docker-compose.yml

#version: "3.8"

services:
  # The MCP Server that the host connects to
  mcp-server-go:
    build:
      context: ./mcp-server-go
      dockerfile: Dockerfile
    container_name: mcp-server-go
    networks:
      - mcp-net
    # Healthcheck tells Docker how to verify the server is ready
    healthcheck:
      # Use curl to check if the server is responding.
      # You might need to add curl to your mcp-server-go Dockerfile if it's not present.
      # A simple check could be to see if the port is open.
      test: ["CMD", "nc", "-z", "localhost", "8090"]
      interval: 5s
      timeout: 3s
      retries: 5
    # Expose the port the server listens on
    ports:
      - "8090:8090" # Maps port 8090 inside the container
      - "8091:8091" # Maps port 8091 inside the container

  mcp-server-python:
    build:
      context: ./mcp-server-python
      dockerfile: Dockerfile
    container_name: mcp-server-python
    networks:
      - mcp-net
    # Healthcheck tells Docker how to verify the server is ready
    healthcheck:
      # Use curl to check if the FastAPI health endpoint is responding
      test:
        [
          "CMD",
          "curl",
          "--request",
          "GET",
          "--url",
          "http://localhost:9001/health",
          "--header",
          "Accept: application/json, text/event-stream",
          "--header",
          "Content-Type: application/json",
          "--header",
          "User-Agent: insomnia/11.2.0",
        ]
      interval: 5s
      timeout: 3s
      retries: 5
    ports:
      - "9000:9000" # Maps port 9000 inside the container

  # The MCP Host that depends on the server
  mcp-host:
    tty: true # same as -t, allocates a pseudo-TTY
    stdin_open: true # same as -i, keeps STDIN open
    build:
      context: ./mcp-host
      dockerfile: Dockerfile
    container_name: mcp-host
    # This now waits for the mcp-server to be 'healthy', not just 'started'
    depends_on:
      mcp-server-go:
        condition: service_started
      mcp-server-python:
        condition: service_started
    environment:
      # The host can reach the server using its service name 'mcp-server'
      - USERS_MCP_SERVER_ADDR=${USERS_MCP_SERVER_ADDR:-http://mcp-server-go:8090}

      # The host can reach the Python server using its service name 'mcp-server-python'
      - CALC_MCP_SERVER_ADDR=${CALC_MCP_SERVER_ADDR:-http://mcp-server-python:9000}

      # Pass the API key from a .env file or the host's environment
      - DEEPSEEK_API_KEY=${DEEPSEEK_API_KEY}

      # Ensure proper terminal settings for Bubble Tea
      - TERM=${TERM:-xterm-256color}
    networks:
      - mcp-net

# Defines the network that allows containers to communicate
networks:
  mcp-net:
    driver: bridge