Slides from the Montreal Linux MeetUp of October 3rd, 2017 held at the ÉTS.

1. cloudops.com @cloudops_
OpenStack Overview
October 3rd 2017

2. Stacy Véronneau
● Director of OpenStack Solutions and Lead OpenStack
Architect at CloudOps.
● Using public cloud resources since 2007
● Started ‘exploring’ OpenStack at Folsom and using at
Grizzly
● OpenStack MeetUp organizer
○ Montreal, Ottawa, Edmonton and Toronto(Co-Org)
● Speaker at OpenStack Days and Summit
○ Austin, Montreal, Barcelona, Boston, Ottawa
● OpenStack Mentor since August 2017

3. cloudops.com @cloudops_Page
About CloudOps
3
We enable our customers to own their destiny in a cloudy world by
leveraging open source cloud orchestration and best of breed technologies.
Our team has built and continues to support dozens of regional clouds for
telco and community cloud service providers around the world.
We’ve helped hundreds of software companies migrate to and scale their
businesses on regional cloud platforms such as cloud.ca and public clouds
such as Google Cloud Platform and Amazon Web Services.

4. cloudops.com @cloudops_
What is OpenStack?

5. cloudops.com @cloudops_Page
What is OpenStack?
5
As described by Wikipedia
“OpenStack is a cloud computing project aimed at
providing an infrastructure as a service (IaaS).”
The software platform consists of interrelated
components that control hardware pools of
processing, storage and networking”

6. cloudops.com @cloudops_Page
What is OpenStack?
6
● What it is
○ Abstraction Layer
○ A group of interrelated projects
○ IaaS Solution
○ Community Driven
● What it isn’t
○ Interdependent project (Exceptions Apply)
○ A complete standalone solution, extra components are needed
○ Standalone Virtualisation solution

7. cloudops.com @cloudops_Page
OpenStack Capabilities
7
● Virtual machines (VMs) on demand
○ Provisioning
○ Snapshotting
● Networks
○ Provisioning
○ Isolation
● Storage for VMs and arbitrary files
● Multi-tenancy
○ Quotas for different projects, users
○ User can be associated with multiple projects

8. cloudops.com @cloudops_
History and a High
Level Recap

9. cloudops.com @cloudops_Page
History
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● Started in 2010 by and
● Foundation created in 2012
● Latest release was on August 30th 2017 and is named Pike
The Mission:
“To produce the ubiquitous Open Source Cloud Computing platform that
will meet the needs of public and private clouds regardless of size, by being
simple to implement and massively scalable”.

10. cloudops.com @cloudops_Page
History - Release Naming
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Only single words with a maximum of 10 characters are good candidates for a name. Bonus points for sounding cool.
● Austin: The first design summit took place in Austin, TX
● Bexar: The second design summit took place in San Antonio, TX (Bexar county).
● Cactus: Cactus is a city in Texas
● Diablo: Diablo is a city in the bay area near Santa Clara, CA
● Essex: Essex is a city near Boston, MA
● Folsom: Folsom is a city near San Francisco, CA
● Grizzly: Grizzly is an element of the state flag of California (design summit takes place in San Diego, CA)
● Havana: Havana is an unincorporated community in Oregon
● Icehouse: Ice House is a street in Hong Kong
● Juno: Juno is a locality in Georgia
● Kilo: Paris (Sèvres, actually, but that's close enough) is home to the Kilogram, the only remaining SI unit tied to an artifact
● Liberty: Liberty is a village in the Canadian province of Saskatchewan
● Mitaka: It’s named after the town located in the Tokyo metro area, known for Inokashira park and the Ghibli museum,
● Newton (Austin, Texas): The "Newton House", located at 1013 E. Ninth St., Austin, TX, is listed on the National Register of Historic Places
● 2017.1 Ocata (Barcelona, Spain): Ocata is a beach about 20 minutes north of Barcelona by train
● 2017.2 Pike, the Massachusetts Turnpike, also the Mass Pike (Boston)
● 2018.1 Queens, Queens Pound river in the Souther Coast region of NSW (Australia)
● 2018.2 Rocky (British Columbia, Canada)

11. cloudops.com @cloudops_Page
History - Architecture @ Cactus
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Source: docs.openstack.org

