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In order to set up your Base Channel you will need some gpg key information from the server.
I used the following commands to acquire this information:
[root@sw ~]# cd /etc/pki/rpm-gpg/
[root@sw rpm-gpg]# gpg --with-fingerprint RPM-GPG-KEY-CentOS-7

In order to set up the repository for the base channel I used:
http://www.gtlib.gatech.edu/pub/centos/7.6.1810/os/x86_64/

Lastly, trying to sync repositories and packages can be extremely taxing on system resources; especially if done via the web GUI. I think this is because it also kicks off some java process as well as the sync. As a work around, close the web GUI completely, and use the following command via CLI: spacewalk-repo-sync -c Insert-Channel-Label


Overall I would prefer leaner server provisioning software. My future projects will have less to do with deployments and have more focus on web operations.

List of future interest:
Nginx
Haproxy
Varnish
Python
Jenkins
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