continuous delivery - jfokus · continuous delivery from zero to hero axel fontaine @axelfontaine...

Continuous Delivery

from Zero to Hero

AXEL FONTAINE@axelfontaine

axelfontaine.com

Entrepreneur - Public Speaker - Continuous Delivery Expert

AXEL FONTAINE@axelfontaine

axelfontaine.com

Entrepreneur - Public Speaker - Continuous Delivery Expert

flywaydb.org getphoton.com

photon

about

questions

GOAL

Fully automated deploymentof a complete application

into productionmultiple times a daywith zero downtime

Puttingthingsinto

PERSPECTIVE

http://digitalcitizen.ca/2009/06/22/simpsons-profile-pics-for-facebook-and-other-applications/

CONTINUOUS

DELIVERY

http://www.flickr.com/photos/kamshots/3096111340/

stackoverflow.com

stackoverflow.com

stackoverflow.com

stackoverflow.com

Prerequisites

Processhttp://www.flickr.com/photos/feffef/460299390/in/photostream/

Processhttp://www.flickr.com/photos/feffef/460299390/in/photostream/

Build

Build

Version Control

Version Control

Testhttp://www.flickr.com/photos/vitorcastillo/2994723741/

Testhttp://www.flickr.com/photos/vitorcastillo/2994723741/

Unit Test Component Test Acceptance Test

Small Medium Large

Unit Test Component Test Acceptance Test

Small Medium Large

Build

DEV

SmallTests

Build

DEV

SmallTests

MediumTests

Build

DEV

SmallTests

MediumTests

LargeTests

VersionControl

Build Build

DEV ContinuousIntegration

SmallTests

MediumTests

LargeTests

SmallTests

MediumTests

LargeTests

hands-on

VirtualBox 10.0.2.2:xxxx

CI

Jenkins :8080 -> :8080

Artifactory :8081 -> :8081

LBHAProxy :9000 -> :9000

APP2Jetty :9100 -> :9102

SSH :22 -> :9112

APP1Jetty :9100 -> :9101

SSH :22 -> :9111 DBH2 :9200 -> :9200

DEPLOYMENTautomation

http://www.flickr.com/photos/soldiersmediacenter/3650607959/

do

NOT

deploy

SNAPSHOTS !

VersionControl

Build Build Release

DEV Continuous Integration

SmallTests

MediumTests

LargeTests

SmallTests

MediumTests

LargeTests

Artifact Repository

hands-on

DB DeltaCode Configuration

What gets deployed?

Code

DeploymentPackage

Code

DeploymentPackage

DeploymentScript

backupstopinstallstart…

Code

DeploymentPackage

DeploymentScript

backupstopinstallstart…

Release

Continuous Integration

Artifact Repository

Target

DeploymentScript

backupstopinstallstart…

hands-on

Configuration

DeploymentPackage

Code

Maybe it could change one day ≠ Environments

Code

DeploymentPackage

?Environment Detection

Code

Auto-Configuration

TestEnvironment

Detection

Release

Continuous Integration

Artifact Repository

Target

DeploymentScript

backupstopinstallstart…

hands-on

DB

DB

DB

DB

Zero DowntimeRolling Updates

hands-on

DB Delta

The Fearof

DDL

DEV PROD

?

VS

DML DDLhttp://digitalcitizen.ca/2009/06/22/simpsons-profile-pics-for-facebook-and-other-applications/

Name Balance

Homer 163

Marge 214

Bart 9

Lisa 25

VS

DML DDL

Name Balance

Homer 0

Marge 0

Bart 0

Lisa 0

Name

Homer

Marge

Bart

Lisa

VS

DML DDL

DB Delta

Code

DeploymentPackage

Code

DeploymentPackage

DB?

?

flywaydb.org

How doesFlyway work?

Empty DB

Empty DB

Empty DB Version 1

Empty DB Version 1 Version 2

Release

Continuous Integration

Artifact Repository

Target

DeploymentScript

backupstopinstallstart…

hands-on

Backwards-compatiblemigrations

Surname Last_Name

ALTER TABLE … RENAME COLUMN

Surname

Last_Name Last_Name

Last_NameSurname

ALTER TABLE …ADD COLUMN Last_Name

UPDATE … SET Last_Name = SurnameCREATE TRIGGER …

DROP TRIGGER …ALTER TABLE …

DROP COLUMN Surname

Last_Name

Last_Name

DROP TRIGGER …ALTER TABLE …

DROP COLUMN Surname

hands-on

Registration

MailService

Registration

MailService

Registrationv2

MailService

ParcelService

Registration

MailService

Feature TogglesBranch by Abstraction

ParcelService

Registration

MailService

ParcelService

Feature TogglesBranch by Abstraction

hands-on

Summary

VersionControl

Build Build Release

DEV Continuous Integration

SmallTests

MediumTests

LargeTests

SmallTests

MediumTests

LargeTests

Artifact Repository

Target

DeploymentScript

backupstopinstallstart…

http://de.wikipedia.org/wiki/Datei:Yemen_Chameleon.jpg

One more thing

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/

AXEL FONTAINESoftware Development Expert

@axelfontaineaxelfontaine.com

business@axelfontaine.com