OpenVPN configuration for CentOS

This article is specifically for PrivateInternetAccess on CentOS. As you might see there are no written packages/support for CentOS. I've followed a very good article from this link , but that was not enough as I had to tweak a lot afterwards.
Just to write down the key points here

Install OpenVPN using yum (enable EPEL beforehand)

sudo yum install openvpn

Please follow all steps as per this article.

Hope you have copied all VPN files in /etc/openvpn and the credentials to /root/.pia

When you start, VPN it throws an error

[root@localhost openvpn]# systemctl start openvpn@server.service

Job for openvpn@server.service failed. See 'systemctl status openvpn@server.service' and 'journalctl -xn' for details.

This is because you need to ensure the files/configurations you put in /etc/openvpn needs to be "Set files with the openvpn_etc_t type"

How to set files with a specific type

Please follow below instructions

sudo su -

cd /etc/openvpn/

semanage fcontext -a -t openvpn_etc_t <each_file>

/sbin/restorecon -v <each_file>

later you check status or start/stop vpn

systemctl status openvpn@server.service

systemctl start openvpn@server.service

systemctl stop openvpn@server.service