introduction to continuous delivery · 2017-12-06 · continuous delivery frequent releases dev ops...
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Continuous Delivery
Graham Brooksgbrooks@thoughtworks.com
Twitter: @grahamcbrooksBlog: http://www.grahambrooks.com/blog
Introduction to
Thursday, March 28, 13
Agile
Iteration 0 1 2 3 4
Analysis + Design
Development
Testing + Showcase
Integration + QA Release and operation
Customer
Centralized QA IT Operations
"Agile" team
The "last mile"
Thursday, March 28, 13
Agile
Iteration 0 1 2 3 4
Analysis + Design
Development
Testing + Showcase
Integration + QA Release and operation
Customer
Centralized QA IT Operations
"Agile" team
The "last mile"
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disrupting traditional businesses
http://code.flickr.com/
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Building the right thing
every business idea is a hypothesis until you get user feedback
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How often features are used
0 12.5 25 37.5 50
Never
Rarely
Sometimes
Often
Always
Source: Standish Group
45%NEVER USED
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releasing frequently
feedback from usersCustomer
developent
Agile productdevelopment
Eric Ries, “The Lean Startup” http://bit.ly/8ZoX5F
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releasing frequently
feedback from usersreduce risk of release
John Allspaw: “Ops Metametrics” http://slidesha.re/dsSZIr
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releasing frequently
feedback from usersreduce risk of releasereal project progress
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Agile Manifesto
Our highest priority is to satisfy the customer through early and continuous delivery of valuable software
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Production-ready Software
Fast, automated feedback on the production readiness of your applications every time there is a change - to code, infrastructure, or configuration
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Continuous Delivery
Customer
Delivery teamConstant flow of new features into production
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Software always production ready
Continuous Delivery
Customer
Delivery teamConstant flow of new features into production
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Software always production ready
Releases tied to business needs, not operational constraints
Continuous Delivery
Customer
Delivery teamConstant flow of new features into production
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CD OverviewContinuous Delivery
Dev OpsFrequent Releases
Automated Testing
Test Strategy
TDD/BDD
Product Support
Pipelines
Continuous Integration
Automaation
Lean Operations
Infrastructure as Code
Configuration Management
Monitoring & Metrics
Kanban for Ops
Lean ITIL
Private Cloud
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value stream mapping
Product opportunity assessment
Product discovery Development Final testing
and approval ReleaseProduct
planning and estimation
Elapsed time
Value-added time3 days 1 week 10 days 7 weeks 1 week 2
hours
1 week 10 days 3 days 5 days 2 days
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deployment pipeline
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an automated implementation of your system’s build, deploy, test, release process
deployment pipeline
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visibility
an automated implementation of your system’s build, deploy, test, release process
deployment pipeline
Thursday, March 28, 13
visibility
an automated implementation of your system’s build, deploy, test, release process
feedback
deployment pipeline
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visibility
an automated implementation of your system’s build, deploy, test, release process
control
feedback
deployment pipeline
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deployment pipelineDelivery team Version control Build & unit
testsAutomated
acceptance testsUser acceptance
testsRelease
Check in
Feedback
Trigger
Check in
