Add airgap image list to release artifacts

Update RPM systemd services for easy modification.

Modified installer produces a k3s-server and k3s-agent systemd
service, with env files located in /etc/rancher/k3s.

The k3s-server service may be started without modification but
k3s-agent requires a token and url modification to the
/etc/rancher/k3s/k3s-agent.env file for functionality.

The k3s-server service will conflict with the k3s-agent service,
so both may not be started at the same time.

Creates ./package/rpm/ repo dir for rpm specific resources and
relocates k3s.spec.

Use curl to send dispatch event to k3s-upgrade repo

Update k8s to v1.17.4-k3s1

Ask more clearly for K3s args and logs

[release-1.17] Backport add asterisk

In the bug report template, more clearly ask the user for K3s arguments and logs

Don't require selinux utils and require k3s_selinux

Add asterisks for omitted values in nodeconfig

Revert nginx traefik

This reverts commit 9a170330.

Only publish rpm on tag

Publish RPMs

drone.yml backport

Testing - Check for changes in the airgap image list

default backend multiarch image

use multiarch image for nginx

Replace traefik with nginx