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Reach service by service name instead of service IP in swarm mode

Open Source Projects Swarm
#1

Hello
I am trying to to create a swarm cluster with several aws EC2 instance. I use logstash and filebeats for parsing log files. I have next configuration of docker-compose:

logstash:
image: docker.elastic.co/logstash/logstash:$ELK_VERSION
deploy:
  replicas: 1
  placement:
    constraints:
    - 'node.role == manager'
container_name: logstash
volumes:
- ./logstash/config/logstash.yml:/usr/share/logstash/config/logstash.yml
- ./logstash/pipeline:/usr/share/logstash/pipeline
- ./load:/load
ports:
- "5044:5044"
- "9600:9600"
environment:
  LS_JAVA_OPTS: "-Xmx256m -Xms256m"
depends_on:
- elasticsearch

filebeat_master:
image: docker.elastic.co/beats/filebeat:6.7.0
command: filebeat -e -strict.perms=false
deploy:
  mode: replicated
  replicas: 1
  placement:
    constraints:
    - 'node.role == manager'
volumes:
- "./filebeat/config/filebeat_master.yml:/usr/share/filebeat/filebeat.yml:ro"
- ./load:/load
- /var/run/docker.sock:/var/run/docker.sock
restart: "no"
links:
  - "logstash:logstash"
depends_on:
- logstash
- elasticsearch
- kibana

  filebeat_slave:
  image: docker.elastic.co/beats/filebeat:6.7.0
  command: filebeat -e -strict.perms=false
  deploy:
    mode: replicated
    replicas: 1
    placement:
      constraints:
      - 'node.role != manager'
  volumes:
  - "./filebeat/config/filebeat_slave.yml:/usr/share/filebeat/filebeat.yml:ro"
  - /var/run/docker.sock:/var/run/docker.sock      - ./load:/load

config of filebeat_master:

  filebeat:
  prospectors:
    -
      paths:
        - /load/*.log
      input_type: log
 output:
  logstash:
    hosts: ["logstash:5044"]

config of filebeat_slave:

  filebeat:
  prospectors:
    -
      paths:
        - /load/*.log
      input_type: log
output:
  logstash:
    hosts: ["<EC2_MASTER_EXTERNAL_IP>:5044"]

The question is:
can I somehow reach logstash by servicename on swarm slave node not using EC2_MASTER_EXTERNAL_IP? (If I use it in current setup - i get errors )

Any help appreciated
thank in advance

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