version: '3.8'

services:
  router:
    build:
      context: .
      dockerfile: Dockerfile.router
    ports:
      - "8000:8000"
    environment:
      - SHARD_URLS=http://shard_science:8001,http://shard_history:8001,http://shard_coding:8001
    depends_on:
      - shard_science
      - shard_history
      - shard_coding

  shard_science:
    build:
      context: .
      dockerfile: Dockerfile.shard
    environment:
      - SHARD_ID=Science_Node
      - SHARD_TOPIC=Science
      - PORT=8001
    ports:
      - "8001:8001"

  shard_history:
    build:
      context: .
      dockerfile: Dockerfile.shard
    environment:
      - SHARD_ID=History_Node
      - SHARD_TOPIC=History
      - PORT=8001
    ports:
      - "8002:8001"

  shard_coding:
    build:
      context: .
      dockerfile: Dockerfile.shard
    environment:
      - SHARD_ID=Coding_Node
      - SHARD_TOPIC=Coding
      - PORT=8001
    ports:
      - "8003:8001"