Startup script for raspberrypi3 using yocto?

dl-mgr_0.1.bb:

**DESCRIPTON = "Startup scripts"
#LICENSE = "CLOSED"
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"

PR = "r0"

SRC_URI = "file://dl-mgr.sh \
           file://dl-mgr.service \
	  "
inherit update-rc.d systemd

SYSTEMD_PACKAGES = "${PN}"
INITSCRIPT_PACKAGES = "${PN}"

SYSTEMD_SERVICE_${PN} = "dl-mgr.service"

do_install(){
             if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)}; then
    		  install -d ${D}/etc/systemd/system/multi-user.target.wants
    		install -m 644 ${WORKDIR}/dl-mgr.service ${D}/etc/systemd/system/dl-mgr.service
		## Add following link if you want auto start of service
    		## ln -s /etc/systemd/system/dl-mgr.service ${D}/etc/systemd/system/multi-user.target.wants/dl-mgr.service
fi 
}

do_install () {
            

            install -d ${D}${libexecdir}
		install -m 0755 ${WORKDIR}/dl-mgr.sh ${D}${libexecdir}/dl-mgr.sh
            install -d ${D}${systemd_system_unitdir}
	        install -m 0644 ${WORKDIR}/dl-mgr.service ${D}${systemd_system_unitdir} 
}   

FILES_${PN} += "${libexecdir}/dl-mgr.sh"
FILES_${PN} += "${systemd_system_unitdir}/dl-mgr.service"**

And it is in dir:/sources/poky/meta/recipes-core/