12. cloudops.com @cloudops_Page
History - Architecture Now
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Source: docs.openstack.org

13. cloudops.com @cloudops_
High Level
at
High Speed

14. cloudops.com @cloudops_Page
OpenStack - Is NOT VMware
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15. cloudops.com @cloudops_Page
OpenStack - Is more an In-House AWS
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16. cloudops.com @cloudops_Page
OpenStack vs AWS
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Project Name Description AWS Equiv. Codename(s)
Compute
Provision and manage large pools of on-demand computing resources EC2 Nova
Block Storage Volumes on commodity storage gear, and drivers for turn-key block
storage solutions
EBS Cinder
Object Storage Petabytes of reliable storage on standard gear S3 Swift
Networking L2-focused on-demand networking with some L3 capabilities VPC Neutron
Dashboard Self-service, role-based web interface for users and administrators Console Horizon
Metering Centralized metering data for all services for integration to external
billing
CloudWatch Ceilometer
Identity Multi-tenant authentication system that ties to existing stores (e.g.
LDAP) and Image Service
IAM Keystone
Image Management Upload, download, and manage VM images for the compute service VM Import/Export Glance
Orchestration Application orchestration layer that runs on top of and manages
OpenStack Compute
CloudFormation,
CloudWatch
Heat

17. cloudops.com @cloudops_Page
OpenStack - Is NOT a Product
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18. cloudops.com @cloudops_Page
OpenStack - Is an AWESOME platform
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19. cloudops.com @cloudops_Page
OpenStack - High Level & High Speed
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20. cloudops.com @cloudops_
Let’s Talk Distros
OpenStack Overview

21. cloudops.com @cloudops_Page
OpenStack - Let’s Talk Distros
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22. cloudops.com @cloudops_
Core Services
OpenStack Overview

23. cloudops.com @cloudops_Page
OpenStack - Core Services
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OpenStack embraces a modular architecture to provide a set of core services that facilitates
scalability and elasticity as core design tenets.

24. cloudops.com @cloudops_Page
OpenStack - Core Services
24
Each service:
● Is also a “top-level” OpenStack component
● Has an elected “Project Technical Lead” (PTL)
● Has separate developers and design teams
● Has a well defined public API
○ With the exception of Horizon, which is the Web GUI, all other
projects have a RESTful (JSON/HTTP) API
● Has a separate database and an isolated persistent layer

25. cloudops.com @cloudops_Page
OpenStack Programs Relationships
25
Provides
Network connectivity
for
Image
Glance
Stores disk files in
Neutron
Network
Block Storage
Cinder
Provides
volumes for
Nova
Compute
Poll data from
Ceilometer
Metering
Poll data from
Poll data from
Object Storage
Swift
Stores images in
Heat
Orchestrate
Arranges and directsProvides
UI for
Provides
UI for
Provides
UI for
Provides
UI for
Provides
UI for
Provides
UI for
Provides
UI for
Common UI
Horizon
Dashboard
Keystone
Identity
Provides
Auth for
Provides
Auth for
Provides
Auth for
Provides
Auth for
Provides
Auth for
Access Control
Provides
Auth for
Provides
Auth for
Provides
UI for
Provides
Auth for
Not a program, but important
to understand the
relationship
Database
Not a program, but
important to understand
the relationship
Message Queue

26. cloudops.com @cloudops_Page
OpenStack Deployment Topology
26
Control Cluster
Horizon Keystone
GlanceNeutron
CinderNova
Compute Cluster
compute
node
compute
node
compute
node
compute
node
compute
node
compute
node
Storage Cluster (Cinder Volume, Swift)
storage
node
storage
node
storage
node
storage
node
storage
node
storage
node
Heavy CPU and RAM Heavy Disk and I/O
CeilometerHeat

27. cloudops.com @cloudops_
Keystone
Provides Identity, Token, Catalog and Policy services for use
specifically by projects in the OpenStack family
OpenStack Overview

28. cloudops.com @cloudops_
Nova API
A RESTful API web service which is used to interact with Nova
Compute
OpenStack Overview

29. cloudops.com @cloudops_
Nova Scheduler
A daemon, which determines, on which compute host the
request should run
OpenStack Overview

