docker-compose.yml

version: '3'

services:
  app-seed1:
    image: "lostintime/hello-akka:0.1.1"
    command: -Dakka.cluster.seed-nodes.0=akka.tcp://HelloAkka@app-seed1:2552
             -Dakka.cluster.seed-nodes.1=akka.tcp://HelloAkka@app-seed2:2552
             -jar /app/hello-akka.jar
    environment:
     - 'PUBLISH_HOST=app-seed1'
    stop_grace_period: 15s
    deploy:
      mode: replicated
      replicas: 1 # DO NOT SCALE THIS SERVICE!
      update_config:
        parallelism: 1
        delay: 15s
      restart_policy:
        condition: any
        delay: 20s
        max_attempts: 8
        window: 3m
  app-seed2:
    image: "lostintime/hello-akka:0.1.1"
    command: -Dakka.cluster.seed-nodes.0=akka.tcp://HelloAkka@app-seed1:2552
             -Dakka.cluster.seed-nodes.1=akka.tcp://HelloAkka@app-seed2:2552
             -jar /app/hello-akka.jar
    environment:
     - 'PUBLISH_HOST=app-seed2'
    stop_grace_period: 15s
    deploy:
      mode: replicated
      replicas: 1 # DO NOT SCALE THIS SERVICE!
      update_config:
        parallelism: 1
        delay: 15s
      restart_policy:
        condition: any
        delay: 20s
        max_attempts: 8
        window: 3m
  app:
    image: "lostintime/hello-akka:0.1.1"
    command: -Dakka.cluster.seed-nodes.0=akka.tcp://HelloAkka@app-seed1:2552
             -Dakka.cluster.seed-nodes.0=akka.tcp://HelloAkka@app-seed2:2552
             -Dakka.cluster.roles.0=worker
             -jar /app/hello-akka.jar
    stop_grace_period: 15s
    deploy:
      mode: replicated
      replicas: 1
      update_config:
        parallelism: 1
        delay: 15s
      restart_policy:
        condition: any
        delay: 20s
        max_attempts: 8
        window: 3m