# Docker-in-Docker (DinD) service based on Debian
# This allows running Docker inside a Docker container

x-defaults: &defaults
  restart: unless-stopped
  logging:
    driver: json-file
    options:
      max-size: 100m
      max-file: "3"

services:
  dind:
    <<: *defaults
    image: ${GLOBAL_REGISTRY:-}alexsuntop/debian-dind:${DEBIAN_DIND_VERSION:-0.1.0}
    profiles:
      - ${COMPOSE_PROFILES:-}
    build:
      context: .
      dockerfile: Dockerfile
      args:
        - DEBIAN_VERSION=${DEBIAN_VERSION:-13.2-slim}
        - INSTALL_NVIDIA_TOOLKIT=${INSTALL_NVIDIA_TOOLKIT:-false}
    privileged: true
    ports:
      - "${DIND_PORT_OVERRIDE:-2375}:2375"
    volumes:
      - dind_data:/var/lib/docker
    environment:
      - TZ=${TZ:-UTC}
      - DOCKER_TLS_CERTDIR=${DOCKER_TLS_CERTDIR:-}
    healthcheck:
      test: ["CMD", "docker", "info"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 30s
    deploy:
      resources:
        limits:
          cpus: ${DIND_CPU_LIMIT:-2.0}
          memory: ${DIND_MEMORY_LIMIT:-4G}
        reservations:
          cpus: ${DIND_CPU_RESERVATION:-1.0}
          memory: ${DIND_MEMORY_RESERVATION:-2G}

  # GPU-enabled DinD (optional)
  dind-gpu:
    <<: *defaults
    image: ${GLOBAL_REGISTRY:-}alexsuntop/debian-dind:${DEBIAN_DIND_GPU_VERSION:-0.1.0-gpu}
    profiles:
      - gpu
    build:
      context: .
      dockerfile: Dockerfile
      args:
        - DEBIAN_VERSION=${DEBIAN_VERSION:-13.2-slim}
        - INSTALL_NVIDIA_TOOLKIT=true
    privileged: true
    ports:
      - "${DIND_PORT_OVERRIDE:-2375}:2375"
    volumes:
      - dind_gpu_data:/var/lib/docker
    environment:
      - TZ=${TZ:-UTC}
      - DOCKER_TLS_CERTDIR=${DOCKER_TLS_CERTDIR:-}
      - NVIDIA_VISIBLE_DEVICES=all
      - NVIDIA_DRIVER_CAPABILITIES=compute,utility
    healthcheck:
      test: ["CMD", "docker", "info"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 30s
    deploy:
      resources:
        limits:
          cpus: ${DIND_CPU_LIMIT:-2.0}
          memory: ${DIND_MEMORY_LIMIT:-4G}
        reservations:
          cpus: ${DIND_CPU_RESERVATION:-1.0}
          memory: ${DIND_MEMORY_RESERVATION:-2G}
          devices:
            - driver: nvidia
              count: 1
              capabilities: [gpu]

volumes:
  dind_data:
  dind_gpu_data: