functions so that they can be 'retargeted' to a temporary
directory, which allows us the ability to run a full set
of cloud-init stages.
Neat things:
1. All cloud-init code is unchanged (as long as it goes
through the utils functions for most functionality)
2. Allows for a natural way to setup a temporary directory
then patch the new directory as the new 'root' and then
run cloud-init stages and then check the contents of
what was placed as desired.
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