As well as building this brilliant proper portable cloud, Karanbir also helped me to choose parts for my rather cheaper non-portable caseless alternative:
If you are messing with virtualization setups, hypervisors and low level os/kernel things you often can't (or at least don't want to for speed, stability etc) be in a virtualized environment as your base layer.
The configuration outside of VMs (e.g. routing) is slightly different.
Apart from the obvious fact that - depending on the the hardware used - you can get more computing power than from one machine.
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[ 3.4 ms ] story [ 33.0 ms ] threadhttps://rwmj.wordpress.com/2014/04/28/caseless-virtualizatio...
I still run 3-4 VMs at the same time on my ancient X201 on Hyper-V.
https://www.joyent.com/blog/spin-up-a-docker-dev-test-enviro...
I wonder what the cost difference would be between this setup and the original article box?