docker-compose.yml

version: '3.8'

services:
  # Prometheus - Metrics collection and storage
  prometheus:
    image: prom/prometheus:latest
    container_name: credence-prometheus
    ports:
      - "9090:9090"
    volumes:
      - ./monitoring/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
      - ./monitoring/prometheus/alerts.yml:/etc/prometheus/alerts.yml
      - prometheus-data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--storage.tsdb.retention.time=30d'
      - '--storage.tsdb.retention.size=10GB'
      - '--web.console.libraries=/usr/share/prometheus/console_libraries'
      - '--web.console.templates=/usr/share/prometheus/consoles'
      - '--web.enable-lifecycle'
    restart: unless-stopped
    networks:
      - monitoring

  # Grafana - Visualization and dashboards
  grafana:
    image: grafana/grafana:latest
    container_name: credence-grafana
    ports:
      - "3001:3000"
    environment:
      - GF_SECURITY_ADMIN_USER=admin
      - GF_SECURITY_ADMIN_PASSWORD=admin
      - GF_USERS_ALLOW_SIGN_UP=false
      - GF_SERVER_ROOT_URL=http://localhost:3001
      - GF_INSTALL_PLUGINS=
    volumes:
      - grafana-data:/var/lib/grafana
      - ./monitoring/grafana/provisioning:/etc/grafana/provisioning
    depends_on:
      - prometheus
    restart: unless-stopped
    networks:
      - monitoring

  # PostgreSQL - Database (optional, for local development)
  postgres:
    image: postgres:15-alpine
    container_name: credence-postgres
    ports:
      - "5432:5432"
    environment:
      - POSTGRES_USER=credence
      - POSTGRES_PASSWORD=credence_dev
      - POSTGRES_DB=credence
    volumes:
      - postgres-data:/var/lib/postgresql/data
    restart: unless-stopped
    networks:
      - monitoring

  # Redis - Cache (optional, for local development)
###############################################################################
# Credence Backend – Docker Compose for local development
#
# Services:
#   backend  – Express/TypeScript API (built from ./Dockerfile)
#   postgres – PostgreSQL 16 database
#   redis    – Redis 7 in-memory store
#
# Usage:
#   cp .env.example .env        # create local env file
#   docker compose up --build   # start all services
#   docker compose down -v      # stop and remove volumes
###############################################################################

services:
  # ---- Backend API --------------------------------------------------------
  backend:
    build:
      context: .
      dockerfile: Dockerfile
    container_name: credence-backend
    ports:
      - "${PORT:-3000}:3000"
    env_file:
      - .env
    environment:
      # Override individual vars here if needed; .env takes precedence
      NODE_ENV: development
      PORT: 3000
      DATABASE_URL: postgres://${POSTGRES_USER:-credence}:${POSTGRES_PASSWORD:-credence}@postgres:5432/${POSTGRES_DB:-credence}
      REDIS_URL: redis://redis:6379
    depends_on:
      postgres:
        condition: service_healthy
      redis:
        condition: service_healthy
    restart: unless-stopped
    # Healthcheck hits the /api/health endpoint
    healthcheck:
      test: ["CMD", "wget", "-qO-", "http://localhost:3000/api/health"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 10s

  # ---- PostgreSQL ---------------------------------------------------------
  postgres:
    image: postgres:16-alpine
    container_name: credence-postgres
    ports:
      - "${POSTGRES_PORT:-5432}:5432"
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-credence}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-credence}
      POSTGRES_DB: ${POSTGRES_DB:-credence}
    volumes:
      # Persist data across restarts
      - pgdata:/var/lib/postgresql/data
      # Drop .sql files in ./init-db/ to auto-run on first start
      - ./init-db:/docker-entrypoint-initdb.d
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-credence}"]
      interval: 5s
      timeout: 3s
      retries: 5

  # ---- Redis --------------------------------------------------------------
  redis:
    image: redis:7-alpine
    container_name: credence-redis
    ports:
      - "6379:6379"
    volumes:
      - redis-data:/data
    restart: unless-stopped
    networks:
      - monitoring

volumes:
  prometheus-data:
  grafana-data:
  postgres-data:
  redis-data:

networks:
  monitoring:
    driver: bridge
      - "${REDIS_PORT:-6379}:6379"
    volumes:
      - redisdata:/data
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 5s
      timeout: 3s
      retries: 5

volumes:
  pgdata:
  redisdata: