1. version: "3"
    2. services: 
    3.   elasticsearch-1:
    4.     image: elasticsearch
    5.     ports:
    6.       - "9200:9200"
    7.     restart: "always"
    8.     container_name: elasticsearch-1
    9.   kibana:
    10.     image: kibana
    11.     ports:
    12.       - "5601:5601"
    13.     restart: "always"
    14.     container_name: kibana
    15.     volumes:  
    16.       - ./elk/kibana.yml:/etc/kibana/kibana.yml
    17.     links:
    18.       - elasticsearch-1:es01
    19.   logstash:
    20.     image: logstash
    21.     restart: "always"
    22.     container_name: logstash
    23.     volumes:  
    24.       - ./elk/logstash.conf:/etc/logstash/conf.d/logstash.conf    
    25.       - ./elk/logstash.yml:/etc/logstash/logstash.yml   
    26.       - ./elk/tacs.log:/etc/logstash/tacs.log 
    27.     links:
    28.       - elasticsearch-1:es01