Support of volume multi-attach

Proposers

• Sergio Tarazona (Whitestack)
• Gianpietro Lavado (Whitestack)

Description

VNF requires to create VDUs attached to the same volume, this feature in openstack is called multi-attach https://docs.openstack.org/cinder/latest/admin/volume-multiattach.html

In this case, we propose to use the vduStorageRequirements value in the IFA 011 v2.7.1 and set the key multiattach and the boolean value true to activate it, default value would be "false"

If another volume in the VDU or VNF has the same name, then it is assumed that they will attach the volume previously created.

Demo or definition of done

VNF should be created with shared volumes defined in the descriptor. A Robot test will be created and should be passed to validate the feature.