Fixes #37367 - Switch to 'network' directive instead of ifcfg

Fixes #35674 - Add more custom pre/post snippet hooks

Fixes #35137 - Permit setting puppet tag during install

Fixes #34339 - sanitize fqdn in tests

Tests were almost not using the fqdn defined in settings.yaml.test
That is quite confusing at first sight and we should not override this value by fixtures, only if overriden in the same test file.

Fixes #34214 - use host_param_true? to detect puppet6-repo

Fixes #32602 - enables puppet 7 agent support

Co-authored by @ikonia - Matt Darcy

Fixes #31947 - add grub2/ks validation to jenkins rake task

Fixes #33034 - add a description to all provisioning templates

This PR udpates all the templates metadata to provide at least minimal
description that is then stored in the DB and shown in the edit form.

Co-authored-by: Timo Goebel <mail@timogoebel.name>...

Fixes #31059 - regenerate snapshots without environment

Fixes #31407 - prevent spaces for snapshot test files