yocto-poky/meta/recipes-extended/rpcbind/rpcbind/rpcbind.service

[Unit]
Description=RPC Bind Service
Requires=rpcbind.socket

[Service]
Type=forking
EnvironmentFile=-@SYSCONFDIR@/rpcbind.conf
ExecStart=@SBINDIR@/rpcbind -w $RPCBIND_OPTS
SuccessExitStatus=2

[Install]
Also=rpcbind.socket