Cloudwrap AWS leaves volumes

[zehicle]

After cloudwrap removes an AWS system, the volume for that system if left behind and has to be deleted.

WARNING: If they are not deleted, costs will be incurred.

[galthaus]

FYI- this isn't a bug. This is an inherit problem with some types of amazon VMs. We can attempt to work around this by adding code to lookup the volume and then delete after the VM is deleted. While this would work, this has issues as well. Like deleting volumes that people may wish to keep around.