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elasticsearchHow can I use Docker Compose to configure and deploy an Elasticsearch cluster?

Docker Compose can be used to configure and deploy an Elasticsearch cluster. Here's an example of how to do this:

version: '3.2'

    image: docker.elastic.co/elasticsearch/elasticsearch:7.7.0
      - cluster.name=docker-cluster
      - discovery.type=single-node
      - 9200:9200

This example creates a docker-cluster cluster with a single node. This is done by setting the environment variable cluster.name to docker-cluster and the environment variable discovery.type to single-node. The image directive is used to specify the version of Elasticsearch to be used (in this case, 7.7.0). Finally, the ports directive is used to map the host's port 9200 to the container's port 9200.

Once the configuration is in place, the cluster can be deployed using the docker-compose command:

$ docker-compose up

This command will start the Elasticsearch cluster.

Parts of the example code:

  • version: specifies the version of the Docker Compose file format
  • services: defines the services to be deployed
  • image: specifies the version of Elasticsearch to be used
  • environment: defines the environment variables to set
  • ports: maps host ports to container ports

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