v2ray-core/release/config/systemd/v2ray@.service

[Unit]
Description=V2Ray Service
Documentation=https://www.v2ray.com/ https://www.v2fly.org/
After=network.target nss-lookup.target

[Service]
# If the version of systemd is 240 or above, then uncommenting Type=exec and commenting out Type=simple
#Type=exec
Type=simple
# This service runs as root. You may consider to run it as another user for security concerns.
# By uncommenting User=nobody and commenting out User=root, the service will run as user nobody.
# More discussion at https://github.com/v2ray/v2ray-core/issues/1011
User=root
#User=nobody
CapabilityBoundingSet=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
AmbientCapabilities=CAP_NET_ADMIN CAP_NET_BIND_SERVICE
NoNewPrivileges=true
ExecStart=/usr/bin/v2ray/v2ray -config /etc/v2ray/%i.json
Restart=on-failure

[Install]
WantedBy=multi-user.target