[colug-432] Cloud-based nested virtualization or other "wrapping" alternatives

[R P Herrold]

On Tue, 21 Jun 2016, Jeff Frontz wrote:

> My thought is to run the legacy distribution on a VM (say, under kvm)
> inside another instance of a more modern distribution -- using the
> encapsulating host's security to protect the legacy instance from the
> outside world.  The only access to the legacy instance would be from the
> modern instance (an encapsulating bastion host, if you will).

nested containers are trickier than simeply running two 
instances, with the second accessible only across a non-routed 
backside network. Pmman is set up to permit the end user to 
disable and optionally re-enable the 'front side' routed 
network, and each machine gets an isolated appearance on a 
backside '10.x.x.n/24 network

but ... I think you re overthinking this ... why not use a 
tool such as 'mock' to build inside a chroot running the older 
version?  the 'mock.cfg' files would be long since stale as 
mirrors were turned down, but you are going to have to put up 
binaries or find a public mirror still lingering anyway

Fedora 7 was roughly time contemporaneous with CentOS 5, (each 
first released in 2007) which latter distribution is hanging 
on by its last fingernails before entering EOL

-- Russ herrold