T-DOSE 2010 - Agile Enterprise, CLouds and Devops

John Willis
VP of Services
john@opscode.com
twitter.com/botchagalupe

Copyright © 2010 Opscode, Inc - All Rights Reserved 1
Saturday, November 6, 2010

IT Management Podcast
DevopsCafe
CloudCafe

The Agile Enterprise
Cloud and Devops


Industrial
Cambrian Revolution
Explosion


Hierarchy Theory

“The rate of evolution of
any system is dependent
upon the organisation of
its subsystems”

Herbert Simon, Theory of
Hierarchy and componentisation.


A Parable of Two Watch Makers


A Parable of Two Watch Makers

•Technological evolution (and
revolution).

•Introductions of new products
•Strong and unpredictable
ﬂuctuations of the demand.


A Period of Combinatorial
Innovation


Innovation

• Abstract and fault tolerant
components


Innovation

components

• Integrated network accessible
services


Innovation

components

• Integrated network accessible
services

• Unlimited infrastructure


Agile Infrastructure

• Operating at Cloud Scale
• Ephemeral Infrastructure
• Frictionless Infrastructure
• Self Service Operations


Agile Operations

• Products not Projects
• Walk on Walk off Projects
• Velocity of Innovation
• Continuos Delivery
• Enterprise Lean Startup


Devops


Devops: Why Should You Care?

Short Answer:

It’s a way to
make your
business
more agile


Devops: Why Should You Care?

Short Answer:
Rut Ro
It’s a way to
rit’s rabout ra
business
make your
rupid
business
more agile


Devops is a cultural and
professional movement!


IT Anti-Pattern

Wall of Confusion
Dev Ops

Ah-ha! Ka-ching!


vO ps
Dev De Ops

Wa l l of onfus i on
C


Devops is About Velocity


Culture
Automation
Measurement
Sharing

So

What’s
Your
Culture
Dog

Culture Before Tools

• Leadership
• Behavior
• Communication
• Passion
• Having Fun


Leadership


Leadership

Devs Ops

Behavior


Communication


Passion


Have Fun!


Cloudy Operations and Devops


Till the Meatball Hits
the Fan


Till the Meatball Hits
the Fan

I did not have “cloudy”
meatballs with that providerCopyright © 2010 Opscode, Inc - All Rights Reserved 32

Automa4on


Fully
Automated Infrastructure
Control Provisioning Release
Orchestration Deploy CI Server Issue tracker

Artifact
Config repository
Dispatcher SCM
management Build
Repository

OS boot/
Scheduler install

Code Workflows

Model Resources Configuration
Events Trending
Asset
Identity
inventory
Trending Reporting Topology

Host naming CMDB
Monitoring Sources

What Do
Developers
Want?


For Developers...

• Self Service Operations
• The infrastructure is the application
(and vice versa)

• Minimize Bottlenecks
• The “Right” Tools


What Does
Operations Want?


Operations
• Say “Yes”.
• You never liked rack
and stack that much
anyway.

• You have never
been more critical.

• Just get out of the
way.
http://covers.oreilly.com/images/9780596007836/lrg.jpg


Automate Everything

• Integration
• Builds
• Tests
• Deploys
• Orchestration

Infrastructure as Code

http://www.ﬂickr.com/photos/asten/2159525309/sizes/l/



‣ Version control




‣ Version control
‣ Process control




‣ Version control
‣ Process control
‣ Application control



A Tornado Hits Your Data

http://www.ﬂickr.com/photos/gi/518613153/sizes/o/



• Pause your movie




• Sign into your cloud provider




• Download your offsite backups




• Provision, conﬁg and integrate the new servers




• Change DNS to point to “Hit by Tornado” page




• Restore the customer and application data




• Remove the “Hit by Tornado” page



• Unpause movie http://www.ﬂickr.com/photos/gi/518613153/sizes/o/



• Chapter 5
Sign into your cloud provider
Infrastructure
as Code
• Provision, conﬁg and Jacob the new servers
Adam integrate
• Unpause movie http://www.ﬂickr.com/photos/gi/518613153/sizes/o/


In a Cloudy World
Your Prime Constraint Should Be

http://www.ﬂickr.com/photos/visualage/2126833132/sizes/o/


In a Cloudy World
Your Prime Constraint Should Be

The time it
takes to
restore your
application
data

http://www.ﬂickr.com/photos/visualage/2126833132/sizes/o/


Cloudy Conﬁguration
Management


Management
Provisioning


Management
Provisioning
Conﬁguration


Management
Provisioning
Conﬁguration
Systems Integration

Conﬁguration Management

Roles

loadbalancer
webserver
dbmaster
dbslave


Systems Integration

Load Balancer
Recipes

haproxy Web Server Web Server

apache2
myssql DB Master

DB Slave DB Slave

Disk Disk Disk


Role Based Conﬁguration
name "webserver"
description "Systems that serve HTTP traffic"

run_list(
"role[base]",
"recipe[apache2]",
"recipe[apache2::mod_ssl]"
)

default_attributes(
"apache" => {
"listen_ports" => [ "80", "443" ]
}
)
override_attributes(
"apache" => {
"max_children" => "50"
}
}
}

name "webserver"

run_list(
"role[base]",
"recipe[apache2]",
)

default_attributes( opsws01
"apache" => {
"listen_ports" => [ "80", "443" ]
}
)
"apache" => {
}
}
}

name "webserver"

run_list(
"role[base]",
"recipe[apache2]",
)

default_attributes( opsws01 opsws02
"apache" => {
"listen_ports" => [ "80", "443" ]
}
)
"apache" => {
}
}
}

Systems Integration

•


Fully Automated Infrastructure
Provisioning Conﬁguration Integration

Load Balancer

Web Server Web Server

DB Master

DB Slave DB Slave

Disk Disk Disk


Infrastructure as Data



Discoverable Data



Using a Search API

•


Using a Search API
Text

•


Using a Search API
Text

Text
•


http://www.brooklynstreetart.com/theBlog/wp-content/uploads/2008/12/swedish_chef_bork-sleeper-cell.jpg

Non Discoverable Data



Non Discoverable Data
Load Balancer

Web Server Web Server

DB Master

DB Slave DB Slave

Disk Disk Disk



http://www.brooklynstreetart.com/theBlog/wp-content/uploads/2008/12/swedish_chef_bork-sleeper-cell.jpg

Measurement
Metrics

Measure Everything
• Performance Metrics
• Process Data
• People Data
• Heuristics


Continuos Improvement


Old School is Still Cool

• Change
• Incident
• TTR/TTD


Sharing


Anti-Pattern:

Thinking that
secrecy
makes you
better


Share Everything
• Share Metrics
• Share Ideas
• Share Stories
• Give Developers Access
• Allow Operations to Leverage


P

Be bold-and
mighty forces
will come to
your aid
Basil King


Case Studies


Homework...
1. Web Operations (John Allspaw)
1. Lean Startup (Eric Ries)
2. Continuous Deployment (Jez Humble)
2. Agile Planning (Scrum, Kanban)
3. Test Driven Development / Operations

Extra Credit:
5. DevOps Cafe Podcast (DevOpsCafe.org)
6. Follow me on Twitter (@botchagalupe)


T-DOSE 2010 - Agile Enterprise, CLouds and Devops

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