Introduction to Openstack: basic concepts, latest Havana project release, cloud terminology (including IaaS, PaaS and SaaS). This presentation was shown in the first Openstack Montreal user group in November 19 2013 (http://montrealopenstack.org/)

1. Openstack
A quick introduction
November 2013

2. Index
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Cloud terminology
Openstack history
Core Components
Related projects
Distributions
Competitors

3. Cloud terminology

4. What is Openstack
● Open-source project for IaaS (private or
private)
● Massive scale
● Horizontally scalable services
● Illusion of infinite resources
● Rapid provisioning / tear down of resources
● Modular services with well defined APIs

5. Openstack releases

6. Openstack popularity

7. The Foundation

8. Core projects
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Dashboard (Horizon)
Compute (Nova)
Networking (Neutron)
Block Storage (Cinder)
Image Service (Glance)
Object Storage (Swift)
Identity (Keystone)
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Metering/Monitoring (Ceilometer)
Orchestration (Heat)
Database Service (Trove)
Bare metal (Ironic)
Queue service (Marconi)
Data processing (Savanna)
Common Libraries (Oslo)

9. Horizon - Dashboard
● Self-service web UI for creating and managing
instances (written in Django)

10. Nova - Compute node
● Schedules virtual machines to run on a set
of nodes
● Similar in concept to Amazon EC2
● Multiple hypervisor support: KVM, Xen, LXC,
VMware
● Multiple storage backends: iSCSI, NetApp,
Nexenta, XenSM, SAN
● Native OpenStack API + EC2 API Support

11. Neutron - Networking
● Previously called Quantum
● Provides networking as a service
● Plugin architecture to allow integration with
hardware based networking solutions
● Allows Software Defined Networks (SDN)
● Both L2 and L3 features
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VPNaaS
LBaaS
FWaaS
QoS
vNICs

12. Cinder - Block storage
● Provides block storage for runtime of
instances
● Enables ability to do live migration of
instances
● Similar to Amazon EBS
● Snapshot support
● Backups to Swift as well

13. Glance - Image service
● Mechanism for storing and retrieving disk
images
● Backends: Swift, S3, filesystem
● Image Types: raw, qcow2, vmdk, vhd, iso,
ami/aki, ovf
● Public or private images & image sharing
● Allows every tenant its own image catalog
● E.g: API to request latest version of a OS

14. Swift - Object storage
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Read/write objects (files) via HTTP interface
Similar to Amazon S3 (supports S3 API)
Data replication capability
Very scalable
Distributed, fault-tolerant, eventually
consistent
● 3 components
○ Proxy server
○ Storage server
○ Consistency server

15. Keystone - Identity Services
● Common authentication / authorization
framework based on tokens
● Manages users, tenants, roles
● Pluggable backends: SQL, PAM, LDAP,
KVS
● Support for oAuth, SAML, openID

16. Putting it all together

17. Integrated projects
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Dashboard (Horizon)
Compute (Nova)
Networking (Neutron)
Block Storage (Cinder)
Image Service (Glance)
Object Storage (Swift)
Identity (Keystone)
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Metering/Monitoring (Ceilometer)
Orchestration (Heat)
Database Service (Trove)
Bare metal (Ironic)
Queue service (Marconi)
Data processing (Savanna)
Common Libraries (Oslo)

18. Ceilometer
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Infrastructure to collect measurements
Focused on monitoring and metering
Original goal: billing
Integrated reports in Horizon

19. Heat
● Orchestration engine to launch composite
cloud applications using text-based
templates
● Similar to Amazon Cloudformation
● Templates integrate well with Puppet, Chef
● Integrated autoscaling using ceilometer
● Called ‘stacks’ in Horizon
● Example: wordpress + mysql

20. Trove
● Database as a Service (like Amazon RDS)
● Scalable and reliable implementations
● Can handle both relational (RDBMS) and
non-relational (NoSQL)
● Not limited to MySQL, it can potentially deal
with many different backends

21. Ironic
● Baremetal provisioning (forked from
previous Nova driver)
● No virtualization: for performance purposes
● Manages PXE, IPMI, hardware RAID
● Still under heavy development

22. Marconi
● Message queueing service, like SQS/SNS,
but with the same API
● Use Cases
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Distribute tasks among multiple workers
Forward events to data collectors
Publish events to any number of subscribers
Send commands to one or more agents
Request action or get information from agent

23. Savanna
● A simple way to build a Hadoop cluster in
Openstack
● Similiar to Amazon ElasticMapReduce
● Lets create a cluster of a given version, size,
topology. and modify/scale it dynamically
● Can leverage unused capacity from a
Openstack private cloud
● Managed via the same GUI (Horizon)
● Can use Swift to store results

24. Oslo
● Project for all the common shared libraries
● Under the hood project (no features here)
● It is also the project for generalist code
reviewers or specialist API maintainers
● Still in progress: continually adopting code
from other projects

25. Modular by design

26. Related projects
● Manila - shared filesystem as a service
● Designate - DNSaaS
● Barbican / Cloudkeep - secret key
management (aaS)
● TripleO - Openstack on Openstack
● Development tools:
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Tempest
Gerrit
Jenkins
etc..

27. Packaging / Distributions
Devstack (github)
Stackforge (Puppet)
Packstack (RedHat)
RDO (Fedora-Redhat)
Ubuntu
Suse
Fuel (Mirantis)
Stackops 360

28. Competitors
● Private IaaS:
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Cloudstack
Eucalyptus
Opennebula
vCloud
Xen Cloud
● More info => http://www.qyjohn.net/?p=3373

29. Thank You
Marcos Garcia
marcos.garcia@enovance.com

30. NEXT
Demonstration of
Devstack
and
Packstack