GUTS is a workload migration engine that automatically migrates existing workloads and virtual machines from previous generation virtualization platforms to OpenStack. It supports migrating VMs, volumes, networks, users, and other resources between OpenStack environments or from platforms like VMware to OpenStack. GUTS has API, scheduler, and migration services to orchestrate the migrations. It can convert disk formats and manage hypervisor-specific tools during the migration process. Future plans include supporting more hypervisors and resource types.

1. OpenStack Migration Service
Bharat Kumar K, OpenStack Developer

2. ● Overview
● Use cases
● Components
● Architecture
● Features
● Future road map
● References
Agenda

3. “GUTS: A Workload migration engine designed to
automatically move existing workloads and virtual
machines from various previous generation virtualisation
platforms on to OpenStack”
Overview

4. ● Traditional Virtualization Platforms → OpenStack migrations
● Public cloud → Private cloud
● OpenStack → OpenStack migrations
● Complete environment migration between OpenStack→OpenStack
● Upgrade / maintenance of clouds
● Various resource migrations: VMs, volumes, networks, configuration, etc...
● Migration of user applications
Use Cases

5. ● guts-api service:
○ Accepts and responds to end user migration API calls
○ Enforces some policies and initiates orchestration activities
● guts-scheduler service:
○ Selects the migration nodes for migration operations
○ Selects a migration node based on conversion space available on migration nodes
● guts-migration service:
○ A workers daemon that creates and manages migration processes of resources.
Internal Components

6. Architecture
Destination HypervisorsSource Hypervisors
VMWare
OpenStack
Migration Node
Hyper - V
Keystone guts-api
guts-scheduler
VMWare
OpenStack
Hyper - V
guts-migrationguts-migration
guts-migration
guts-migration
1
3
2

7. ● Currently we support OpenStack as destination hypervisor.
● Features:
○ OpenStack→OpenStack supported resources: Computing instances, volumes,
networks, users, tenants, quota, security groups, keypairs, heat stacks, etc…
○ Computing instances migration b/w VMWare(VSphere)→OpenStack
○ Converts disk formats from VMDK to Qcow2, if required
○ Manages hypervisor specific tools like virtio-tools, vmware-tools etc.
○ GUTS DevStack plugin
○ GUTS Horizon plugin
Features

8. ● More Hypervisors:
○ AWS
○ Hyper-V, etc...
● More resource types:
○ Templates
○ Networks
○ Subnets
Future Road Map

9. ● GUTS documentation:
○ http://guts.readthedocs.io/en/latest/index.html
● Source code available at:
○ https://github.com/aptira/guts
○ https://github.com/aptira/python-gutsclient
○ https://github.com/aptira/guts-dashboard
Features

10. THANK YOU…!