> Is it possibile ? If yes, how ? Short answer yes: http://docs.openstack.org/user-guide/content/nova_cli_resize.html
Long answer: It depends, iirc you can only resize to larger flavors and it is a somewhat error-prone procedure that requires downtime. I think it uses the vm migration codebase and that means it will copy the whole vm and not just modify the cpu/mem and be done with it. (it also might have changed by now since it has been a while since I looked at it) I recommend to highly test this before allowing users to use this functionality. Cheers, Robert van Leeuwen
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