continuous delivery - jfokus...continuous delivery and zero downtime axel fontaine @axelfontaine...
TRANSCRIPT
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Continuous Delivery
and Zero Downtime
AXEL FONTAINE@axelfontaine
axelfontaine.com
Entrepreneur - Public Speaker - Continuous Delivery Expert
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AXEL FONTAINE@axelfontaine
axelfontaine.com
Entrepreneur - Public Speaker - Continuous Delivery Expert
flywaydb.org getphoton.com
photon
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about
questions
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GOAL
Fully automated deploymentof a complete application
into productionmultiple times a daywith zero downtime
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Puttingthingsinto
PERSPECTIVE
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http://digitalcitizen.ca/2009/06/22/simpsons-profile-pics-for-facebook-and-other-applications/
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CONTINUOUS
DELIVERY
http://www.flickr.com/photos/kamshots/3096111340/
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stackoverflow.com
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stackoverflow.com
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stackoverflow.com
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stackoverflow.com
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Prerequisites
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Processhttp://www.flickr.com/photos/feffef/460299390/in/photostream/
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Processhttp://www.flickr.com/photos/feffef/460299390/in/photostream/
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Build
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Build
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Version Control
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Version Control
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Testhttp://www.flickr.com/photos/vitorcastillo/2994723741/
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Testhttp://www.flickr.com/photos/vitorcastillo/2994723741/
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Build
DEV
SmallTests
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Build
DEV
SmallTests
MediumTests
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Build
DEV
SmallTests
MediumTests
LargeTests
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VersionControl
Build Build
DEV ContinuousIntegration
SmallTests
MediumTests
LargeTests
SmallTests
MediumTests
LargeTests
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DEPLOYMENTautomation
http://www.flickr.com/photos/soldiersmediacenter/3650607959/
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do
NOT
deploy
SNAPSHOTS !
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VersionControl
Build Build Release
DEV Continuous Integration
SmallTests
MediumTests
LargeTests
SmallTests
MediumTests
LargeTests
Artifact Repository
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DB DeltaCode Configuration
What gets deployed?
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Code
DeploymentPackage
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Code
DeploymentPackage
DeploymentScript
backupstopinstallstart…
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Code
DeploymentPackage
DeploymentScript
backupstopinstallstart…
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Release
Continuous Integration
Artifact Repository
Target
DeploymentScript
backupstopinstallstart…
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Configuration
DeploymentPackage
Code
Maybe it could change one day ≠ Environments
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Code
DeploymentPackage
?Environment Detection
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Code
Auto-Configuration
TestEnvironment
Detection
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Release
Continuous Integration
Artifact Repository
Target
DeploymentScript
backupstopinstallstart…
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DB Delta
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The Fearof
DDL
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VS
DML DDL
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Name Balance
Homer 163
Marge 214
Bart 9
Lisa 25
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VS
DML DDL
Name Balance
Homer 0
Marge 0
Bart 0
Lisa 0
Name
Homer
Marge
Bart
Lisa
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DB Delta
Code
DeploymentPackage
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Code
DeploymentPackage
DB?
?
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flywaydb.org
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Release
Continuous Integration
Artifact Repository
Target
DeploymentScript
backupstopinstallstart…
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Registration
MailService
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Registration
MailService
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Registrationv2
MailService
ParcelService
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Registration
MailService
Feature TogglesBranch by Abstraction
ParcelService
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Registration
MailService
ParcelService
Feature TogglesBranch by Abstraction
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DB
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DB
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DB
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DB
State ManagementBlue/Green Deployments
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Surname Last_Name
ALTER TABLE … RENAME COLUMN
Surname
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Last_Name Last_Name
Last_NameSurname
ALTER TABLE …ADD COLUMN Last_Name
CREATE TRIGGER …UPDATE … SET Last_Name = Surname
DROP TRIGGER …ALTER TABLE …
DROP COLUMN Surname
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Last_Name
Last_Name
DROP TRIGGER …ALTER TABLE …
DROP COLUMN Surname
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Summary
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VersionControl
Build Build Release
DEV Continuous Integration
SmallTests
MediumTests
LargeTests
SmallTests
MediumTests
LargeTests
Artifact Repository
Target
DeploymentScript
backupstopinstallstart…
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http://de.wikipedia.org/wiki/Datei:Yemen_Chameleon.jpg
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One more thing
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Further reading:
http://axelfontaine.com/blog/final-nail.html
http://axelfontaine.com/blog/environment-detection.html
http://martinfowler.com/bliki/FeatureToggle.html
http://googletesting.blogspot.com/2010/12/test-sizes.html
http://blog.shinetech.com/2012/12/18/simple-session-sharing-in-tomcat-cluster-using-the-session-in-cookie-pattern/