Deploy Elastic Search With Docker

System Requirements

• 2+ GB RAM

Related Posts

• Deploy Kibana Using Docker

Steps

Run the following command to deploy a basic elastic search server.

docker run \
  -p 9200:9200 \
  -p 9300:9300 \
  -v ./elastic-search-data:/usr/share/elasticsearch/data \
  -e "discovery.type=single-node" \
  elasticsearch:7.9.0

If you want to use docker-compose, then create a docker-compose.yml file with the following content

version: "3"

services:
  elasticsearch:
    container_name: elasticsearch
    image: elasticsearch:7.9.0
    restart: always
    ports:
      - 9200:9200
      - 9300:9300
    volumes:
      - elastic-search-data:/usr/share/elasticsearch/data
    environment:
      discovery.type: single-node

volumes:
  elastic-search-data:
    driver: local

... then run

docker-compose up

Testing

Elasitc Search is just a RESTful JSON API so you can perform GET requests just by using your browser. E.g. go to your server's hostname or ip address with port 9200 in your URL. e.g.

http://elastic-search.mydomain.com:9200

Or you can send a cURL request from the CLI like so:

curl $HOSTNAME_OR_IP:9200

You should get a message similar to:

{
  "name" : "7b61c1d190c2",
  "cluster_name" : "docker-cluster",
  "cluster_uuid" : "Nf1r4mXbSZmmM8JD0xPu0A",
  "version" : {
    "number" : "7.9.0",
    "build_flavor" : "default",
    "build_type" : "docker",
    "build_hash" : "a479a2a7fce0389512d6a9361301708b92dff667",
    "build_date" : "2020-08-11T21:36:48.204330Z",
    "build_snapshot" : false,
    "lucene_version" : "8.6.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}

Someone has kindly put together a list of CLI cURL commands which you may find useful.

Security

With this setup, your elastic search server is open to the world for anyone to post logs or retrieve information from, so I recommend you put it behind a firewall of some sort.

Alternatively, implement user authentication. You may find it quickest to implement "native" authentication.

References

• Install Elasticsearch with Docker