Feedback
Trigger
Trigger
Check inTrigger
Trigger
ApprovalApproval
Feedback
Feedback
FeedbackFeedback
Thursday, March 28, 13
deployment pipelineDelivery team Version control Build & unit
testsAutomated
acceptance testsUser acceptance
testsRelease
Check in
Feedback
Trigger
Check in
Feedback
Trigger
Trigger
Check inTrigger
Trigger
ApprovalApproval
Feedback
Feedback
FeedbackFeedback
Thursday, March 28, 13
deployment pipelineDelivery team Version control Build & unit
testsAutomated
acceptance testsUser acceptance
testsRelease
Check in
Feedback
Trigger
Check in
Feedback
Trigger
Trigger
Check inTrigger
Trigger
ApprovalApproval
Feedback
Feedback
FeedbackFeedback
Thursday, March 28, 13
deployment pipelineDelivery team Version control Build & unit
testsAutomated
acceptance testsUser acceptance
testsRelease
Check in
Feedback
Trigger
Check in
Feedback
Trigger
Trigger
Check inTrigger
Trigger
ApprovalApproval
Feedback
Feedback
FeedbackFeedback
Thursday, March 28, 13
Commit Stage
Compile
Unit Test
Unit Test
Build Installers
Acceptance Test Stage
Acceptance Test
User Acceptance Stage
Exploritory
Usability
Performance Stage
Performance
Stability Testing
Production
Production Readiness
Production Like
Production Readiness
Production Like
Production Readiness
Production Like
Production Readiness
Production Like
Feedback
Deployment Pipeline
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Commit Stage
Compile
Unit Test
Unit Test
Build Installers
Acceptance Test Stage
Acceptance Test
User Acceptance Stage
Exploritory
Usability
Performance Stage
Performance
Stability Testing
Production
Production Readiness
Production Like
Production Readiness
Production Like
Production Readiness
Production Like
Production Readiness
Production Like
Feedback
Deployment Pipeline
Thursday, March 28, 13
Commit Stage
Compile
Unit Test
Unit Test
Build Installers
Acceptance Test Stage
Acceptance Test
User Acceptance Stage
Exploritory
Usability
Performance Stage
Performance
Stability Testing
Production
Production Readiness
Production Like
Production Readiness
Production Like
Production Readiness
Production Like
Production Readiness
Production Like
Feedback
Deployment Pipeline
Thursday, March 28, 13
Commit Stage
Compile
Unit Test
Unit Test
Build Installers
Acceptance Test Stage
Acceptance Test
User Acceptance Stage
Exploritory
Usability
Performance Stage
Performance
Stability Testing
Production
Production Readiness
Production Like
Production Readiness
Production Like
Production Readiness
Production Like
Production Readiness
Production Like
Feedback
Deployment Pipeline
Thursday, March 28, 13
Commit Stage
Compile
Unit Test
Unit Test
Build Installers
Acceptance Test Stage
Acceptance Test
User Acceptance Stage
Exploritory
Usability
Performance Stage
Performance
Stability Testing
Production
Production Readiness
Production Like
Production Readiness
Production Like
Production Readiness
Production Like
Production Readiness
Production Like
Feedback
Deployment Pipeline
Thursday, March 28, 13
Commit Stage
Compile
Unit Test
Unit Test
Build Installers
Acceptance Test Stage
Acceptance Test
User Acceptance Stage
Exploritory
Usability
Performance Stage
Performance
Stability Testing
Production
Production Readiness
Production Like
Production Readiness
Production Like
Production Readiness
Production Like
Production Readiness
Production Like
Feedback
Deployment Pipeline
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Deployment Pipeline
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Principles
• create a repeatable, reliable process for releasing software
• automate almost everything
• keep everything in version control
• if it hurts, do it more often, and bring the pain forward
• build quality in
• done means released
• everybody is responsible for delivery
• continuous improvement
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Ask this question:-
• “How long would it take your organization to deploy a change that involved just one single line of code? Do you do this on a repeatable, reliable basis?”
• What gets in the way of getting software out of the door?
Mary and Tom Poppendieck, Implementing Lean Software Development, p59.
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Practices
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only build your binaries once
Practices
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only build your binaries once
deploy the same way to every environment
Practices
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smoke test your deployments
only build your binaries once
deploy the same way to every environment
Practices
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smoke test your deployments
only build your binaries once
deploy the same way to every environment
keep your environments similar
Practices
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smoke test your deployments
only build your binaries once
deploy the same way to every environment
if anything fails, stop the line
keep your environments similar
Practices
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Continuous IntegrationP1 P2
G2 G3G1 G4
P3 P4 P5
G5 G6
B1 B2
G1
G1
P1
P1B1
P2
B1
P1-2
G2
G2
P3
G2
P3
B2
P4
B2
G3
P3G3
G3
P4
P4 P5
P4-5
G4
G4 G5 G6
P2
Professor Plum
Reverend Green
Mainline
Diagram invented by Martin Fowler
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everybody checks in to mainline
Continuous IntegrationP1 P2
G2 G3G1 G4
P3 P4 P5
G5 G6
B1 B2
G1
G1
P1
P1B1
P2
B1
P1-2
G2
G2
P3
G2
P3
B2
P4
B2
G3
P3G3
G3
P4
P4 P5
P4-5
G4
G4 G5 G6
P2
Professor Plum
Reverend Green
Mainline
Diagram invented by Martin Fowler
Thursday, March 28, 13
everybody checks in to mainline
use branch by abstraction for architectural change
Continuous IntegrationP1 P2
G2 G3G1 G4
P3 P4 P5
G5 G6
B1 B2
G1
G1
P1
P1B1
P2
B1
P1-2
G2
G2
P3
G2
P3
B2
P4
B2
G3
P3G3
G3
P4
P4 P5
P4-5
G4
G4 G5 G6
P2
Professor Plum
Reverend Green
Mainline
Diagram invented by Martin Fowler
Thursday, March 28, 13
everybody checks in to mainline
use branch by abstraction for architectural change
use feature bits to switch off incomplete features
Continuous IntegrationP1 P2
G2 G3G1 G4
P3 P4 P5
G5 G6
B1 B2
G1
G1
P1
P1B1
P2
B1
P1-2
G2
G2
P3
G2
P3
B2
P4
B2
G3
P3G3
G3
P4
P4 P5
P4-5
G4
G4 G5 G6
P2
Professor Plum
Reverend Green
Mainline
Diagram invented by Martin Fowler
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different kinds of testing
Functional acceptance tests
ShowcasesUsability testing
Exploratory testing
Unit testsIntegration tests
System tests
Non-functional acceptance tests
(performance, scaling, ...)
Business facing
Technology facing
Critiq
ue p
roje
ct
Support
pro
gra
mm
ing
AUTOMATED
AUTOMATED
MANUAL
MANUAL / AUTOMATED
Diagram invented by Brian Marick
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Blue Green Testing
Web Server
Blue Slice
Green Slice
RouterUsers
Application Server
Blue Slice
Green Slice
Database Server
Blue Database
Green Database
1.0
1.0
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Blue Green Testing
Web Server
Blue Slice
Green Slice
RouterUsers
Application Server
Blue Slice
Green Slice
Database Server
Blue Database
Green Database
1.0
1.1
Thursday, March 28, 13
Blue Green Testing
Web Server
Blue Slice
Green Slice
RouterUsers
Application Server
Blue Slice
Green Slice
Database Server
Blue Database
Green Database
1.0
1.1
Thursday, March 28, 13
Blue Green Testing
Web Server
Blue Slice
Green Slice
RouterUsers
Application Server
Blue Slice
Green Slice
Database Server
Blue Database
Green Database
1.0
1.1
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Canary Releases
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Data Migration
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Objections
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Visibility and control over locking down
Objections
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Visibility and control over locking down
Compliance - automation over documentation
Objections
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Auditing - see who does what
Visibility and control over locking down
Compliance - automation over documentation
Objections
Thursday, March 28, 13
Auditing - see who does what
Visibility and control over locking down
Compliance - automation over documentation
Make it easy to remediate outages
Objections
Thursday, March 28, 13
Auditing - see who does what
Visibility and control over locking down
Compliance - automation over documentation
Make it easy to remediate outages
Objections
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People are the key
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Get everyone together at the beginning
People are the key
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Get everyone together at the beginning
Keep meeting
People are the key
Thursday, March 28, 13
Make it easy for everyone to see what’s happening
Get everyone together at the beginning
Keep meeting
People are the key
Thursday, March 28, 13
Make it easy for everyone to see what’s happening
Get everyone together at the beginning
Keep meeting
Continuous improvement (kaizen)
People are the key
Thursday, March 28, 13
Make it easy for everyone to see what’s happening
Get everyone together at the beginning
Keep meeting
Continuous improvement (kaizen)
People are the key
Thursday, March 28, 13
http://continuousdelivery.com/http://studios.thoughtworks.com/gohttp://thoughtworks.com/http://www.thoughtworks.com/continuous-deliveryhttp://bit.ly/pAkM6B Jeffery Hammond Forrester Consulting
Thank YouGraham Brooks
gbrooks@thoughtworks.comTwitter: @grahamcbrooks
Blog: http://www.grahambrooks.com/blog
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