docker-compose.yml

version: "3"

services:

  cassandra:
    image: cassandra:latest
    ports:
    - 127.0.0.1:${CASSANDRA_PORT:-9042}:9042
    restart: always
    healthcheck:
      test: ["CMD-SHELL", "cqlsh -e 'SELECT now() FROM system.local;'"]
      interval: 30s
      timeout: 10s
      retries: 5

  node1:
    image: sample-akka-entity-replication:2021.7.0
    restart: always
    depends_on:
      cassandra:
        condition: service_healthy
    environment:
      JAVA_OPTS: >-
        -Dhttp.host=node1
        -Dakka.cluster.roles.0=replica-group-1
        -Dakka.remote.artery.canonical.hostname=node1
        -Dakka.cluster.seed-nodes.0=akka://ExampleSystem@${SEED:-node1}:2551
        -Ddatastax-java-driver.basic.contact-points.0=cassandra:9042
        -Dakka-entity-replication.raft.persistence.cassandra.journal.keyspace-autocreate=true
        -Dakka-entity-replication.raft.persistence.cassandra.journal.tables-autocreate=true
        -Dakka-entity-replication.raft.persistence.cassandra.snapshot.keyspace-autocreate=true
        -Dakka-entity-replication.raft.persistence.cassandra.snapshot.tables-autocreate=true
        -Dakka-entity-replication.eventsourced.persistence.cassandra.journal.keyspace-autocreate=true
        -Dakka-entity-replication.eventsourced.persistence.cassandra.journal.tables-autocreate=true

  node2:
    image: sample-akka-entity-replication:2021.7.0
    restart: always
    depends_on:
      cassandra:
        condition: service_healthy
    environment:
      JAVA_OPTS: >-
        -Dhttp.host=node2
        -Dakka.cluster.roles.0=replica-group-2
        -Dakka.remote.artery.canonical.hostname=node2
        -Dakka.cluster.seed-nodes.0=akka://ExampleSystem@node1:2551
        -Ddatastax-java-driver.basic.contact-points.0=cassandra:9042

  node3:
    image: sample-akka-entity-replication:2021.7.0
    restart: always
    depends_on:
      cassandra:
        condition: service_healthy
    environment:
      JAVA_OPTS: >-
        -Dhttp.host=node3
        -Dakka.cluster.roles.0=replica-group-3
        -Dakka.remote.artery.canonical.hostname=node3
        -Dakka.cluster.seed-nodes.0=akka://ExampleSystem@node1:2551
        -Ddatastax-java-driver.basic.contact-points.0=cassandra:9042

  haproxy:
    build:
      context: ./docker/haproxy
      args:
        http_proxy:
        https_proxy:
    restart: always
    volumes:
      - ./docker/haproxy/haproxy.cfg:/usr/local/etc/haproxy/haproxy.cfg
    ports:
      - 127.0.0.1:${APP_PORT:-8080}:8080
      - 127.0.0.1:${STATS_PORT:-8081}:8081