1. OpenStack
Open Community & Open Cloud
Sponsored by:
& &
&

2. Let’s get started

3. Jaesuk Ahn
안 재석
安 宰奭
@songerie
bluejay@kt.com
bluejay.ahn@gmail.com

4. What is OpenStack?
OpenStack is a community of open source
developers, participating organizations and
users who are building and running the open
source cloud operating system.
Another definition …
“OpenStack is a Cloud Operating System,
that takes resources such as compute,
storage, network, virtualization technologies
and controls those resources at a data
center level”

5. OpenStack, A Kernel of the Cloud OS
Connects to apps via APIs Self-service Portals for users
USERS ADMINS
APPS
CLOUD OPERATING SYSTEM
Control & Automates Efficiently allocate resources
Pools of Resources
Compute Pool Storage Pool Network Pool
Virtualized Virtualized Virtualized
Servers Storage Networks

6. Open Source
Apache 2.0 license, NO ‘enterprise’ version
Open Design
Open Design Summit
Open Development
Anyone can involve development process
Open development management via Launchpad & Github
Open Community
OpenStack Foundation in 2012

7. In the beginning…

9. History

10. Now…

12. 133 Companies
1644 People
Systems Service
Hardware
Management Providers
Government Financial E-commerce
>50 M
Venture Capital

13. Openstack only exists on
the news article?

14. e-commerce / 8th Largest in the World
6000 VMs in Production
Sony Entertainment America
OpenStack Private Cloud
OpenStack-based Cloud Service
Currently, Private Beta
Private Cloud based on OpenStack
Public Cloud Service based
on OpenStack
Running Commercial Service
based on OpenStack Swift
Public Cloud Service based
on OpenStack

15. Who are developing it?

16. OpenStack Projects
More… (database, queue, …)

17. Core Projects
Compute (code-named “Nova”)
-open source software and standards for large-scale deployments of
automatically provisioned virtual compute instances.
Object Storage (code-named “Swift”)
-open source software and standards for large-scale, redundant storage of
static objects
Image Service (code-named “Glance”)
-provides discovery, registration, and delivery services for virtual disk
images.

18. OpenStack Incubated Projects
OpenStack Identity (code-named Keystone)
-The OpenStack Identity Service provides unified authentication across all
OpenStack projects and integrates with existing authentication systems
OpenStack Dashboard
-Dashboard enables administrators and users to access and provision cloud-
based resources through a self-service portal.

19. Nova (OpenStack Compute)
1. REST-based API
4. Hypervisor agnostic:
support for Xen ,Citrix
XenServer, Microsoft Hyper-V, 2. Horizontally and massively
KVM, UML, LXC and ESX scalable
3. Hardware agnostic: supports a variety of standard hardware

20. Nova Components

21. Nova Structure
(Shared-Nothing, Message-based)
nova- local method Auth Volume
manage Manager Controller Providing block
storage to VM
local method
Network Network
Controller management
API Server local method Cloud
OpenStack API Controller
EC2 호환 API Node
Scheduler
Scheduler Selection /
Scheduling
REST
HTTP to assign
VM
Object Compute
Euca2ools
Store Controller
Image / Template VM instance management
Store

22. Logical Structure
Image Service

23. Feature Benefit
Programmatically allocate IPs and VLANs VLANs
Manage Local Area Networks (LAN)
Flexible networking models to suit needs of each
- Flat, Flat DHCP, VLAN DHCP, IPv6 application and/or user group
API with rate limiting and authentication Designed for automation and security
Distributed and asynchronous architecture Massively scalable and highly available system
Live VM management (Instance) Increase productivity with lifecycle management
Run, reboot, suspend, resize, terminate instances
Create and manage Instance Types (Flavors) Build a menu of options for users to select from
Define sizes of VMs for CPU, RAM & Disk Flavors make it easy to size VMs for workloads
iSCSI storage volume management Enables data to be managed separate from VMs for fault-
Create, delete, attach and transfer volumes tolerance and added flexibility
Live migration of instances Minimize downtime with planned maintenance
Floating IP addresses Keep IPs & DNS correct when managing VMs
Flexibility to assign and control access to VM instances by
Security Groups
creating separation between resource pools
Role Based Access Control (RBAC) Ensure security by user, role and project

