osdc 2015: nigel kersten | in defense of data centers
TRANSCRIPT
In Defense of Data Centers OSDC - April 2015.Nigel Kersten @nigelkersten CIO, Puppet Labs
Who am I?• Not here as a vendor • Not selling you anything • I’m a user too
Audience PollWho are you all?
The Cloud is fine
The Cloud is Fine
Undeniable advantages
The Cloud is Fine
Undeniable advantages
The cloud is just other people’s servers
I’m not a cloud skeptic
“Global SaaS software revenues are forecasted to reach $106B in 2016, increasing 21% over projected 2015 spending levels” — Forrester
“By 2018, 59% of the total cloud workloads will be Software-as-a-Service (SaaS) workloads, up from 41% in 2013” — Cisco Global Cloud Index
“42% of IT decision makers are planning to increase spending on cloud computing in 2015, with the greatest growth in enterprises with over 1,000 employees (52%)” — Computerworld 2015 Forecast
More than hype — people aren’t that stupid
Traditional arguments against Cloud
Lack of control
Vendor lock-in
Performance
Cost
Security
The choice isn’t binary
Diversity is GoodInnovation and monocultures
The features are convenient
On-Demand
Self-Service
Elastic
Consumption-based pricing
Constraints Force Changes in Behavior
Behavior changes enable innovation
So much Innovation
Design is about reducing choice(on behalf of the user)
on behalf of the user
Under-engineered constraints
Unreliable
Lack of control
Worse performance
Isolated from on-premise
Unreliable
The cloud doesn’t care
Lack of control
“Insecure”
Affordances <—> Flexibility
Forced changes in operations
Developers don’t need your approval
They have APIs and tools
Infrastructure is programmable
API-driven rather than CLI/GUI-driven
Architect for resilience
What is a data center these days?
It’s not just about racking and stacking — more than raw infrastructure
You don’t have to be huge for it to make sense
Public Cloud Interconnects
Move to where your users are
Software Defined Data Center
More than just another annoying buzzword
Infrastructure vendors are changing
Automation is key
Lots of exciting open-source software out there
It’s not just about automation toolsOur operations processes and atttitudes need to change
It’s not just about automation toolsOur operations processes and atttitudes need to change
Call it “Devops” if you want
It’s not just about automation toolsOur operations processes and atttitudes need to change
Call it “Devops” if you want
or “Agile”
It’s not just about automation toolsOur operations processes and atttitudes need to change
Call it “Devops” if you want
or “Agile”
or “how we’ve always done it”
But automation is still keyDemand it from all your vendors
Relinquish control, not responsibility
Enable your users
Design self-service infrastructure
Design for resilience
Servers — Cattle, not Pets
Expect failure
It’s all disaster recovery
Small Components
Lots of exciting open-source software out there
Thanks — Questions?