Blueberry CTF

A CTF platform developed for the Lilac team. Designed for competitions with ~500 players.

Features:

• Private containers & private flags for each player
• Multiple tasks in one problem

Intro: Blueberry CTF 的设计、实现和反思

Start

Latest Debian is recommended.

Install requirements:

apt install nginx docker-compose tmux
apt install python3 python3-dotenv python3-flask python3-psycopg-pool python3-passlib python3-psutil python3-gevent python3-rich python3-pycryptodome gunicorn

Run PostgreSQL, generate config file and admin password:

sysctl -w fs.aio-max-nr=1048576

cd Blueberry-CTF
python3 platform-init.py

# ...
# Creating pgsql_pgadmin_1 ... done
# Creating pgsql_adminer_1 ... done
# Creating pgsql_db_1      ... done
# DB init ok. sleep 10s.
# Erase database...
# Init database...
# admin user: lilac
# password: Rd********KSw

Set up nginx:

cp conf/nginx_site.conf /etc/nginx/sites-available/default
nginx -t
# nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
# nginx: configuration file /etc/nginx/nginx.conf test is successful

nginx -s reload

Start Blueberry:

# use tmux!
cd web

gunicorn app:app
# [2024-01-29 18:00:50 +0800] [376930] [INFO] Starting gunicorn 20.1.0
# [2024-01-29 18:00:50 +0800] [376930] [INFO] Listening at: http://127.0.0.1:11451 (376930)
# [2024-01-29 18:00:50 +0800] [376930] [INFO] Using worker: gevent
# [2024-01-29 18:00:50 +0800] [376931] [INFO] Booting worker with pid: 376931

Now Blueberry platform is avaliable on port 80.

Build the demo challenge runma:

cd problems/runma
docker-compose build

Start the container manager:

# use tmux!

python3 backend.py

All done, enjoy your contest.