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Eucalyptus: An Open-source Infrastructure for Cloud Computing

Eucalyptus: An Open-source Infrastructure for Cloud Computing. Rich Wolski Eucalyptus Systems Inc. www.eucalyptus.com. Exciting Weather Forecasts. Commercial Cloud Formation. Eucalyptus - Confidential. What is a cloud?. SLAs. Web Services. Virtualization. Cloudy issues.

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Eucalyptus: An Open-source Infrastructure for Cloud Computing

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  1. Eucalyptus: An Open-source Infrastructure for Cloud Computing Rich Wolski Eucalyptus Systems Inc. www.eucalyptus.com

  2. Exciting Weather Forecasts

  3. Commercial Cloud Formation Eucalyptus - Confidential

  4. What is a cloud? SLAs Web Services Virtualization

  5. Cloudy issues • Public clouds are opaque • What applications will work well in a cloud? • Many of the advantages offered by Public Clouds appear useful for “on premise” IT • Self-service provisioning • Legacy support • Flexible resource allocation • What extensions or modifications are required to support a wider variety of services and applications? • Data assimilation • Multiplayer gaming • Mobile devices

  6. Open-source Cloud Infrastructure • Idea: Develop an open-source, freely available cloud platform for commodity hardware and software environments • Stimulate interest and build community knowledge • Quickly identify useful innovations • Act to dampen the “hype” • First-principles cloud implementation • Not a refactorization of previously developed technology • Linux or Anti-Linux? • Linux: open-source platform supporting all cloud applications changes the software stack in the data center • Anti-Linux: transparency of the platform makes it clear that clouds do not belong in the data center

  7. What’s in a name? • Elastic Utility Computing Architecture Linking Your Programs To Useful Systems • Web services based implementation of elastic/utility/cloud computing infrastructure • Linux image hosting ala Amazon • How do we know if it is a cloud? • Try and emulate an existing cloud: Amazon AWS • Functions as a software overlay • Existing installation should not be violated (too much) • Focus on installation and maintenance • “System Administrators are people too.”

  8. Goals for Eucalyptus • Foster greater understanding and uptake of cloud computing • Provide a vehicle for extending what is known about the utility model of computing • Experimentation vehicle prior to buying commercial services • Provide development, debugging, and “tech preview” platform for Public Clouds • Homogenize local IT environment with Public Clouds • AWS functionality locally makes moving using Amazon AWS easier, cheaper, and more sustainable • Provide a basic software development platform for the open source community • E.g. the “Linux Experience” • Not designed as a replacement technology for AWS or any other Public Cloud service

  9. Open-source Cloud Anatomy • Extensibility • Simple architecture and open internal APIs • Client-side interface • Amazon’s AWS interface and functionality (familiar and testable) • Networking • Virtual private network per cloud • Must function as an overlay => cannot supplant local networking • Security • Must be compatible with local security policies • Packaging, installation, maintenance • system administration staff is an important constituency for uptake

  10. Eucalyptus Infestation

  11. The EC2 API • Create and terminate virtual machines • Create == provision and not boot • Terminate == destroy and not halt • Image • initial root file system • Instance • Image + kernel + ramdisk + ephemeral disk + private IP + public IP • Create an image: upload a root file system • Run an instance: launch a VM with a specific • Image that has been uploaded (into S3) • Kernel and ramdisk that Amazon provides • Ephemeral disk that gets created and attached

  12. The S3 API • Bucket store: buckets and objects • Bucket: container for objects • Object: unit of storage/retrieval • Buckets are Created and Destroyed • Object are either Put or Get • Object storage is transactional • Last write prevails • Eventually consistent • Object writes will eventually be propagated • Buckets are access controlled

  13. The EBS API • Persistent Storage volumes that can be attached by VMs • Raw block devices (must be formatted by owner/user) • Persist across VM creation and termination • Cannot be shared by multiple VMs simultaneously • Not accessible across “availability zones” (virtual data centers) • Persistent virtual local disk

  14. All Together Now REST/SOAP -- Public IP -- Security Groups -- Put/Get storage -- Eventual consistency S3 EC2 Availability Zone VM VM EBS EBS VM Availability Zone VM VM

  15. RDMA and Cloud • RDMA between hosted Virtual Machines • Sockets are the only inter-VM IPC as of today • Requires virtualization support for RDMA for isolation • Hypervisors • libvirt • RDMA in the cloud platform: EBS • EBS performance and reliability is critical • Current connection is via iSCSI to SAN/JBOD • Requires authentication interface for RDMA • Also requires virtualization support • Suggestion: RDMA support in virtIO and XCP • Will speed adoption for on-premise clouds

  16. Thanks! www.eucalyptus.com 805-845-8000 rich@eucalyptus.com • Thanks to our original research sponsors… • …and to our new commercial friends

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