24. Example Architecture (Flat, Flat DHCP)
nova-api
LB
DB
nova-api (mysql)
nova
nova nova nova
Object
network scheduler volume
store
Storage
(Image,
Instance)
AMQP (Rabbitmq)
Internet
External
nova-compute
Internal
VM VM
WEB UI
Center
SERVER
Controller
(User Portal)

25. Example Architecture (vlan) nova-api
LB
nova-api
DB
(mysql)
nova
nova nova
Object
scheduler volume
store
Storage
AMQP (Rabbitmq) (Image,
nova Instance)
nova
network
nova
network
Internet nova
network
network
External
nova-compute
Internal
VM VM
WEB UI
Center
SERVER
Controller
(User Portal)

26. Swift (OpenStack Object Storage)
• Object Storage
• Simple storage service (GET, PUT, DELETE, COPY)
• Highly available, distributed, eventually consistent
object/blob store
• RESTful interface
• No object size limit
• 3+ replication factor in separate “zones”
• Scales horizontally, No central index.
• Stable and deployed in production

27. Swift main components
Auth

28. Glance (OpenStack Image Service)
• VM images and associated metadata
• Discover, register and retrieve
• Multiple disk formats :
raw, VHD, vmdk, vdi, qcow2, aki, ari, ami
• Multiple container formats:
ovf, bare, aki, ari, ami

29. Glance Structure
1. Store & retrieve VM images 2. REST-based API
3. Compatible with all common
4. Storage agnostic: image formats
Store images locally, or use
OpenStack Object Storage,
HTTP, or S3

30. Keystone (OpenStack Identity)
• Unified tenants / accounts for all services

31. Dashboard (OpenStack Web UI)
• Reference UI implementation
• Django module to build web UIs

32. Quantum (OpenStack Network-aaS)
Nova : virtual server
Quantum : virtual network
Both:
- Expose a logical API for automated provisioning by cloud tenants.
- Manage physical devices in the data center to implement the logical
model.
- Provide a “plugin” architecture to leverage support using different
back-end technologies.

33. Example Architecture
Dashboard /
Automation Tools
Tenant Tenant
API API
Quantum Quantum API Nova Service
Service
nova-scheduler nova-api
Quantum Plugin
Internal nova
Communication
Two Plugins Available: nova-compute
- Open vSwitch
- Cisco UCS/Nexus
vswitch
XenServer #1
Internal Plugin
Communication Hypervisor

34. Want to deploy “large” scale cloud?
Manually?
Really?
You need better way to deploy.

35. Bare Metal Provisioning
Software
Hardware Setting OS Setting Setting
clean
hardware Available
Hardware
Physical Setting MAC MAC or IP IP
↓ ↓ ↓
IP OS Image Role
Kickstart

36. Crowbar
(https://github.com/dellcloudedge/crowbar)
Crowbar has
scripts that install
the components
of OpenStack in a
proven pattern
that can be
customized after
the fact.

37. Crowbar Stage of Deployment
APIs, User Access,
 Includes all the components required to implement
& Ecosystem an entire cloud infrastructure including ecosystems
Partners partners
Ops Management
 Pluggable components deploy cloud infrastructure.
Dell “Crowbar”
Cloud
 Allow for addition of Dell IP and expansion by the
Infrastructure &
Dell IP Extensions community services and customers
 Can integrate with Dell existing products
Core Components &  Delivers basic data center services and required
Operating Systems cloud infrastructure.
 Provision bare-metal servers from box to cloud
WITHOUT user intervention (other than
Physical Resources racking/cabling and some minimal configuration
questions) NOT EXCLUSIVE TO DELL HARDWARE

39. Global Community
General Information: http://openstack.org
Developers & Testers
http://launchpad.net/openstack
http://wiki.openstack.org
Writers: http://wiki.openstack.org/Documentation
Blog: http://openstack.org/blog
Twitter: http://twitter.com/openstack
Jobs: http://openstack.org/jobs

40. OpenStack Community in Korea
‣ http://www.openstack.or.kr
‣ http://wiki.openstack.or.kr
‣ http://www.facebook.com/groups/openstack.kr/

41. Thank you.
감사합니다
谢谢
ありがとうございます
and.. Question?