Local elasticsearch

Setup docker

   sudo apt-get install docker docker-compose

Add your user to the docker group to ease setup.

   sudo usermod -G docker -a $USER

Elasticsearch instance

We will be reusing existing docker container so no specific Dockerfile.

Edit a docker-compose.yml file with the following content:

   version: '3'
   services:
     elasticsearch:
       container_name: elasticsearch-6.2.2
       image: "docker.elastic.co/elasticsearch/elasticsearch:6.2.2"
       ports:
        - "9200:9200"
        - "9300:9300"
       environment:
         - discovery.type=single-node

Note: This is a single node instance but we could extend this to simulate a real cluster.

Then build and run the instance:

   docker-compose up --build

You should have a running instance on your port http://localhost:9200.

Optional tool

cerebro

It's a web application that permits to introspect/admin your cluster's state.

Adding a cerebro/Dockerfile:

   FROM openjdk:8-jre
   ENV CEREBRO_VERSION 0.7.2
   RUN wget https://github.com/lmenezes/cerebro/releases/download/v${CEREBRO_VERSION}/cerebro-${CEREBRO_VERSION}.tgz
   RUN tar xvf cerebro-0.7.2.tgz
   RUN mkdir cerebro-${CEREBRO_VERSION}/logs
   RUN mv cerebro-${CEREBRO_VERSION} /opt/
   EXPOSE 1234
   WORKDIR /opt/cerebro-${CEREBRO_VERSION}
   CMD ["bin/cerebro", "-Dhttp.port=1234"]

Now edit the initial docker-compose.yml and add the following in the `services` dict:

   cerebro:
     container_name: cerebro
     build: cerebro
     ports:
      - "1234:1234"

Now:

   $ docker-compose up

should start both your elasticsearch instance and your cerebro instance.

Check your cerebro local instance running at http://localhost:1234/. You can now connect this instance to your elasticsearch 'cluster' (elasticsearch: http://<fqdn>:9200).