Comparing open source private cloud platforms
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The document compares four open source IaaS platforms: OpenStack, Eucalyptus, CloudStack, and Ganeti, discussing their histories, major components, strengths, and weaknesses. Key factors for selecting a platform include ease of use, fault tolerance, performance, and compatibility with other services. Ultimately, no single platform is deemed superior; instead, the choice depends on specific project requirements and deployment scenarios.
![Storage Comparison
Type OpenStack Eucalyptus CloudStack Ganeti
Disk Images yes yes yes yes [1]
Block devices yes [2] yes [2] yes [3] yes [4]
Fault Tolerance yes [5] yes [6] yes [7] yes
1. Disk Image support has limitations
2. Via an elastic block storage service
3. iSCSI, OCFS2, CLVM (depends on hypervisor)
4. Primary storage method, also has sharedfs support
5. Uses rsync in the backend
6. Not added until version 3.0, uses DRBD
7. Parts are built-in, Storage is on your own](https://image.slidesharecdn.com/comparingopensourceprivatecloudplatforms-120718112515-phpapp02/85/Comparing-open-source-private-cloud-platforms-19-320.jpg)
![VM Image Comparison
Type OpenStack Eucalyptus CloudStack Ganeti
Image Service yes yes yes no
Self Service [1] yes yes yes no [2]
Amazon API yes [3] yes yes no
1. Ability for users to create and manage their own VM
images
2. Third-party applications can offer this
3. Some support](https://image.slidesharecdn.com/comparingopensourceprivatecloudplatforms-120718112515-phpapp02/85/Comparing-open-source-private-cloud-platforms-20-320.jpg)
![Self Service Comparison
Type OpenStack Eucalyptus CloudStack Ganeti
Web Interface yes yes yes yes [1]
Users & Quotas yes yes yes yes [1]
Console access yes yes yes yes [1]
User management yes yes yes yes [1]
1. Available via third-party application Ganeti Web Manager](https://image.slidesharecdn.com/comparingopensourceprivatecloudplatforms-120718112515-phpapp02/85/Comparing-open-source-private-cloud-platforms-21-320.jpg)
![Networking Comparison
Type OpenStack Eucalyptus CloudStack Ganeti
Auto-allocation yes yes yes no [1]
Floating IPs yes yes yes no
User defined yes yes yes no
Layer 2 yes yes yes no
1. Proposal submitted but not yet implemented](https://image.slidesharecdn.com/comparingopensourceprivatecloudplatforms-120718112515-phpapp02/85/Comparing-open-source-private-cloud-platforms-22-320.jpg)
![Other factors
OpenStack Eucalyptus CloudStack Ganeti
Codebase Python Java, C Java Python, Haskell,
Shell
Hypervisors Xen, KVM, UML, Xen, KVM, Xen, KVM, VMware, Xen, KVM, LXC
LXC, VMware VMware Citrix XenServer
Installation Medium Large Medium/Large Low
Requirements
Maintenance Many components Depends on your Medium Easy
[1] to maintain size
1. Base on my observation and opinion](https://image.slidesharecdn.com/comparingopensourceprivatecloudplatforms-120718112515-phpapp02/85/Comparing-open-source-private-cloud-platforms-23-320.jpg)
Comparing open source private cloud platforms
- 1. Comparing Open Source Private Cloud (IaaS) Platforms Lance Albertson OSU Open Source Lab Associate Director of Operations [email protected] / @ramereth
- 2. About me ● OSU Open Source Lab ● Server hosting for Open Source Projects ● Open Source development projects ● Gentoo Developer ● Sysadmin ● Jazz trumpeter
- 3. Disclaimer
- 4. What I'll Cover ● Compare 4 IaaS Platforms ● IaaS Components ● Discuss Strengths / Weaknesses ● Provide best uses for each platform ● NOT covering PaaS or SaaS platforms
- 5. Background Experience ● Used Xen+iSCSI for several years ● Researched an alternative tool ● Picked Ganeti+KVM 3 years ago ● Have had excellent experience for our use case ● Created web front-end for Ganeti ● Looking at augmenting services with OpenStack
- 6. Current State of Private IaaS ● Many options ● AWS API support ● Maturity of the projects ● Solving different problems ● Complexity of the platform ● Differences in backend architecture
- 7. What do you want in an IaaS? ● Ease of use ● Fault tolerance ● Low-cost of entry/maintenance ● Performance ● Ease of expansion ● API provisioning ● Compatibility with other platforms ● Agility / Fast provisioning
- 8. Major components of IaaS ● Storage ● VM Image management ● Self service / Web interface ● Networking ● Fault tolerance ● User management ● API / Hybrid Cloud Readiness ● Installation / Maintenance
- 10. OpenStack History ● Joint project with Rackspace & NASA ● Launched in June 2010 ● Enable anyone to create and offer cloud computing services ● Many corporations joined
- 11. OpenStack Components ● Nova (compute) ● Swift (object storage) ● Glance (image service) ● Keystone (identity management) ● Horizon (gui interface)
- 12. Eucalyptus History ● Started as a research project at UC Santa Barbara ● Company founded in 2009 to commercialize the project ● Split into two editions: ○ Open-core ○ Open source ● June 2012 back to fully open source
- 13. Eucalyptus Components ● Cloud Controller (CLC) ○ Manages the virtualization resources and APIs ○ Provides web interface ● Walrus (S3 storage) ● Cluster Controller (CC) ○ Controls execution of VMs and their networking ● Storage Controller (SC) ○ Provides block-level storage to VMs (EBS) ● Node Controller (NC) ○ Controls VMs via hypervisors
- 14. CloudStack History ● Originally developed by Cloud.com ● Open Sourced in May 2010 (GPLv3) ● Citrix purchased Cloud.com in Aug 2011 ● Donated to ASF in Feb 2012
- 15. CloudStack Components ● Management Server ● Hypervisor Nodes ● Storage Nodes ● Layers: Zone, Pod, Cluster, Host, Primary Storage, Secondary Storage
