cassandra/docker-compose.yml at master · pokle/cassandra · GitHub

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x-cassandra: &cassandra
  image: cassandra:5
  environment: &cassandra-env
    MAX_HEAP_SIZE: 1G
    HEAP_NEWSIZE: 256M
  networks: [cassandra]
  # Serialise joins via healthcheck — Cassandra 4+ uses only 16 vnode tokens by
  # default, so simultaneous bootstraps can pick colliding tokens and one node
  # gets stuck in JOINING.
  healthcheck:
    test: ["CMD-SHELL", "nodetool info | grep -q 'Native Transport active: true'"]
    interval: 10s
    timeout: 5s
    retries: 30
    start_period: 30s

services:
  cass1:
    <<: *cassandra
    container_name: cass1

  cass2:
    <<: *cassandra
    container_name: cass2
    environment:
      <<: *cassandra-env
      CASSANDRA_SEEDS: cass1
    depends_on:
      cass1: { condition: service_healthy }

  cass3:
    <<: *cassandra
    container_name: cass3
    environment:
      <<: *cassandra-env
      CASSANDRA_SEEDS: cass1
    depends_on:
      cass2: { condition: service_healthy }

networks:
  cassandra:
    name: cassandra