ad_fun/docker-compose.yml

# =============================================================================
# Attack/Defence stack - all services, one file.
#
# Deployed by .gitea/workflows/deploy.yaml to $STACK_DIR (/opt/stacks/myapp).
# Build contexts are relative to this file, i.e. the repo root.
#
# TWO RULES THIS FILE MUST OBEY (the workflow enforces both and will refuse
# to deploy otherwise):
#
#   1. Every published port is pinned to ${WG_IP}. A bare "1338:8080" binds
#      0.0.0.0, and Docker's iptables chain is evaluated before ufw's INPUT
#      chain -- so `ufw deny 1338` would NOT close it. Never omit the host_ip.
#
#   2. Anything that must survive a deploy lives either in a named volume or
#      under a `data/` directory. The workflow rsyncs the repo over the host
#      with --delete and only `data/` and `.env` are excluded from that.
#      A bind mount anywhere else gets wiped on every push.
#
# Required in /opt/stacks/myapp/.env (host-only, never in git) - see
# .env.example:
#   WG_IP=10.x.x.x        # the WireGuard address to publish on
#   SECRET_KEY=...        # puhososik JWT signing key
# =============================================================================

name: myapp

x-common: &common
  restart: unless-stopped
  security_opt:
    - no-new-privileges:true
  logging:
    driver: json-file
    options:
      max-size: "10m"
      max-file: "3"

services:
  # ------------------------------------------------------------ chessstars
  # Go + cgo engine. Listens on :8080 (PORT), state in /data.
  chessstars:
    <<: *common
    build: ./chessstars
    pids_limit: 256
    mem_limit: 256M
    cpus: 1.0
    networks: [chessstars_net]
    ports:
      - "${WG_IP}:1338:8080"
    volumes:
      - ./chessstars/data:/data
    environment:
      AUTH_CLEANUP_TTL: 60m
      AUTH_CLEANUP_INTERVAL: 5m
      GAME_CLEANUP_FINISHED_TTL: 30m
      GAME_CLEANUP_OPEN_TTL: 60m
      GAME_CLEANUP_INTERVAL: 5m

  # The cleaners below only rm files on a mounted volume; none of them needs a
  # socket. network_mode: none removes them as a pivot if a service falls.
  chessstars_course_cleaner:
    <<: *common
    image: c4tbuts4d/dedcleaner:latest
    network_mode: none
    pids_limit: 32
    mem_limit: 32M
    cpus: 0.1
    volumes:
      - ./chessstars/data/courses:/courses
    environment:
      DELETE_AFTER: 60m
      SLEEP: 5m
      DIRS: /courses

  # --------------------------------------------------------------- example
  # Flask, :5000. Notes moved from ./notes to ./example/data/notes so the
  # rsync --delete in the deploy stops wiping them on every push (rule 2).
  example:
    <<: *common
    build: ./example
    pids_limit: 256
    mem_limit: 64M
    cpus: 0.5
    networks: [example_net]
    ports:
      - "${WG_IP}:1337:5000"
    volumes:
      - ./example/data/notes:/app/notes

  example_cleaner:
    <<: *common
    image: c4tbuts4d/dedcleaner:latest
    network_mode: none
    pids_limit: 32
    mem_limit: 32M
    cpus: 0.1
    volumes:
      - ./example/data/notes:/notes
    environment:
      DELETE_AFTER: 30m
      SLEEP: 30m
      DIRS: /notes

  # ------------------------------------------------------------- hard_exam
  # Flask, :1337. src/db.py resolves the DB to <src>/data/data.db -> the
  # container path is /app/data/data.db, so /app/data is what gets persisted.
  # The old `./src/data.db:/app/data.db` mount pointed at a path the app never
  # opens, and Docker would have created it as a directory.
  hard_exam:
    <<: *common
    build: ./hard_exam
    pids_limit: 128
    mem_limit: 256M
    cpus: 0.5
    networks: [hard_exam_net]
    ports:
      - "${WG_IP}:51234:1337"
    volumes:
      - ./hard_exam/data:/app/data

  # ------------------------------------------------------------- puhososik
  # Flask, :5000. SECRET_KEY signs JWTs - app.py falls back to
  # 'default_secret_for_local_test' if unset, which would let anyone forge a
  # token, so fail the deploy loudly instead of booting insecure.
  puhososik:
    <<: *common
    build: ./puhososik
    pids_limit: 256
    mem_limit: 128M
    cpus: 0.5
    networks: [puhososik_net]
    ports:
      - "${WG_IP}:5252:5000"
    volumes:
      - ./puhososik/data:/app/data
    environment:
      SECRET_KEY: ${SECRET_KEY:?set SECRET_KEY in /opt/stacks/myapp/.env}

  puhososik_cleaner:
    <<: *common
    build: ./puhososik/cleaner
    network_mode: none
    pids_limit: 32
    mem_limit: 32M
    cpus: 0.1
    depends_on:
      - puhososik
    volumes:
      - ./puhososik/data:/data
    environment:
      DB_PATH: /data/puhososik.db
      DELETE_AFTER: 1800
      SLEEP: 300
      BATCH_SIZE: 400

  # ----------------------------------------------- reverse_and_polish (pwn)
  # socat -> patchelf'd binary as uid 1337. entrypoint.sh runs its own cleaner
  # loop over /data/ctf.db, so no sidecar and nothing to persist here.
  reverse_and_polish:
    <<: *common
    build: ./reverse_and_polish
    pids_limit: 256
    mem_limit: 256M
    cpus: 1.0
    networks: [reverse_and_polish_net]
    ports:
      - "${WG_IP}:7845:1337"

  # --------------------------------------------------------- skibidimonitor
  # Rust/axum, :12345. BIND_ADDR is 0.0.0.0 *inside* the container - that is
  # correct and unrelated to rule 1; the host_ip on the port mapping is what
  # keeps it off the public internet.
  skibidimonitor:
    <<: *common
    build: ./skibidimonitor
    pids_limit: 256
    mem_limit: 256M
    cpus: 1.0
    networks: [skibidimonitor_net]
    ports:
      - "${WG_IP}:12345:12345"
    volumes:
      - skibidi-data:/app/data
    environment:
      BIND_ADDR: 0.0.0.0:12345
      DATABASE_URL: sqlite:///app/data/skibidi.db?mode=rwc
      SESSION_TTL_SECONDS: 300
      SNAPSHOT_CACHE_TTL_SECONDS: 300

# One network per service instead of the shared default bridge: without this
# every container resolves and reaches every other one by name, so a single RCE
# hands the attacker the whole stack.
networks:
  chessstars_net:
  example_net:
  hard_exam_net:
  puhososik_net:
  reverse_and_polish_net:
  skibidimonitor_net:

volumes:
  skibidi-data: