Sirius Madness presentation by Tony Pittman. "Can I Move My Stuff to OpenStack?"

1. Can I Move My Stuff To OpenStack?
Intro to OpenStack
Comparing OpenStack to VMware and Hyper-V
http://tpittman.wordpress.comTony Pittman @pittmantony

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Agenda
• Introduction
• What is OpenStack?
• Comparing to VMware and Hyper-V
• Where does OpenStack fit?
• What else is out there?
• Questions
• Closing

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What is OpenStack?
• Collection of projects
• Open source
• Open standards
• AWS-style Infrastructure-as-a-Service (IaaS) private or
public cloud

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Who is OpenStack for?
• Institutions and service providers with physical
hardware that they'd like to use for large-scale cloud
deployments
• Companies who have specific requirements which
prevent them from running in a public cloud
• OpenStack is probably not something that the average
business would consider deploying themselves yet.
-- from FAQ on openstack.org

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OpenStack Releases and Projects
• New Release twice a year
• Each Release specifies a version of each project
• Each Project is developed separately
• Projects updated constantly, between Releases

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OpenStack Releases
• Releases named after cities, kinda
• Alphabetical order
• Kilo – Security-supported
• Liberty – Security-supported
• Mitaka – Current stable release - as of April 7
• Newton – Under Development – design in Austin 2 weeks ago
• Ocata - Future

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OpenStack Core Projects
Nova
Compute
Neutron
Software defined
networking
Keystone
Identity
management
Cinder
Block based
storage
Glance
Image repository
(templates)
Swift
Object based
storage

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OpenStack Core Projects

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Nova
• This is the compute layer
• Terminology:
• Node = physical group of resources, usually 1 host
• Host Aggregate = group of similar resources, in VMware terms a
“cluster”, Instances are deployed onto Host Aggregates.
• Availability zone = logical segregation for physical isolation or
redundancy
• Instance = Virtual machine
• Flavor = predefined size of VM

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Nova - Flavors
Name Virtual cores Memory Disk Ephemeral
m1.tiny 1 512 MB 1 GB 0 GB
m1.small 1 2 GB 10 GB 20 GB
m1.medium 2 4 GB 10 GB 40 GB
m1.large 4 8 GB 10 GB 80 GB
m1.xlarge 8 16 GB 10 GB 160 GB

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Nova
• Usually based on KVM as a hypervisor.
• A Nova node = Single KVM host
• This is “bread and butter” OpenStack
• When people think about “Replacing VMware”, this is
usually what they’re thinking about

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Nova
Supports others, including
vSphere
Nova node = vSphere cluster
Hyper-V
Nova node = Hyper-V host
XenServer

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Neutron
• Software Defined Networking
• Similar to VMware NSX
• NOT similar to Cisco ACI
• Based on VXLAN
• Was very unstable a couple years ago, got a re-write, now
pretty good

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Neutron
• Fixed IP gets assigned to each instance when instance is
created
• The rest of the network is unaware of this subnet and these IP’s
• Floating IP gets assigned to an instance if needed
• Instance is unaware of this IP
• NAT is used to map these together
• NLB through LBaaS functionality

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Storage
• Ephemeral storage
• Accessible from within the VM, deleted when VM is terminated
• Swift (object)
• Accessible anywhere via API
• Cinder (block)
• Accessible from within the VM, as a block device
• Storage mfg write their own Cinder drivers
• These are used in things like EMC VIPR Controller

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Keystone and Glance
• Keystone manages user identities
• Glance is the image repository, like Templates in VMware

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OpenStack Optional Projects
Horizon
Management
Heat
Orchestration
Ironic
Bare metal
deployment
Manila
File Storage
Ceilometer
Telemetry
7 others

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Additional considerations
• Blueprints / workflows
• Python & API’s
• NAT defined world
• DNS
• RDP/SSH and remote mgmt. tools

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Comparing to VMware and Hyper-V
VMware & Hyper-V
• Designed to run unique
OS instances
• Operate like traditional
open systems
environment
• Humans, installing OS’s
from a pretty GUI
OpenStack
• Designed to run generic,
disposable OS instances
• Deploy instances
programmatically
• Orchestration workflows
deploy OS’s that need
little human interaction

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Comparing to VMware and Hyper-V
• Not really designed for Windows support
• Not many environments running Windows VM’s on OpenStack
• That means not much knowledge out there about Windows on
OpenStack
• No Windows cluster support
• Don’t expect good high-availability options
• Use vSphere as the Nova hypervisor if HA is needed
(but in that case, why not vRA instead of OpenStack?)
• These two things rule out OpenStack for most customers

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So then, where does it fit?

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Where does OpenStack fit?
• Institutions and service providers with physical
hardware that they'd like to use for large-scale cloud
deployments
• Companies who have specific requirements which
prevent them from running in a public cloud
• OpenStack is probably not something that the average
business would consider deploying themselves yet.
-- from FAQ on openstack.org

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Where does OpenStack fit?
• Organizations with application development teams
• Developing cloud native apps primarily on Linux
• Need to run apps on-premises
• Want to empower their developers
• Want Infrastructure as a Service (VM granularity, in
contrast to containers or baremetal)

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What Else Is Out There?
• Public cloud
• If considering OpenStack, it’s an on-premises version of AWS /
Azure / Google Cloud Platform
• When considering next platforms:
• 3rd platform / webscale / cloud native
• Containers
• Lighter than VM’s
• If considering OpenStack, could make more sense to go Containers
• 2017 this session might be about Docker instead

25. OpenStack Summit
Austin, TX
April 2016

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Major manufacturers involved
• Redhat
• RackSpace – helped found OpenStack, with NASA
• Mirantis
• Intel

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Gartner Keynote

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Gartner Keynote

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Large Service Providers
• AT&T
• Verizon
• Ericsson
• Lots of discussion around NFV and OPNFV

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What do you need to get started?
“An enthusiastic sysadmin, an anchor
tenant, and metrics to measure success
against”

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Containers and Bare Metal
Lots of focus on using OpenStack for:
• IaaS for containers and/or PaaS
• Baremetal deployment via Ironic, for PaaS or containers

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Article on TechReckoning :
1. If you haven't at least dipped your toes into
OpenStack yet, then it's not for you right now.
2. I still wonder, however, if OpenStack is
solving 2010's problem, not 2020's.
TechReckoning article

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Questions?

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THANK YOU