docker-compose.yml

# Docker Compose for local development
# Starts all 3 services + PostgreSQL
#
# Usage:
#   cp .env.example .env          # then fill in your keys
#   cp diagrams/.env.example diagrams/.env
#   cp diagrams/backend/.env.example diagrams/backend/.env
#   docker compose up

services:
  # ── PostgreSQL ──────────────────────────────────────────────
  postgres:
    image: postgres:15-alpine
    ports:
      - "5432:5432"
    environment:
      POSTGRES_USER: gitdiagram_user
      POSTGRES_PASSWORD: localdev
      POSTGRES_DB: gitdiagram
    volumes:
      - pgdata:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U gitdiagram_user -d gitdiagram"]
      interval: 5s
      timeout: 3s
      retries: 5

  # ── GitUnderstand API (Python FastAPI — ingestion engine) ───
  backend:
    build:
      context: .
      dockerfile: Dockerfile
    ports:
      - "8080:8080"
    environment:
      PORT: "8080"
      DEBUG: "true"
      USE_LOCAL_STORAGE: "true"
      LOCAL_STORAGE_PATH: "/tmp/gitunderstand"
      ALLOWED_HOSTS: "localhost,127.0.0.1"
      GITHUB_TOKEN: "${GITHUB_TOKEN:-}"
    volumes:
      - ./src:/app/src:ro
      - ./static:/app/static:ro
    user: "1000:1000"

  # ── GitDiagram Backend (Python FastAPI — diagram generation) ─
  diagrams-backend:
    build:
      context: ./diagrams/backend
      dockerfile: Dockerfile
    ports:
      - "8000:8000"
    environment:
      ENVIRONMENT: "development"
      GITHUB_PAT: "${GITHUB_PAT:-}"
      ALLOWED_ORIGINS: "http://localhost:3000,http://localhost:8080"
    depends_on:
      postgres:
        condition: service_healthy

  # ── Next.js Frontend (serves both GitUnderstand + Diagrams) ─
  web:
    build:
      context: ./diagrams
      dockerfile: Dockerfile
      args:
        GITUNDERSTAND_API_URL: "http://backend:8080"
        NEXT_PUBLIC_API_DEV_URL: "http://localhost:8000"
    ports:
      - "3000:8080"
    environment:
      NODE_ENV: "development"
      POSTGRES_URL: "postgresql://gitdiagram_user:localdev@postgres:5432/gitdiagram"
      GITUNDERSTAND_API_URL: "http://backend:8080"
      NEXT_PUBLIC_API_DEV_URL: "http://localhost:8000"
    depends_on:
      postgres:
        condition: service_healthy
      backend:
        condition: service_started
      diagrams-backend:
        condition: service_started

volumes:
  pgdata: