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Continuous Delivery of Continuous Delivery

CONTINUOUS  DELIVERY  OF CONTINUOUS  DELIVERY Gerd Aschemann

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ENTWICKLERTAG  KARLSRUHE  2016 Gerd Aschemann [email protected] http://aschemann.net twitter: @GerdAschemann

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FRAGESTUNDE Wer nutzt Continuous Integration? Wer betreibt Continuous Delivery? Wer setzt auf Infrastructure  as  Code (IaC)? Wer baut seine CIP/CDP per IaC? Wem sagt das alles gar nichts?

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EIN  DRAMA  IN  FÜNF  AUFZÜGEN  Vagrant-Setup! Demonstration von CD4CD Vagrant Puppet (+ Shell + Perl) Jenkins (+ Maven) Docker/Nexus Was/Wie/Warum oder Warum nicht? → Platform  as  Code  (PaC)!

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ZIEL-­ARCHITEKTUR  (VEREINFACHT) Devops-Engineer Change

«Linux/Windows/OSX/...» Developer-PC «Linux» Meta-Build-Server

LocalDevelopment «Git» Local_Repository

«Jenkins» Jenkins_Master

Vagrant Up

Push

Pull

«Vagrant» LocalVM «SCM-Manager» SCM-Manager_Local

Check Out

LatestDevelopment «Jenkins» Jenkins_Local

«SCM-Manager» SCM-Manager_Master

«Git» Latest_Repository

Vagrant Up

«Vagrant» LatestVM «SCM-Manager» SCM-Manager_Latest

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«Jenkins» Jenkins_Latest

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STAGE  0:  BASE modules/ (base/) scripts/init.sh puppet/init.pp composites scripts/run.sh lists/minimal Vagrantfile

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BASE/SCRIPTS/INIT.SH Install puppet Install puppet modules stdlib etckeeper

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BASE/PUPPET/INIT.PP Purge packages (NFS, …) Install packages (git, perl-test, …) Setup hiera Setup etckeeper!

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COMPOSITES lists/minimal

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VAGRANTFILE Environment Boxname Memory IP/Port Ranges Caching! Provision: composite (minimal)

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STAGE  1:  JENKINS Neu: modules/jenkins-native scripts/init.sh: Wie gehabt puppet/init.pp !!! composite/lists: jenkins-only NEU: scripts/test.pl  Das ist ein Unit-Test!  Ist das ein Unit-Test?

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STAGE  2:  JENKINS  INTEGRATION  TEST Neu: modules/it-jenkins-minimal scripts, composites: Wie gehabt puppet/init.sh Seed Job HelloWorld Integrations-Test: Wurden die Jobs ausgeführt?

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STAGE  3:  DOCKER Neu: modules/data Neu: modules/docker Manuelle/Inkrementelle Ausführung führt zu Fehler?! Keine Änderung in Vagrantfile/composites

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STAGE  4:  NEXUS Neu: modules/nexus Keine Änderung in Vagrantfile/composites  Puppet Docker-Module erzeugt OS-Service (Nexus)

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STAGE  5:  JENKINS  +  NEXUS  INTEGRATION TEST Neu: modules/jenkins-settings-nexus-localhost Neu: modules/it-jenkins-nexus-minimal Neu: composites/lists/it-jenkins-nexus-minimal

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USE  CASES Kontinuierliche Fortentwicklung der CDP Automatisierter regelmäßiger (Neu) Aufbau der CDP Testen neuer Komponenten(versionen) Testen neuer Prozesse Schulung/Einarbeitung

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ENVIRONMENTS  /  CD  STAGES Development/Continuous Integration (Automatisierte Tests) User Acceptance Test (Exploratives Testen) (Performance/Exception/… Tests) Produktion

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OFFENE  FRAGE(N) Was ist mit dem Zustand (in Produktion)? Administrativer Zustand → PaC Operativer Zustand → it  depends Repositories Alte Instanz(en) vorhalten? Backup?

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FAZIT CD-Plattform als PaC realisiert Nutzung von Virtualisierung und Containern Modularisierung und Aggregation Puppet ist oft hakelig (Ansible auch) Ausblick: Feedback-Loops/Monitoring fehlt Unabhängigkeit von Puppet/Ansible/Salt/Chef???

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LINKS Beispiele: https://github.com/devopssquare/demo-­etka16 https://github.com/devopssquare/helloworld https://github.com/devopssquare/helloworld-­seed Slides: http://aschemann.net/gerd/publications/cdofcd-­ etka2016.pdf

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DANKE!

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