kibana&elasticsearch not connect under docker in same container - docker

Question

Using the docker-compose.yml file by here
(online changed version 7.9.1. to 7.9.2)
as seen below full content of docker-compose.yml;
version: '2.2'
services:
es01:
image: docker.elastic.co/elasticsearch/elasticsearch:7.9.2
container_name: es01
environment:
- node.name=es01
- cluster.name=es-docker-cluster
- discovery.seed_hosts=es02,es03
- cluster.initial_master_nodes=es01,es02,es03
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- data01:/usr/share/elasticsearch/data
ports:
- 9200:9200
networks:
- elastic
es02:
image: docker.elastic.co/elasticsearch/elasticsearch:7.9.2
container_name: es02
environment:
- node.name=es02
- cluster.name=es-docker-cluster
- discovery.seed_hosts=es01,es03
- cluster.initial_master_nodes=es01,es02,es03
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- data02:/usr/share/elasticsearch/data
ports:
- 9201:9201
networks:
- elastic
es03:
image: docker.elastic.co/elasticsearch/elasticsearch:7.9.2
container_name: es03
environment:
- node.name=es03
- cluster.name=es-docker-cluster
- discovery.seed_hosts=es01,es02
- cluster.initial_master_nodes=es01,es02,es03
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- data03:/usr/share/elasticsearch/data
ports:
- 9202:9202
networks:
- elastic
kib01:
image: docker.elastic.co/kibana/kibana:7.9.2
container_name: kib01
ports:
- 5601:5601
environment:
ELASTICSEARCH_URL: http://es01:9200
ELASTICSEARCH_HOSTS: http://es01:9200
networks:
- elastic
volumes:
data01:
driver: local
data02:
driver: local
data03:
driver: local
networks:
elastic:
driver: bridge
when run docker-compose up here the logs in command window;

Answer 1

It seems that both containers are started at same time so kibana is unable to identify elasticsearch container.
in Kibana service: Add below parameters in docker-compose.yml file
depends_on:
es01
environment:
'ELASTICSEARCH_HOSTS=http://es01:9200'
'XPACK_MONITORING_UI_CONTAINER_ELASTICSEARCH.ENABLED=false'
Instead of dict. try to use lists in env. variable