment:
      ES_JAVA_OPTS: "-Xmx256m -Xms256m"
  logstash:
    image: logstash:7.10.1
    container_name: logstash
    command: -f /etc/logstash/conf.d/
    volumes:
      - ./volumes/logstash/:/etc/logstash/conf.d/
    ports:
      - "9999:9999"
    environment:
      LS_JAVA_OPTS: "-Xmx256m -Xms256m"
    depends_on:
      - elasticsearch
  kibana:
    image: kibana:7.10.1
    container_name: kibana
    volumes:
      - ./volumes/kibana/:/usr/share/kibana/config/
    ports:
      - "5601:5601"
    depends_on:
      - elasticsearch

Örnek

Şöyle yaparız. Burada filebeat sonradan kurulduğu için yok

version: '2.2'

services:

  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.9.2
    container_name: elasticsearch
    environment:
      - node.name=elasticsearch
      - discovery.seed_hosts=elasticsearch
      - cluster.initial_master_nodes=elasticsearch
      - cluster.name=docker-cluster
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - esdata1:/usr/share/elasticsearch/data
    ports:
      - 9200:9200

  kibana:
    image: docker.elastic.co/kibana/kibana:7.9.2
    container_name: kibana
    environment:
      ELASTICSEARCH_URL: "http://elasticsearch:9200"
    ports:
      - 5601:5601
    depends_on:
      - elasticsearch

volumes:
  esdata1:
    driver: local