30. cloudops.com @cloudops_
Neutron
Network as a Service
OpenStack Overview

31. cloudops.com @cloudops_
Cinder
Block Storage as a Service
OpenStack Overview

32. cloudops.com @cloudops_
Glance
Provides services for discovering, registering, and retrieving
virtual machine images
OpenStack Overview

33. cloudops.com @cloudops_
Swift
Swift is a highly available, distributed, eventually consistent
object/blob store
OpenStack Overview

34. cloudops.com @cloudops_
Ceph
The all-in-one storage service that is not an OpenStack project
OpenStack Overview

35. cloudops.com @cloudops_
Ceilometer
The Telemetry Service
OpenStack Overview

36. cloudops.com @cloudops_
Heat
The Orchestrator
OpenStack Overview

37. cloudops.com @cloudops_
Horizon
Provides a baseline UI for managing OpenStack services
OpenStack Overview

38. cloudops.com @cloudops_
Magnum
Container Infrastructure Management Service
(Big Tent Project)
OpenStack Overview

39. cloudops.com @cloudops_
Dependencies
The bare minimum components outside of Openstack
OpenStack Overview

40. cloudops.com @cloudops_
Provisioning of a VM
The most common and complex process in OpenStack and
involves interaction of most of OpenStack components
OpenStack Overview

41. cloudops.com @cloudops_Page
OpenStack - Provisioning of a VM
41
● Users log into Horizon and initiate a VM create
● Keystone authorizes
● Nova API initiates provisioning and saves state to DB
● Nova Scheduler finds appropriate host
● Neutron configures networking
● Cinder provides block device
● Image URI is looked up through Glance
● Image is retrieved via Swift
● VM is rendered by Hypervisor
● VM now accessible by the users

42. cloudops.com @cloudops_
Deployment Tools
OpenStack Overview

43. cloudops.com @cloudops_Page
OpenStack - Deployment Tools
43
The deployment tools for OpenStack are like Baskin Robbins.
It’s a 31 flavors buffet.
● OpenStack Ansible
● Puppet / Chef / Salt OpenStack
● Fuel
● JuJu + Charms
● Triple-O / Kolla / OpenStack Helm / Conjur-Up / PackStack / DevStack ...

44. cloudops.com @cloudops_
What About That
Magical Thing
Called Kubernetes
OpenStack Overview

45. cloudops.com @cloudops_Page
OpenStack - Kubernetes
45
There are many ways to use Kubernetes when it comes to OpenStack. You can use it to deploy
OpenStack or you can use it within OpenStack. It’s been called the infrastructure club sandwich.
● K8s to deploy OpenStack
○ OpenStack Helm
○ Kolla
● K8s in OpenStack
○ Kubespray / OpenShift
○ Magnum / Rancher
○ KubeAdm

46. cloudops.com @cloudops_
What Else is Needed?
OpenStack Overview

47. cloudops.com @cloudops_Page
OpenStack - What else is needed?
47
You now have a shiny new OpenStack Cloud but beside spinning instances,
what can you do to maximize utilisation and ROI?
● CI/CD Systems
● External AAA (Authentication, Authorization, Accounting) Integration
● Logging, Monitoring and Alerting (Day 2)
● Plan WorkLoad Onboarding

48. cloudops.com @cloudops_Page
OpenStack - What else is needed?
48
● Workshops
○ Architecture Design Assessment
○ Knowledge leveling sessions
○ Hands-on labs
○ Day 2 troubleshooting scenarios
○ SDN and OpenStack
○ OpenStack and Containers
○ OpenStack and Ceph

49. cloudops.com @cloudops_Page 49

50. cloudops.com @cloudops_Page
Open Source Magic In OpenStack
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51. cloudops.com @cloudops_Page
Open Source is what makes OpenStack an AWESOME platform!
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52. OpenStack Days Canada
● October 19th 2017 - Nature Museum
● https://www.openstackcanada.com/

53. Reach out on Slack if you have more questions
http://openstack-canada-slack-invite.herokuapp.com/

54. cloudops.com @cloudops_
Thank you for your
time
sveronneau@cloudops.com
https://www.linkedin.com/in/stacyveronneau/
https://www.meetup.com/preview/Montreal-OpenStack