It's nice but it still doesn't fix the issue with people who have medium end machines where you develop in a VM full time and want to be able to run a VM within a VM.
For example with fairly old but still reasonable hardware you cannot run virtualbox inside of an existing virtualbox instance.
If you have a windows box and develop full time in a linux VM you cannot run vagrant inside of that linux VM because unless you have a modern CPU it lacks the instruction sets required to run virtualization within virtualization.
Now using docker instead of a VM would work but docker only supports 64 bit operating systems so anyone stuck with a 32bit host OS still can't use vagrant and has to resort to using raw linux containers without docker which is really cumbersome.
It's nice but it still doesn't fix the issue with people who have medium end machines where you develop in a VM full time and want to be able to run a VM within a VM.
For example with fairly old but still reasonable hardware you cannot run virtualbox inside of an existing virtualbox instance.
If you have a windows box and develop full time in a linux VM you cannot run vagrant inside of that linux VM because unless you have a modern CPU it lacks the instruction sets required to run virtualization within virtualization.
Now using docker instead of a VM would work but docker only supports 64 bit operating systems so anyone stuck with a 32bit host OS still can't use vagrant and has to resort to using raw linux containers without docker which is really cumbersome.