[CoreOS] Running systemd based docker service - permission issues

[Shivaram Mysore]

Hello,

I have a simple service definition file - nginx-test.service and located in
user *core* home directory (/var/home/core) :

[Unit]
Description=This a basic Nginx service for a testing
After=docker.service
Requires=docker.service

[Install]
WantedBy=multi-user.target

[Service]
RestartSec=10
Restart=always
ExecStartPre=-/usr/bin/docker kill nginx-test
ExecStartPre=-/usr/bin/docker rm nginx-test
ExecStart=/usr/bin/docker run \
  --name=nginx-test \
  --network=host \
  --volume=/var/home/core/nginx/config:/etc/nginx/conf \
  --volume=/var/home/core/nginx/html:/usr/share/nginx/html \
  nginx:1.17.2-alpine nginx -c /etc/nginx/conf/nginx.conf -g "daemon off;"
ExecStop=/usr/bin/docker stop nginx-test

This file is:
$ sudo cp nginx-test.service /etc/systemd/system/
$ sudo systemctl daemon-reload
$ sudo systemctl start nginx-test
$ pwd
/var/home/core
$ tree nginx
nginx
├── config
│   └── nginx.conf
└── html
    └── index.html

This exact configuration works on my CoreOS AMI on AWS - which we use for
the last couple of years.  But, it does not work with Fedora CoreOS on my
bare metal hardware.  I even changed directory/file permissions on nginx
from core to root and still get the errors:

Aug 24 02:53:36 rhino docker[28805]: nginx-test
Aug 24 02:53:36 rhino systemd[1]: Started This a basic Nginx service for a
testing.
Aug 24 02:53:37 rhino docker[28813]: 2019/08/24 02:53:37 [emerg] 1#1:
open() "/etc/nginx/conf/nginx.conf" failed (13: Permission denied)
Aug 24 02:53:37 rhino docker[28813]: nginx: [emerg] open()
"/etc/nginx/conf/nginx.conf" failed (13: Permission denied)
Aug 24 02:53:38 rhino systemd[1]: nginx-test.service: Main process exited,
code=exited, status=1/FAILURE
Aug 24 02:53:38 rhino systemd[1]: nginx-test.service: Failed with result
'exit-code'.

$ ls -l nginx/config/
total 4
-rw-r--r--. 1 root root 3735 Aug 24 01:08 nginx.conf

Is there a new way to make this work?

Thanks & Regards

/Shivaram