Docker Kibana: Cannot connect to the Elasticsearch cluster currently configured for Kibana

[Philip_Colmer]

I'm using the Docker image for Kibana 7.2.0. I'm trying to connect it to an Elasticsearch Docker container as part of the following docker-compose file:

version: "3"
services:
  fess:
    image: codelibs/fess:13.2
    restart: always
    ports:
      - "8080:8080"
    depends_on:
      - elasticsearch
    environment:
      - RUN_ELASTICSEARCH=false
      - "ES_HTTP_URL=http://elasticsearch:9200"
    volumes:
      - /srv/data/fess/config:/opt/fess
    networks:
      - esnet

  elasticsearch:
    image: codelibs/fess:13.2
    restart: always
    environment:
      - RUN_FESS=false
      - "ES_JAVA_OPTS=\"-Xms2g -Xmx2g\""
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - /srv/data/es/data:/var/lib/elasticsearch
    networks:
      - esnet

  kibana:
    image: docker.elastic.co/kibana/kibana:7.2.0
    restart: always
    ports:
      - "5601:5601"
    depends_on:
      - elasticsearch
    networks:
      - esnet

volumes:
  esdata:
    driver: local

networks:
  esnet:
    driver: bridge

The fess Docker image provides Elasticsearch 7.2.0 and this is confirmed if I enter the Kibana running container and curl the ES server:

bash-4.2$ curl http://elasticsearch:9200
{
  "name" : "9d15b486fb67",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "uJmUqL4ZR7-l2X7zG92Cbw",
  "version" : {
    "number" : "7.2.0",
    "build_flavor" : "oss",
    "build_type" : "deb",
    "build_hash" : "508c38a",
    "build_date" : "2019-06-20T15:54:18.811730Z",
    "build_snapshot" : false,
    "lucene_version" : "8.0.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}

However, when I try to browse to the Kibana server on port 5601, I get this message:

The kibana.yml file is:

#
# ** THIS IS AN AUTO-GENERATED FILE **
#

# Default Kibana configuration for docker target
server.name: kibana
server.host: "0"
elasticsearch.hosts: [ "http://elasticsearch:9200" ]
xpack.monitoring.ui.container.elasticsearch.enabled: true

Any suggestions as to what I need to do in order to get Kibana successfully connecting to ES?

Thanks.

[Marius_Dragomir]

As far as I remember you also need to connect(or link for the legacy term) both docker containers to the same network for it to work.

[Philip_Colmer]

Thank you. The author of the docker-compose file I was using has updated it to get Kibana working correctly with ES.