How to Run SolrCloud with Docker-Compose: Complete Guide

In your docker-compose.yml, define the SolrCloud services. You’ll typically have:

A ZooKeeper service (required for SolrCloud coordination).
One or more Solr instances (nodes) that connect to ZooKeeper to form the SolrCloud cluster.

Here’s an example docker-compose.yml for a basic setup:

version: '3'
services:
  zookeeper:
    image: zookeeper:3.6
    ports:
      - "2181:2181"
    environment:
      ZOO_MY_ID: 1
      ZOO_SERVERS: server.1=zookeeper:2888:3888

Solu1:-

image: solr:8.11
    ports:
      - "8983:8983"
    environment:
      SOLR_CORE_CONF: solrconfig.xml
      SOLR_HEAP: 512m
      SOLR_JAVA_MEM: "-Xmx1g -Xms1g"
      SOLR_OPTS: "-DzkHost=zookeeper:2181 -DnumShards=2"
    depends_on:
      - zookeeper
    entrypoint:
      - docker-entrypoint.sh
      - solr-precreate
      - gettingstarted

Solu2:-

image: solr:8.11
    ports:
      - "8984:8983"
    environment:
      SOLR_CORE_CONF: solrconfig.xml
      SOLR_HEAP: 512m
      SOLR_JAVA_MEM: "-Xmx1g -Xms1g"
      SOLR_OPTS: "-DzkHost=zookeeper:2181 -DnumShards=2"
    depends_on:
      - zookeeper
    entrypoint:
      - docker-entrypoint.sh
      - solr-precreate
      - gettingstarted

In this example:

zookeeper service uses the zookeeper:3.6 image.
solr1 and solr2 services use the solr:8.11 image, connect to ZooKeeper (zookeeper:2181), and define their configurations (SOLR_CORE_CONF, SOLR_HEAP, SOLR_JAVA_MEM, SOLR_OPTS).

Start SolrCloud: Navigate to the directory containing your docker-compose.yml file and run: