Toy Online Judge

This is a very normal Online Judge.

Installation Guide

This is what I did on my machine. Adapt if necessary and use your wisdom. I'm using Arch Linux, with kernel linux-userns from AUR.

1. Setup Database
   1. Install and setup PostgreSQL (postgresql)
   2. Create postgresql user toyojweb and toyojjudge
   3. Create database toyoj from toyoj.sql
   4. Allow user http to login as toyojweb
      • If you prefer password, modify the dsn in step 2-6
   5. Allow user toyojjudge to login as toyojjudge
      • If you prefer password, modify the dsn in step 3-8
2. Setup Web Server
   1. Install Nginx (nginx-mainline) and php-fpm
   2. Install php-pgsql from official repository
   3. Enable pdo_pgsql.so in /etc/php/php.ini
   4. Run composer install in web/
   5. Run ./rsync-web.sh as root, which will
      1. Copy web/ to /srv/http/toyoj but web/config
      2. Copy toyoj.conf to /etc/nginx/toyoj.conf
   6. Create /srv/http/toyoj/config/config.php
   7. Include /etc/nginx/toyoj.conf in a server block of /etc/nginx/nginx.conf
3. Setup Judge Backend
   1. Install GCC (gcc), Make (make), Python (python) and setuptools (python-setuptools)
   2. Run make release in sandbox/
   3. Copy sandbox/sandbox to /usr/bin/sandbox
   4. Run python setup.py install in judge/
   5. Install various compilers for language support
   6. Run chmod 4755 /usr/bin/newuidmap /usr/bin/newgidmap
   7. Add system user toyojjudge and allocate at least 1 subuid and 1 subgid
   8. Run toyojjudge as user toyojjudge
   9. Run judge/grant-cgroups PID_OF_JUDGE as root in one minute