Migration of Openstack based VM instances from OSM

Proposers

• Deepika E (Tata Elxsi)
• Ramesh Ramanathan B (Tata Elxsi)

Description

We should be able to move virtual machine (VM) instances, launched as part of a VNF, from one compute host to another in Openstack based VIM.

This feature enables migration of the virtual machine instances of VNFs running in one compute host to another compute host without affecting the running VNF instances. The migration feature is supported as a NS level operation and can be performed on any VM instance of the VNFs in that NS.

Demo or definition of done

If there is a running NS instance with one VNF which consists of a virtual machine instance launched in compute-host-1 of VIM(Openstack). Then, from OSM, perform VM migration operation for the specified VM instance to move it to compute-host-2. Verify in VIM that the VM instance of the specified VNF instance is migrated to the new compute, compute-host-2.