The CentOS cloud infrastructure storing the vagrant CentOS 8 image
changed the directory path and remove the old 8.0 image so the vagrant
box add centos/8 fails returning a 404 http error.
As a workaround we can pull the image from CentOS instead of letting
vagrant doing the resolution.
Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
Add a script to retry several times to fire up VMs to avoid vagrant
failures.
Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
Co-authored-by: Andrew Schoen <aschoen@redhat.com>