[Unit]
Description=meshgo MQTT Broker
Documentation=https://github.com/mochi-mqtt/server
After=network.target

[Service]
Type=simple
# 以 root 运行以便绑定 1883 端口；如已设置 CAP_NET_BIND_SERVICE 可改为普通用户
User=root
Group=root

# 二进制路径，编译后 cp meshgo /usr/local/bin/meshgo
ExecStart=/usr/local/bin/meshgo

# systemctl reload meshgo  →  发送 SIGHUP → 热重载配置
ExecReload=/bin/kill -HUP $MAINPID

Restart=on-failure
RestartSec=5s

# 日志输出交由 journald 接管
StandardOutput=journal
StandardError=journal
SyslogIdentifier=meshgo

# 资源保护（可选）
PrivateTmp=true
NoNewPrivileges=true

[Install]
WantedBy=multi-user.target