Introduction
This post is about hosting ElasticSearch cluster on dockerised environment. We are also running Kibana configured on running ElasticSearch cluster.
Steps to create ElasticSearch cluster using Docker
Create docker compose file: docker-compose.yml
version: '2.2'
services:
es01:
image: docker.elastic.co/elasticsearch/elasticsearch:7.3.1
container_name: es01
environment:
- node.name=es01
- discovery.seed_hosts=es02
- cluster.initial_master_nodes=es01,es02
- cluster.name=docker-cluster
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- esdata01:/usr/share/elasticsearch/data
ports:
- 9200:9200
networks:
- esnet
es02:
image: docker.elastic.co/elasticsearch/elasticsearch:7.3.1
container_name: es02
environment:
- node.name=es02
- discovery.seed_hosts=es01
- cluster.initial_master_nodes=es01,es02
- cluster.name=docker-cluster
- bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
ulimits:
memlock:
soft: -1
hard: -1
volumes:
- esdata02:/usr/share/elasticsearch/data
networks:
- esnet
kibana:
image: docker.elastic.co/kibana/kibana:7.3.1
container_name: kibana
environment:
SERVER_NAME: kibana.local
ELASTICSEARCH_HOSTS: http://es01:9200
ports:
- 5601:5601
networks:
- esnet
volumes:
esdata01:
driver: local
esdata02:
driver: local
networks:
esnet:Run docker-compose
docker-compose up -dAccess Kibana
<host>:5601For first few seconds, you might see message: Kibana is not ready yet Try refreshing after some time. It will open up Kibana for you.
Special Notes
You might need to do following configuration, if your container died after few seconds (see the logs of your container):
In file: /etc/sysctl.conf
Append in end:
vm.max_map_count=262144Check health of ElasticSearch and Kibana
For ElasticSearch:
curl http://127.0.0.1:9200/_cat/health
Output will be look like:
1567757045 08:04:05 docker-cluster green 2 2 10 5 0 0 0 0 - 100.0%For Kibana:
Either open in browser:
<hostname>:5601/status
Or, via api:
curl http://127.0.0.1:5601/api/status 
