docker-compose.yml

version: '3.8'

services:
  cassandra:
    image: cassandra:4.0.6
    container_name: cassandra
    healthcheck:
      test: ["CMD", "cqlsh", "-e", "describe keyspaces" ]
      interval: 5s
      timeout: 5s
      retries: 60
    ports:
      - "9042:9042"
    volumes:
      - ./cassandra/data/:/var/lib/cassandra
    environment:
      CASSANDRA_DC: datacenter1
      CASSANDRA_PASSWORD: cassandra
      # By default, Cassandra autodetects the available host memory and takes as much as it can.
      # Therefore, memory options are mandatory if multiple Cassandras are launched in the same node.
      MAX_HEAP_SIZE: 2G
      HEAP_NEWSIZE: 200M

  training-app:
    container_name: training-app
    build: training-app
    restart: always
    ports:
      - "8080:8080"
    depends_on:
      cassandra:
        condition: service_healthy
    environment:
      - SPRING_DATA_CASSANDRA_CONTACTPOINTS=cassandra
    healthcheck:
      test: "curl --fail --silent http://localhost:8080/private/health | grep UP || exit 1"
      interval: 20s
      timeout: 5s
      retries: 5