Cloud Power - The Early OpenStack Architecture
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The document describes Nebula, a cloud computing platform built in 2010. It has several types of nodes - cloud, compute, volume, object, and network - that work together using standard protocols and automation. The architecture aims for reliability, availability, and low cost. Key components include Puppet for configuration management, Nova for orchestration, and Ubuntu OS. The roadmap outlines upcoming features like auditing, PaaS, and IPv6 support. Lessons learned stress automating everything, thorough testing, and monitoring all aspects of the platform.
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Cloud Power - The Early OpenStack Architecture
- 1. NEBULA Cloud Computing Platform 2010 How we built Nebula Cloud Power
- 2. NEBULA Cloud Computing Platform 2010 Architecture
- 3. NEBULA Cloud Computing Platform 2010 Architecture Drivers • Reliability • Availability • Cost
- 4. NEBULA Cloud Computing Platform 2010 Shared Nothing • Messaging Queue • State Discovery • Standard Protocols Automated • IPMI • PXEBoot • Puppet
- 5. NEBULA Cloud Computing Platform 2010 Components • Cloud Node • Network Node • Compute Node • Volume Node • Object Node • (Monitoring / Metering / Logging / Scanning)
- 6. NEBULA Cloud Computing Platform 2010 LDAP Data Store Ubuntu OS Puppet Nova Cloud Node PXE Cloud Node RabbitMQ Redis KVS
- 7. NEBULA Cloud Computing Platform 2010 Ubuntu OS Puppet KVM LibVirt Nova Compute Node 802.1(q) Brctl PXE Project VLAN Running Instance Compute Node
- 8. NEBULA Cloud Computing Platform 2010 Ubuntu OS Puppet LVM AoE Nova Volume Node PXE Exported Volume Volume Node
- 9. NEBULA Cloud Computing Platform 2010 Ubuntu OS Puppet Nova Object Node PXE Object Node Nginx
- 10. NEBULA Cloud Computing Platform 2010 Ubuntu OS Puppet Nova Network Node 802.1(q) Brctl PXE Project VLAN Network Node IPTables Public Internet
- 11. NEBULA Cloud Computing Platform 2010 Security Groups • Combination of VLANs and Subnetting • Can be extended to use physical network/node separation as well (future)
- 12. NEBULA Cloud Computing Platform 2010 Scheduling • Mixed model (selection + auction) • Supports instance-type optimizations • Supports FIPS 199-based selection (future)
- 13. NEBULA Cloud Computing Platform 2010 Roadmap (What’s Coming)
- 14. NEBULA Cloud Computing Platform 2010 What’s Coming • SAML authentication and RBAC (Beta) • Computable Object Store (OS^2) (Beta) • Auditable Usage Metering (Sept 2010) • Platform-as-a-Service Prototype (Sept 2010) • FIPS 199 CIA: Moderate w/ CloudAudit (2011) • IPv6 and Jumbo Frame support (Late 2011)
- 15. NEBULA Cloud Computing Platform 2010 Lessons Learned
- 16. NEBULA Cloud Computing Platform 2010 Automate Everything • No SysAdmin is perfect • 99% is not good enough • NEVER make direct system changes • When in doubt, PXEBoot
- 17. NEBULA Cloud Computing Platform 2010 Test Everything • KVM + Jumbo Frames • Grinder • Unit Tests / Cyclometric Complexity • TransactionID Insertion (Universal Proxy)
- 18. NEBULA Cloud Computing Platform 2010 Monitor Everything • Ganglia • Munin • Syslog-NG + PHPSyslog-NG • Nagios • Custom Log Parsing (Instance-centric)
- 19. NEBULA Cloud Computing Platform 2010 Discussion Points
- 20. NEBULA Cloud Computing Platform 2010 SPoF == Availability • Network Layer BGP / DNS LB Linux-HA Network Nodes • Volumes DRBD / SAN • RAID Class RAID 6 / RAID 1+0
- 21. NEBULA Cloud Computing Platform 2010 What ARC Did • Train users to embrace cloud model, • Take advantage of commodity hardware