Petals Documentation > Petals ESB > Petals ESB 5.5.0 > Page Comparison - Cloud Installation (v.8 vs v.9)

Cloud Installation

Version 8 by Christophe DENEUX
on Sep 07, 2015 10:31.
<< Changes from 7 to 8
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Version 9 by Christophe DENEUX
on Sep 07, 2015 10:59.
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* and a Roboconf application archiving vacation requests and task status.

{info}Source code associated to this sample is available here: https://github.com/petalslink/petals-virtual-container{info}
{note}Extracts of source code given below are for comprehension. It's not the right source code. To get it, see the Git repository of the sample.{note}


h2. The Roboconf application "External resource"

This applicative resource is a web application running on Tomcat8 cluster, composed of:
* a load balancer redirecting incoming HTTP SOAP request on an available Tomcat8 server where the web application is deployed,
* several servers running Tomcat.
{gliffy:name=TomcatCluster|size=M|version=2}

So the model of this Roboconf application is:
{code:xml}
Tomcat8_VM {
installer: target;
children: Tomcat8;
}

Tomcat8 {
installer: script;
exports: ip, port = 8080;
children: Tomcat8_Application_WAR;
}

HAProxy_VM {
installer: target;
children: HAProxy;
}

HAProxy {
installer: script;
imports: Tomcat8.port (optional), Tomcat8.ip (optional);
exports: ip, httpPort = 80, statsPort = 8080;
}
{code}

And its default instantiation is:
{code}
# A VM with HAProxy_VM load balancer
instance of HAProxy_VM {
name: HAProxy VM;

instance of HAProxy {
name: Haproxy;

httpPort: 80;
statsPort: 8080;
}
}

# A VM with Tomcat
instance of Tomcat8_VM {
name: Tomcat VM1;

instance of Tomcat8 {
name: Tomcat1;

instance of Tomcat8_Application_WAR {
name: samplesActivitiSOAPservices1;

applicationFile: samples-SOAP-services.war;
}
}
}

# Another VM with Tomcat
instance of Tomcat8_VM {
name: Tomcat VM2;

instance of Tomcat8 {
name: Tomcat2;

instance of Tomcat8_Application_WAR {
name: samplesActivitiSOAPservices2;

applicationFile: samples-SOAP-services.war;
}
}
}
{code}