DevOps &
Continuous Delivery
Accelerating the delivery of value to the business
David Myers
February, 2013
Mobility, big data, analytics, social collaboration and cloud are creating
a new wave of business opportunities and IT challenges
Platforms
accelerates its reporting process
from 20 days to several hours
and cuts reporting costs by 50
percent
New Era
Analytics,
Mobile and
Social
Web, e-business
and SOA
Transactio
n Systems
Interconnected
Solutions
Action at real
time speeds
Multiple Applications
Some shared data
Dedicated Systems
Post Processing
in Warehouses
Single Database
Batch Processing
Managed one Solution
Time to Business Action
Processing
occurs NOW !!!
Business impact
visualized
Action taken
immediately
Strategic and
Tactical differentiator
Time
19602
1990-
2010-
New era systems integrate existing operational systems
with rapid delivery of new client-facing apps
Social, Local, Mobile
Smart Infrastructure Analytics
CRM
HR
Legacy
DB
ERP
Manage workloads
and maintain security
3
Rapid innovation
in the cloud
User experience and
mobile management
The need for continuous delivery
Significant pressure on business to:
 Innovate to create new business value
by employing cloud, mobile and social
channels and leveraging big data
- Systems of Engagement
 Integrate with transactional systems
- Systems of Record
 Balance speed with risk, compliance and quality
Continuously deliver software-driven innovation
and business value
4
Different application components
evolving at different speeds
Use the Pace-Layered Application Strategy to
Guide Your DevOps Strategy – Gartner, Oct 2012
Impact of evolving customer and market expectations
User Experience
Today
Emerging
Primary Workload Type
Systems of Record
(Transactional)
Systems of Engagement (+ Record)
Big Data, Analytics, Mobile/Social Channels
Delivery Model
Planned
Incremental (DevOps)
Development and Operations 100s and Costly
Team Sizes
10s with built-in DevOps automation
Release Frequency
Months to Years
Days to Weeks, based on business
opportunity
Integration Frequency
Weeks
Continuous
Infrastructure Deployment
Days
Minutes
Time to Value
Planned
Opportunistic
Operational Model
Systems Management
Built into application, Recovery Oriented
Computing, Continuous Availability
Service Sourcing
Develop
Consume and Assemble
(Public and Private)
6
Today IT leaders must balance the optimization of existing systems
and innovation through new engagement models
Optimization
• Focus on consolidation,
virtualization, cost cutting
• Align IT with needs of
the CFO
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Innovation
• Focus on mobile,
intelligent infrastructure,
rapid development
• Align IT with needs of
the CMO
So what is DevOps?
Dev + Ops
(Thank you…tip your waitress)
A way of re-integrating IT to deliver business value
faster and better
Siloed delivery challenges
Customers
Dev & Test
Teams
Line of Business
1st
Gap
Desire for fast
and continuous
innovation
Requirements
Addressed by...
Agile
Dev
Operations Team
2nd
Gap
Code & Tests
Business Services
Addressed by...
Dev
Ops
Agile is not enough…
Agile
Dev
Functional
Testing
Acceptance
Testing
Production
Operator
Setup
(weeks)
Install
Agile builds are piling up
Test and Ops teams have
increased pressures to keep up
with increased loads but continue
to use waterfall approaches and
traditional tools.
DevOps is…
A set of principles and values that
facilitate collaboration across
disciplines to…
People
1. Enable rapid evolution of
deployed business services
2. Reduce risk, decrease cost, and
improve quality
Process
Tools
DevOps Principles and Values
• Collaborate across disciplines
• Develop and test against a
production-like system
• Iterative and frequent
deployments using repeatable
and reliable processes
• Continuously monitor and validate
operational quality characteristics
• Amplify feedback loops
People
Process
Tools
How do we make this happen?
Automate everything
Track and
Plan
Version everything
Test everything
Track and Plan everything
Automate
Application
Artifacts
Application
Code
Dashboard
Runtime
Environment
Definition
Version
Instrumentation
and
Configuration
Instrument and Audit everything
Test
Dashboard everything
Instrument
and Audit
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Today’s landscape
Selective and siloed solutions limit visibility across people, process and tools
and create gaps in the delivery process
Line of
Business
Software
Development
Test
Operations
GAP
GAP
GAP
Poor
alignment
Manual
handoffs
Big
Bang
Release
• Portfolio
management
• Agile developer
tools
• Test infrastructure
automation
• Cloud,
virtualization
• Business process
management
• Build automation
• Test Management
• Continuous
integration
• Test Automation
• Infrastructure
provisioning
automation
• Big Data/Analytics
• App and
middleware
deployment
automation
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Challenges meeting market & business pressures with
quality software
Up to
4-6
41%
51%
45%
experience delays
in integration,
configuration and
testing of applications
applications rolled
back due to quality
issues escaping
into production
experience delays
due to troubleshooting
and fine-tuning issues
in production
Software
Development
Line
of Business
GAP
Test
GAP
Operations
GAP
3-4 Weeks
Weeks
to deliver a
simple change
average time
to isolate
a defect
15
Time is now for DevOps
Trends accelerating the need for Continuous Delivery
Business
Agility
Development and Test Cloud
Agile
Development
DevOps
Cloud
Computing
Production Cloud
Operational
Discipline
So what is Cloud Computing?
A user experience and a business model
Cloud computing is an emerging style of IT delivery in which applications, data, and IT
resources are rapidly provisioned and provided as standardized offerings to users over
the web in a flexible pricing model
An infrastructure management and services delivery methodology
Cloud computing is a way of managing large numbers of highly virtualized resources such
that, from a management perspective, they resemble a single large resource. This can then
be used to deliver services with elastic scaling
Service Consumers
Monitor & Manage
Services & Resources
Datacenter
Infrastructure
Access
Services
IT Cloud
Cloud
Administrator
Service Catalog,
Component
Library
Component Vendors/
Software Publishers
Publish & Update
Components,
Service Templates
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Traditional Dev - Ops Hand-off
Installation Instructions
RedHat Linux
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aliquip ex ea commodo consequat.
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Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est
laborum.
Apache Web Server
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doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore
veritatis et quasi architecto beatae vitae dicta sunt explicabo.
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dolore magnam aliquam quaerat voluptatem.
Python
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Provisioning using Cloud
#!/usr/bin/env ruby
class DevopsDeployer
def initialize(build_url, build_id)
@log = Logger.new(LOG_FILE)
@log.level = LOG_LEVEL
@iaas_gateway = IaasGateway.new(HsltProvider.new(),
LOG_FILE, LOG_LEVEL)
@server_instance = nil
.jsp
.html
rtc_build_system_provider = RtcBuildSystemProvider.new(
RTC_REPOSITORY_URL, RTC_USER_ID, RTC_PASSWORD_FILE)
@build = rtc_build_system_provider.resolve_build(
build_url, ENV['buildResultUUID'], build_id)
@build_system_gateway = BuildSystemGateway.new(
rtc_build_system_provider, LOG_FILE, LOG_LEVEL)
end
.java
def add_build_stamp
template_file = WEB_APP_ROOT +
"/app/templates/pages/page.html"
@log.info "Adding build ID stamp #{@build.id} to \
#{template_file}"
chef
# Read in the file's contents
as a string, replace
recipes
# the build_id, then overwrite the original contents
.sh
# of the file
text = File.read(template_file)
new_text = text.gsub(/\{\{ build_id \}\}/,
"<a href=\"#{@build.uri}\">#{@build.id}</a>")
File.open(template_file, "w") { |file|
file.puts new_text
}
end
Source Artifacts
# ...
Source Control
Management
Infrastructure
as Code
Delivery Pipeline Fundamentals
.jsp
.html
.java
.sh
Build,
Package,
& Unit Test
Application
Binaries &
Platform
Configuration
Deploy
chef
recipes
Source Artifacts
Source Control
Management
Deployable Artifacts
Library
Environment
Running System
Pattern of incremental adoption
Maturity
Build
Automation
Continuous
Integration
MultiPhase
Automated
Testing
Continuous
Deploy and
Release
DevOps Vision for Continuous Delivery
Systems of Record
Systems of Engagement
Application Release Management & Automation
Build
Test
Integration
Production
Business Owners
Customers
IaaS
PaaS
Continuous Delivery Pipeline:
An iterative set of quality checks and verifications that each piece of application
code must pass during lifecycle phases before being released to production.
Results using DevOps
Search Algorithm Release Process at Google
Release Process at Wealthfront
Release Automation at Etsy
Release Automation at flipkart
Examples from Etsy
2009
2012
6-14 hours
15 mins
“The deployment army”
1 person
Highly orchestrated and infrequent
Rapid release cycle
Special event – highly disruptive
Commonplace – happens so often we
cannot keep up
Blocked for 6-14 hours, plus minimum
of 6 hours for redeploy
Blocked for 15 minutes, next deploy
will only take 15 mins.
Release branch,
database schemas,
data transforms,
packaging,
rolling restarts,
cache purging,
scheduled downtime
Mainline,
minimal linking
and building,
rsync,
site up
Slow
Complex
Special
Fast
Simple
Common
http://www.slideshare.net/mikebrittain/continuous-delivery-the-dirty-details
30+ deploys a day…
• How do you build features so quickly?
o Software Deploy ≠ Product Launch
o Deploys frequently gated by config flags (canary releases)
o Validate in production, hidden from public.
• What’s in a deploy?
o Small incremental changes to the application
o New classes, methods, controllers
o Graphics, stylesheets, templates
o Copy/content changes
o Turning flags on/off, or ramping up
• Quickly responding to issues
o Security, bugs, traffic, load shedding,
o adding/removing infrastructure.
o Tweaking config flags or releasing patches.
• No Release Manager
Where to get more
information?
• Enterprise DevOps blog
o http://ibm.co/JrPVGR
• 6 Ways for Enterprises to Adopt DevOps blog
o http://ibm.co/xq71xY
• Pulse 2012 DevOps Interview
o http://ibm.co/OBqS2z
www.ibm.com/software/rational
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