L'intervento si propone di illustrare l'utilizzo di strumenti di automazione per ambienti basati su Container adatti ad un approccio DevOps, dallo sviluppo alla produzione. Saranno forniti dettagli ed esempi pratici su Container in Cloud per visualizzare, configurare ed orchestrare i propri stack tecnologici su di una infrastruttura Docker erogata come servizio.

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You and your containers: strumenti di automazione in Cloud
Fabrizio Marini & Gabriele Provinciali
ROME 24-25 MARCH 2017

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• Da Maggio 2006:
– 256 gare portate a termine
– Run, Triathlon, Swim, Bike
• 18 - Marathon
– 42,195km - Personal Best 3h:21:11
• 60 - Half Marathon
– 21,097km - Personal Best 1h:28:46
• 03 - Half Ironman
– 1,9km swim + 90km bike + 21,097km run
– Personal Best 5h:37:59
• "We all have dreams. But in order to make dreams
come into reality, it takes an awful lot of
determination, dedication, self-discipline, and
effort.“
- Jesse Owens
Qualcosa su di me ...
April 1996 – February 2003
Founder / Owner / Partner
February 2003 - December 2008
Systems Engineer Principal
December 2008 – Today
Master Principal Sales Consultant
www.linkedin.com/in/fabriziomarini
www.fabriziomarini.com

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Cosa hanno in comune?

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Maven & “UBER” Jar
<dependency>
<groupId>fish.payara.extras</groupId>
<artifactId>payara-micro</artifactId>
<version>4.1.152.1</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>org.apache.tomcat.embed</groupId>
<artifactId>tomcat-embed-core</artifactId>
<version>${tomcat.version}</version>
</dependency>

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Si ... ma che devo fare?
• mvn archetype:generate -DarchetypeArtifactId=maven-archetype-webapp -
DarchetypeGroupId=org.apache.maven.archetypes -
DinteractiveMode=false -DgroupId=com.example.codemotion -
DartifactId=codemotion-app -DarchetypeVersion=1.0
• mvn clean compile
• mvn package
• java -jar codemotion-app-1.0-SNAPSHOT-jar-with-dependencies.jar

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Esempio di Main per lo Uber Jar di Tomcat Embedded
public class Main {
public static final Optional<String> PORT = Optional.ofNullable(System.getenv("PORT"));
public static final Optional<String> HOSTNAME = Optional.ofNullable(System.getenv("HOSTNAME"));
public static void main(String[] args) throws Exception {
String contextPath = "/" ;
String appBase = ".";
Tomcat tomcat = new Tomcat();
tomcat.setPort(Integer.valueOf(PORT.orElse("8080") ));
tomcat.setHostname(HOSTNAME.orElse("localhost"));
tomcat.getHost().setAppBase(appBase);
tomcat.addWebapp(contextPath, appBase);
tomcat.start();
tomcat.getServer().await();
}
}

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Ok in locale ... ma nel “Cloud” come si fa?
• Devo creare un container
• Imparare come accederci ... magari in ssh
• Configurarlo
• Installare un JDK
• Impostare variabili ambientali (i.e Port)
• Caricare e far partire l’applicazione
• Impostare un indirizzo pubblico
• Impostare un bilanciatore
• Avere la possibilità di scalare ed aggiungere nodi e ram

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Oracle Application Container Cloud Services - ACCS
• 1° Click scelgo il tipo di container (java, Node.js, PHP ...)

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Oracle Application Container Cloud Services - ACCS
• 2° Click faccio l’upload di uno zip che contiene Uber Jar + manifest.json
{
"runtime":{
"majorVersion": "8"
},
"command": "java -jar codemotion.jar",
"release": {
"build": "1",
"commit": "1",
"version": "1"
},
"notes": “Codemotion demo"
}

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Oracle Application Container Cloud Services - ACCS
• Aspetto  e poi provo il tutto cliccando sul link pubblico che mi viene fornito ...

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Non ho maltrattato HW per preparare questa Demo

14. https://developer.oracle.com/
https://cloud.oracle.com/tryit