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Continuous Delivery at Netflix: Uberconf
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Rob Spieldenner
June 27, 2014
Programming
0
210
Continuous Delivery at Netflix: Uberconf
Uberconf presentation of Continuous Delivery at Netflix: Speed at Scale
Rob Spieldenner
June 27, 2014
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Transcript
Continuous Delivery at Netflix Speed at Scale
Rob Spieldenner Senior Software Engineer on Engineering Tools team at
Netflix @robspieldenner -> Twitter
Speed breaks software Scale breaks hardware Speed at
Scale breaks everything
Netflix Culture
Culture Deck http://jobs.netflix.com/
Freedom & Responsibility
Context, not Control
Highly Aligned, Loosely Coupled
Act in Netflix’s Best Interest
Self Service
Developers on call for their services
Netflix OSS http://netflix.github.io/
OODA Loop - Observe, Orient, Decide, Act
Commit Unit Test Build Bake Deploy To Test Integration &
Acceptance Tests Red/Black Push Continuous Delivery Pipeline
Commit and Code Review
Pull Requests
Build simplify build file with plugins add metadata calculate version
output jar/war, sources, javadoc, rpm/deb lock dynamic dependencies
Ant build.xml <project name="example"> <property environment="env"/> <import file="${env.CBF_HOME}/library.xml"/> </project> ivy.xml
list dependencies list publications
Gradle build.gradle apply plugin: ‘nebula’ apply plugin: ‘java’ dependencies
{ testCompile ‘junit:junit:4.+’ }
Nebula Plugins http://nebula-plugins.github.io/
apply plugin: ‘nebula.nebula-project’ Builds Javadoc, Sources and a Test jar
Record information about the build and stores it in the .jar, via gradle-info-plugin Easy specification of people involved in a project via gradle-contacts-plugin
What Goes in the Manifest Module-Source=/mpex-common Module-Origin=ssh://
[email protected]
flix.com:7999/nexmpl/multiprojectexample.git Change=767e5d7 Manifest-Version=1.0 Implementation-Title=netflix#mpex-common;3.0.0
Implementation-Version=3.0.0 Built-Status=snapshot Built-By=rspieldenner Build-Date=2014-06-12_11:24:00 Gradle-Version=1.12-20140604072223+0000 Build-Host=localhost Build-Job=LOCAL Build-Number=LOCAL Build-Id=LOCAL Created-By=1.7.0_51-b13 (Oracle Corporation) Build-Java-Version=1.7.0_51 Nebula-Version=1.48 Implementation-Vendor=Netflix, Inc. X-Compile-Target-JDK=1.7 X-Compile-Source-JDK=1.7 Module-Owner=person@netflix.com Module-Email=team@netflix.com
apply plugin: ‘nebula.gradle- dependency-lock’ dependencies { compile ‘com.google.guava:guava:14.+’ testCompile ‘junit:junit:4.+’
}
dependencies.lock { "com.google.guava:guava": { "locked": "14.0.1", "requested": "14.+" },
”junit:junit": { "locked": "4.11", "requested": "4.+" } }
Jenkins
Job-DSL https://wiki.jenkins-ci.org/display/JENKINS/Job+DSL +Plugin
Job DSL Example example def project = 'quidryan/aws-sdk-test' def branchApi
= new URL(“https://api.github.com/repos/${project}/branches”) def branches = new groovy.json.JsonSlurper().parse(branchApi.newReader()) branches.each { def branchName = it.name job { name “${project}-${branchName}”.replaceAll(‘/’, ‘-’) scm { git(“git://github.com/${project}.git”, branchName) } steps { gradle(‘test’) } } }
Bake
aminator https://github.com/Netflix/aminator
chef for base image
Apply deb/rpm, snapshot
Unit of deployment
Deploy
Asgard https://github.com/Netflix/asgard
None
UI or REST API
Canary Deploys
Red / Black Push
Testing Webdriver Geb Betamax and manual
Monitoring How many people are watching? Can the new version
handle load? Errors and logging suro, jmx
Alert on issues
Maybe automatic rollback
Resiliency / Anti-Fragility
Simian Army https://github.com/Netflix/SimianArmy Chaos Monkey Chaos Gorilla Chaos Kong Latency
Monkey Janitor Monkey Conformity Monkey
Chaos Monkey randomly kill running instances
Chaos Gorilla take down an availability zone
Chaos Kong take down a region
Latency Monkey inject delays, timeout, latency
Janitor Monkey clean up unused instances
Conformity Monkey make sure instances follow rules
Assume services will break, disappear, have latency
Continuous Delivery Pipeline Commit Unit Test Build Bake Deploy To
Test Integration & Acceptance Tests Red/Black Push
Future Work Mesos based workflow engine Docker containers Build Insight/Metrics
Books
Adrian Cockcroft Flowcon Keynote - Velocity and Volume (or Speed
Wins) - http://www.youtube.com/ watch?v=wyWI3gLpB8o Roy Rapoport - Cloud Operations at Netflix - http:// www.youtube.com/watch?v=7779Wrun5fo AWS re:Invent - http://reinvent.awsevents.com/ recap2013.html Other Presentations
Netflix is Hiring http://jobs.netflix.com/