Setting up AEM6.3 as a service Linux Redhat version 7.3 - aem

Question

I am trying to set up AEM6.3 environment as a service and following below steps. But having some issues-
I have RedHat version 7.3 linux server.
I am taking reference from here
aem file- (/usr/bin/aem)
!/bin/bash
#
# /etc/rc.d/init.d/aem6
#
#
# # of the file to the end of the tags section must begin with a #
# character. After the tags section, there should be a blank line.
# This keeps normal comments in the rest of the file from being
# mistaken for tags, should they happen to fit the pattern.>
#
# chkconfig: 35 85 15
# description: This service manages the Adobe Experience Manager java process.
# processname: aem6
# pidfile: /crx-quickstart/conf/cq.pid
# Source function library.
. /etc/rc.d/init.d/functions
SCRIPT_NAME=`basename $0`
AEM_ROOT=/mnt/crx/author
AEM_USER=root
########
BIN=${AEM_ROOT}/crx-quickstart/bin
START=${BIN}/start
STOP=${BIN}/stop
STATUS="${BIN}/status"
case "$1" in
start)
echo -n "Starting AEM services: "
su - ${AEM_USER} ${START}
touch /var/lock/subsys/$SCRIPT_NAME
;;
stop)
echo -n "Shutting down AEM services: "
su - ${AEM_USER} ${STOP}
rm -f /var/lock/subsys/$SCRIPT_NAME
;;
status)
su - ${AEM_USER} ${STATUS}
;;
restart)
su - ${AEM_USER} ${STOP}
su - ${AEM_USER} ${START}
;;
reload)
;;
*)
echo "Usage: $SCRIPT_NAME {start|stop|status|reload}"
exit 1
;;
esac
aem.system (/etc/systemd/system) (Couldn't find system.d so placed this file systemd)
[Unit]
Description=Adobe Experience Manager
[Service]
Type=simple
ExecStart=/usr/bin/aem start
ExecStop=/usr/bin/aem stop
ExecReload=/usr/bin/aem restart
RemainAfterExit=yes
[Install]
WantedBy=multi-user.target
I have provided permissions to both of these files as-
#chmod u+rwx /usr/bin/aem
#chmod u+rwx /etc/systemd/system/aem.system
When I am giving these commands-
#cd /etc/systemd/system
#systemctl enable aem.system
It's giving me below error-
#systemctl enable aem.system
**Failed to execute operation: No such file or directory**
Am I missing any step here?
Thanks!

Answer 1

You are correct in placing the custom unit file in /etc/systemd/system as that is the place for all unpackages files. However, your file should really be called aem.service. To the best of my knowledge, systemd does not pick up files ending in .system. On a side note: Those overly liberal filesystem permissions really are unnecessary, 755 should be more than sufficient.
Also: If there really is a /etc/init.d/aem6 file as the linked guide suggests, systemd's SysV-compatibility layer should be able to read that one in and systemctl enable --now aem6 is everything you need to do.