This patch adds the documentation directly in the sphinx role documentation index. All variables have been commented with a proper description to be included automatically in the sphinx build. This patch also disables the facts gathering because this validation doesn't need them. Change-Id: I99a506d17a2e76c9513745db877e5ce0ba3aae6a Signed-off-by: Gael Chamoulaud (Strider) <gchamoul@redhat.com>