Description of problem:

Attach volume to Vm
//vm: is from ems.vms (ems is OpenStack ExtManagementSystem class)
//device: optional mountpoint string, e.g. '/dev/vdc'
cloud_volume.raw_attach_volume(vm.ems_ref, device = nil)

Detach volume from Vm
cloud_volume.detach_volume(vm.ems_ref)

List of volume attachments for VM, I'll create 'cloud_volumes' relationsship
vm.hardware.disks.select{|x| x.backing}.map{|x| x.backing}

Attached Vms of volume, I'll create 'vms' relationships
cloud_volume.attachments.map{|x| x.hardware.vm}

Create volume
ext_management_system = EmsCloud.first # the wanted Ems, from select box probably
cloud_tenant = ems.cloud_tenants.first # Tenant from select box
// size is in GB
options = {:display_name => "volume1", :size => 1, :cloud_tenant => cloud_tenant}
CloudVolume.raw_create_volume(ext_management_system, options)

Update volume
volume = CloudVolume.first
volume.raw_update_volume({:display_name => "volume5"})

Delete volume
volume = CloudVolume.first
volume.raw_delete_volume

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:
https://github.com/ManageIQ/manageiq/pull/6176