/usr/lib/systemd/system/var-lib-nginx-tmp.mount for in -memory nginx cache on CentOS 7

var-lib-nginx-tmp.mount

#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.

[Unit]
Description=Temporary Directory for nginx
ConditionPathIsMountPoint=!/var/lib/nginx/tmp
DefaultDependencies=no
Conflicts=umount.target
Before=nginx.service

[Mount]
What=tmpfs
Where=/var/lib/nginx/tmp
Type=tmpfs
Options=rw,size=512M

# Make 'systemctl enable tmp.mount' work:
[Install]
WantedBy=nginx.service