docker-compose.yml

version: '3'

services:

  kibana:
    image: docker.elastic.co/kibana/kibana:5.5.3
    environment:
      - NODE_OPTIONS=--max-old-space-size=8000
      - ELASTICSEARCH_URL=http://elasticsearch:9200
      - ELASTICSEARCH_HOSTS=http://elasticsearch:9200
    volumes:
      - ./config/kibana.yml:/usr/share/kibana/config/kibana.yml
    ports:
      - 5601:5601
    links:
      - elasticsearch

  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:5.5.3
    environment:
      - ES_JAVA_OPTS=-Xms750m -Xmx750m
    volumes:
      - ./config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml
      - esdata:/usr/share/elasticsearch/data
    ports:
      - 9200:9200
      - 9300:9300

  randomlog:
    image: ubuntu:18.04
    command: >-
      bash -c "
        rm /var/shared/randomlog.log;
        while true; do
          paste -d' ' -s <({
            date -uIseconds;
            shuf -n 1 -e ERROR DEBUG INFO INFO;
            find / -name *.conf | shuf -n 1;
            shuf -n 5 /usr/share/common-licenses/GPL-3;
          }) >> /var/shared/randomlog.log;
          sleep $${RANDOM:0:1};
        done
      "
    volumes:
      - ./shared:/var/shared

  logstash_randomlog:
      image: docker.elastic.co/logstash/logstash:5.5.3
      environment:
        - LS_JAVA_OPTS=-Xms750m -Xmx750m
        - ELASTICSEARCH_URL=http://elasticsearch:9200
        - ELASTICSEARCH_HOSTS=http://elasticsearch:9200
      volumes:
        - ./config/logstash.yml:/usr/share/logstash/config/logstash.yml
        - ./config/pipelines.yml:/usr/share/logstash/config/pipelines.yml
        - ./pipeline/randomlog.conf:/usr/share/logstash/pipeline/randomlog.conf
        - ./shared:/var/shared
      links:
        - elasticsearch
        - kibana
        - randomlog

volumes:
  esdata:
    driver: local