- 16. Ganeti History ● Started as internal Google ● Open sourced in August 2007 ● Used primarily for back-office servers for Google ● Focus on hardware fault-tolerance ● Local block-level storage ● Cheap commidity hardware
- 17. Ganeti Components ● Master daemon ○ Controls overall cluster coordination ● Node daemon ○ Controls node functions (storage, VMs, etc) ● Conf daemon ○ Provide a fast way to query configuration ● API daemon - Provide a remote API ● Htools - Auto-allocation & rebalancing tools
- 19. Storage Comparison Type OpenStack Eucalyptus CloudStack Ganeti Disk Images yes yes yes yes [1] Block devices yes [2] yes [2] yes [3] yes [4] Fault Tolerance yes [5] yes [6] yes [7] yes 1. Disk Image support has limitations 2. Via an elastic block storage service 3. iSCSI, OCFS2, CLVM (depends on hypervisor) 4. Primary storage method, also has sharedfs support 5. Uses rsync in the backend 6. Not added until version 3.0, uses DRBD 7. Parts are built-in, Storage is on your own
- 20. VM Image Comparison Type OpenStack Eucalyptus CloudStack Ganeti Image Service yes yes yes no Self Service [1] yes yes yes no [2] Amazon API yes [3] yes yes no 1. Ability for users to create and manage their own VM images 2. Third-party applications can offer this 3. Some support
- 21. Self Service Comparison Type OpenStack Eucalyptus CloudStack Ganeti Web Interface yes yes yes yes [1] Users & Quotas yes yes yes yes [1] Console access yes yes yes yes [1] User management yes yes yes yes [1] 1. Available via third-party application Ganeti Web Manager
- 22. Networking Comparison Type OpenStack Eucalyptus CloudStack Ganeti Auto-allocation yes yes yes no [1] Floating IPs yes yes yes no User defined yes yes yes no Layer 2 yes yes yes no 1. Proposal submitted but not yet implemented
- 23. Other factors OpenStack Eucalyptus CloudStack Ganeti Codebase Python Java, C Java Python, Haskell, Shell Hypervisors Xen, KVM, UML, Xen, KVM, Xen, KVM, VMware, Xen, KVM, LXC LXC, VMware VMware Citrix XenServer Installation Medium Large Medium/Large Low Requirements Maintenance Many components Depends on your Medium Easy [1] to maintain size 1. Base on my observation and opinion
- 24. Ease of Installation ● Included via distribution ● Amount of upfront configuration needed for a base install ● Ease of initialization of a cluster OpenStack Eucalyptus CloudStack Ganeti Included in Ubuntu Excellent Install Guide Provide their own repos Included in Debian/Ubuntu Lots of configuration Yum/Apt repos Excellent install guide required Good Docs Puppet Labs Module Few commands for Minimal configuration Simple initialization needed initialization
- 25. Strengths / Weaknesses OpenStack Eucalyptus CloudStack Ganeti Young codebase Install requirements Very GUI centric Admin centric Uncertain future Configurable but not Single java core VM Deployment Weakness very customizable Initial No AWS configuration Community Inclusion AWS integration weak integration Single codebase Excellent commercial Well-rounded GUI Fault-tolerance support built-in Growing Fault-tolerance Stack is fairly simple Customizable Strengths community Offers a hybrid-cloud Customization of the Very simple to Corporate solution with AWS storage backend manage and support maintain
- 26. Which platform do you choose? ● Size of deployment ● Types of services to be hosted ● User-base ● Hardware/Budget limitations ● Complexity of the system ● Fault tolerance importance ● Compatibility with other clouds
- 27. Summary of Comparisons OpenStack Eucalyptus CloudStack Ganeti Philosophy public & private hybrid Private, highly Private, node cloud, private/public customized failure tolerant, standardized cloud cloud, local storage API compatibility standardized API Public Cloud Some AWS Excellent AWS Some AWS None Compatibility Ideal Setting Large group of Large group of Medium group of Smaller group machines for machines for lots machines for of machines for lots of users of semi-trusted semi-trusted highly trusted users users users with fault tolerance Fault-tolerance Some built-in Good with recent Some built-in Fully tolerant / versions Designed
- 28. Choosing Openstack ● Very young project ● Lots of corporate backing ● Codebase is simplified (python only) ● Excellent for large deployments ● Web interface is young, limited ● Only use the components you need ● Medium complexity ● Excellent APIs
- 29. Choosing Eucalyptus ● Fairly mature project ● Lots of features ● Codebase is complicated ● Complex installation requirements ● Great commercial support ● Excellent hybrid-cloud platform ● Re-focused effort back to Open Source
- 30. Choosing CloudStack ● No Distribution Support ● Lots of features ● Medium complexity to setup ● Fault-tolerance built into parts ● AWS compatibility is weak ● Monolithic component architecture ● Recent ownership shifts ● Used by several large hosting providers
- 31. Choosing Ganeti ● Fault tolerance built-in ● Ideal for smaller clusters ● Less complex, but less featureful ● No EC2 compatibility ● Better performance ● Local storage ● Only solves the compute problem ● Can be augmented with GlusterFS & other third-party applications
- 32. What about the others? ● OpenNebula - HPC community ● Nimbus - Scientific community ● oVirt - libvirt
- 33. No single winner or loser ● Solving different problems ● No perfect solution for everything ● Try each platform out first ● Map out what your end goal is ● Think about: ○ scalability ○ manageability ○ fault-tolerance
- 35. Questions? Lance Albertson [email protected] @ramereth http://lancealbertson.com