This document provides an overview of open source cloud computing. It discusses the characteristics and service models of cloud computing, including Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). It also covers deployment models like public, private and hybrid clouds. The document then discusses building compute clouds with open source software, covering open virtual machine formats, sourcing open source software and VMs, open source hypervisors, open source compute clouds, scale-up vs. scale-out, private cloud architecture, managing clouds with open source tools, automation, availability targets, open source provisioning tools, monitoring tools, and additional resources.

1. Crash Course On Open Source Cloud computing
Gustavo Ribeiro
@gustavonfr

2. Agenda
1. Introducão
2. Visão geral da computação em nuvem
3. Ferramentas Open para construção de
Cloud
4. Ferramentas Open para gerenciamento
5. Dúvidas

3. Five Characteristics of Clouds

4. Cloud Computing Service Models
USER CLOUD a.k.a. SOFTWARE AS A SERVICE
Single application, multi-tenancy, network-based, one-to-many delivery of
SaaS applications, all users have same access to features.
Examples: Salesforce.com, Google Docs, Red Hat Network/RHEL
DEVELOPMENT CLOUD a.k.a. PLATFORM-AS-A-SERVICE
Application developer model, Application deployed to an elastic service that
autoscales, low administrative overhead. No concept of virtual machines or
PaaS operating system. Code it and deploy it.
Examples: Google AppEngine, Windows Azure, Rackspace Site, Red Hat
Makara
SYSTEMS CLOUD a.k.a INFRASTRUCTURE-AS-A-SERVICE
Servers and storage are made available in a scalable way over a network.
IaaS Examples: EC2,Rackspace CloudFiles, OpenStack, CloudStack,
Eucalyptus, Ubuntu Enterprise Cloud, OpenNebula

5. Deployment Models
Public, Private & Hybrid Clouds

6. Cloud Still Requires
Architectural Design
 Cloud Computing isn’t a magical
solution apps need to be able to
scale out
 Design your architecture with the
end in mind
 Make your infrastructure easily
replicable

7. Building Compute Clouds
with Open Source Software

8. Third Outline
Why Open Source? Level
 Fourth Outline
Level
 Lower barrier to participation Fifth
 Larger user base, users helping users Outline
 Aggressive release cycles stay current with the state-of-
Level
the-art
Sixth
 Open data, Open standards, Open APIs
Outline
Level
Seventh
Outline
Level
Eighth
Outline
Level

9. Third Outline
Open Virtual Machine Formats Level
 Fourth Outline
Level
Open Virtualization Format (OVF) is an open Fifth
standard for packaging and distributing virtual
Outline
appliances or more generally software to be run in
Level
virtual machines. Sixth
Outline
Level
• Seventh
•
• Outline
• Level
•
Eighth
Outline
Level

10. Third Outline
Sourcing Open Source Software Level
VMs and Cloud Appliances  Fourth Outline
Level
Fifth
Outline
Level
Sixth
Outline
Level
Seventh
Outline
Level
Eighth
Outline
Level

11. Third Outline
Open Source Hypervisors Level
 Fourth Outline
Level
Open Source Fifth
 Xen, Xen Cloud Platform (XCP)
 KVM – Kernel-based Virtualization
Outline
 VirtualBox* - Oracle supported Virtualization Solutions Level
 OpenVZ* - Container-based, Similar to Solaris Containers or BSD Zones
Sixth
 LXC – User Space chrooted installs
Outline
Proprietary Level
 VMware Seventh
 Citrix Xenserver Outline
 Microsoft Hyper-V
 OracleVM (Based on OS Xen)
Level
Eighth
Outline
Level

12. Open Source Compute Clouds

13. Scale-Up or Scale-Out
Vertical Scaling (Scale-Up) –
Allocate additional resources to
VMs, requires a reboot, no need
for distributed app logic, single-
point of OS failure
Horizontal Scaling (Scale-Out) –
Application needs logic to work
in distributed fashion (e.g. HA-
Proxy and Apache, Hadoop)

14. Private Cloud Architecture

15. Managing Clouds with
Open Source Tools

16. Automation Unlocks
the Potential of the Cloud

17. The Myth of the Nines
99.9% (three nines)
99.95%
99.99% (four nines)

18. 6/1/12

19. Open Source
Provisioning Tools
Year Started License Installation
Targets

20. Open Source
Monitoring Tools

21. DUVIDAS?

22. Additional Resources
 Devops Toolchains Group
 DevOps Wikipedia Page
 Open Cloud Initiative
 NIST Cloud Computing Platform
 Open Virtualization Format Specs
 Clouderati Twitter Account
 Planet DevOps

23. Crash Course in Open Source Cloud Computing
by Gustavo Ribeiro is licensed under a Creative Commons Attribution-ShareAlike 3.0
United States License.