To start off, I do not take credit for this. For reference, I got the
information below (minus tweaks) from here
[https://forum.inductiveautomation.com/t/ignition-8-client-on-raspberry-pi/24464/21]
.
Open a terminal session, and type the following commands:
sudo su
wget -q -O - https://download.bell-sw.com/pki/GPG-KEY-bellsoft