Devstack On Demand
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The document provides an overview of DevStack, an opinionated script for quickly creating an OpenStack development environment, and discusses its utility in testing cloud orchestrators with various configurations. It highlights challenges in running OpenStack on AWS due to limitations in virtualization and networking. The document also introduces Ravello's HVX technology for running VMware/KVM workloads in public clouds and outlines future developments for cloud environments.
Devstack On Demand
- 1. Copyright © GigaSpaces 2015. All rights reserved.Copyright © GigaSpaces 2015. All rights reserved. Devstack on Demand Barak Merimovich, Gigaspaces Gal Moav, Ravello
- 2. Copyright © GigaSpaces 2015. All rights reserved. Agenda ● What is Devstack ● Why Devstack on demand ● Introducing Ravello ● Demo ● Some recommendations ● Future Plans
- 3. Copyright © GigaSpaces 2015. All rights reserved. What is Cloudify? Send Metrics Execute Policy Feedback Correlate with Historical Events Real Time Analytics Deploy Fail- over Scale Real Time Analytics Cloud Infrastructure Intelligent Orchestration 11 11 11 11 11 1 Historical Data 00 00 00 00 0 11 11 11 11 11 1 00 00 00 00 0 11 11 11 11 11 1 00 00 00 00 0
- 4. Copyright © GigaSpaces 2015. All rights reserved. What is Devstack? “DevStack is an opinionated script to quickly create an OpenStack development environment. It can also be used to demonstrate starting/running OpenStack services ... DevStack is not and has never been intended to be a general OpenStack installer. “
- 5. Copyright © GigaSpaces 2015. All rights reserved. Why Devstack on Demand? ● How do you test a cloud orchestrator? ● What Clouds do you test? ● What Versions? ● What scenarios?
- 6. 6www.ravellosystems.com About us L2 networking L3+ networking ‘98–‘05 ‘05–‘11 ’11+ Backed by … Awarded best of VMworld
- 7. www.ravellosystems.com OpenStack dev/test - need for agility Classic candidate for the public cloud ! • Multi-node dev/test environments • Many different possible configurations • Many different deployment methods • Different versions • Scale factor – (e.g. one node for functional tests, 50 nodes for scale tests) • Bursty usage patterns
- 8. www.ravellosystems.com Why you can’t run Openstack on AWS x86 serverx86 server XenXen VMVM VMVM VMVM AWS OpenStack with KVMOpenStack with KVM VTVT !! Cannot run a hypervisor (KVM, ESX, etc) without Intel VTx/AMD SVM. Very limited L2 access – so no complex OpenStack networking)
- 9. www.ravellosystems.com HVX: virtual infrastructure for the cloud XenXen HVXHVX VMVM VMVM VMVM • Nested virtualization • Binary translation • Exposes VMware or KVM devices to the VM on top • Software defined networking • Clean L2 environment • Maintain IP addresses (DHCP/Static, DNS …) • Storage abstraction x86 hardwarex86 hardware Run entire VMware/KVM workloads in AWS or Google without making any changes. Same VMs, same networking, storage …
- 10. www.ravellosystems.com 2 modes of HVX AWS or GoogleAWS or Google HVXHVX VMVM VMVM VMVM AWS or GoogleAWS or Google VMVM VMVM VMVM OpenStack with KVMOpenStack with KVM VMware workloads (VMs, networking) on AWS or Google OpenStack labs on AWS or Google Mode 1: Nested virtualization Mode 2: Nested2 virtualization (Inception) InceptionInceptionHVX
- 11. 6/21/15 Ravello Systems, Inc. 11 AWS/GCEAWS/GCE OpenStack with KVM on Ravello
- 12. Copyright © GigaSpaces 2015. All rights reserved. Demo ● Let's see it in action
- 13. Copyright © GigaSpaces 2015. All rights reserved. Some Notes ● Networking can be hard ● Accessing nested Vms is the real pain ● Proxies are easiest ● One box – one version ● Multi-node devstack configurations are possible – not all are tested ● Stick with single node for most cases
- 14. Copyright © GigaSpaces 2015. All rights reserved. Future Cloud Environments ● Devstack with no Security Groups ● Devstack latest ● Devcloud (cloudstack in a box) ● vSphere 5.1/5.5 ● vSphere 6.0 ● vCloud
- 15. Copyright © GigaSpaces 2015. All rights reserved. Future Work ● Performance improvements ● rejoin-stack.sh
- 16. Copyright © GigaSpaces 2015. All rights reserved. Final Words...
- 17. Copyright © GigaSpaces 2015. All rights reserved.
Editor's Notes
- #4: Open source cloud orchestration. Based on OASIS TOSCA – and therefore multi-cloud by design
- #5: useful as a quick sanity check for the OpenStack installation. It has evolved to support a large number of configuration options and alternative platforms and support services. many of the configuration combinations are rarely, if ever, tested.
- #6: What is Cloudify Tons of unit tests Verify each plugin separately
- #13: Tons of unit tests Verify each plugin separately