DOMjudge 搭建记录
最近在给学校的 CQUOJ 更新换代，在正式开始干活之前先自己走遍流程顺便记录一下。
Server 和 Judgehost 都从 Docker 直接安装，方便。
设备
- Ubuntu 22.04 LTS
- 2Core 4GiB 40GB
环境配置
- vim：毕竟只是改点配置文件 也没必要单独做配置。
- grub 改参数：
GRUB_CMDLINE_LINUX_DEFAULT="quiet cgroup_enable=memory swapaccount=1 isolcpus=2 systemd.unified_cgroup_hierarchy=0"- 这句话主要是为了后续安装 docker 方便。
- 具体功能是：开启内存限制，交换分区统计，隔离一个 cpu 出来跑手动绑核的进程，强制 v1 cgroup 来兼容。
- 改完记得
reboot
- docker: 照着文档安装就好：
sudo apt-get remove -y docker docker-engine docker.io containerd runc
sudo apt-get update
sudo apt-get install -y ca-certificates curl gnupg lsb-release
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list
sudo apt-get update
sudo apt-get install -y docker-ce docker-ce-cli containerd.io
sudo systemctl enable docker
sudo systemctl start docker
sudo curl -L "https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
sudo ln -sf /usr/local/bin/docker-compose /usr/bin/docker-compose
整个地方放所有的东西，然后设置系统服务
sudo mkdir -p /etc/docker-compose
sudo vim /etc/systemd/system/docker-compose@.service
在系统服务文件里添加：
[Unit]
Description=%i service deployed with docker compose
Requires=docker.service
After=docker.service
[Service]
user=root
Type=simple
WorkingDirectory=/etc/docker-compose/%i
ExecStart=/usr/local/bin/docker compose up --remove-orphans
[Install]
WantedBy=multi-user.target
并重新载入一次系统文件
sudo systemctl daemon-reload
主机部署
Under /etc/docker-compose/：
database.secret
MYSQL_ROOT_PASSWORD=<YOUR PASSWORD>
MYSQL_PASSWORD=<YOUR PASSWORD>
docker-compose.yml
version: "3.9"
services:
dj-mariadb:
container_name: dj-mariadb
image: mariadb:11.6.2
restart: unless-stopped
ports:
- "13306:3306"
volumes:
- ./database:/var/lib/mysql
env_file: database.secret
environment:
- MYSQL_USER=domjudge
- MYSQL_DATABASE=domjudge
- CONTAINER_TIMEZONE=Asia/Shanghai
command: --max-connections=1024 --max-allowed-packet=1G --innodb-log-file-size=512M
healthcheck:
test: mysqladmin ping -h localhost -u $$MYSQL_USER --password=$$MYSQL_PASSWORD
start_period: 10s
interval: 5s
timeout: 1s
retries: 5
domserver:
container_name: domserver
image: domjudge/domserver:8.2.3
restart: unless-stopped
ports:
- "80:80"
links:
- 'dj-mariadb:mariadb'
depends_on:
dj-mariadb: { condition: service_healthy }
env_file: database.secret
environment:
- MYSQL_HOST=mariadb
- MYSQL_USER=domjudge
- MYSQL_DATABASE=domjudge
- CONTAINER_TIMEZONE=Asia/Shanghai
judgehost:
image: 'domjudge/judgehost:8.2.3'
links:
- 'domserver:domserver'
depends_on:
domserver: { condition: service_healthy }
privileged: true
volumes:
#- /sys/fs/cgroup:/sys/fs/cgroup:ro
- /sys/fs/cgroup/cpuset:/sys/fs/cgroup/cpuset:rw
- /sys/fs/cgroup/memory:/sys/fs/cgroup/memory:rw
env_file: judgehost.secret
environment:
- CONTAINER_TIMEZONE=Asia/Shanghai
deploy:
mode: replicated
replicas: 2
endpoint_mode: dnsrr
restart_policy:
condition: on-failure
delay: 5s
max_attempts: 5
进 docker 里安装 mysql：
sudo docker compose exec dj-mariadb /bin/bash
#root:
apt update
apt install mysql-client
出来启动 server 端
sudo docker compose up -d dj-mariadb domserver
获取一下 judgehost 的 API key
sudo docker exec -it domserver cat /opt/domjudge/domserver/etc/restapi.secret
丢进 /etc/docker-compose/judgehost.secret
生成 admin 的密码：
sudo docker exec -it domserver cat /opt/domjudge/domserver/etc/initial_admin_password.secret
启动 docker 的所有服务
sudo docker compose up -d
确认能用之后直接访问主机 ip 即可。
最后设置一下系统服务自启动：
sudo systemctl enable docker-compose@domjudge.service