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<h2>Full example</h2>
<pre><code>ApacheServer {
# Apache instances will be deployed by Roboconf's Puppet extension
installer: puppet;
# Web applications could be deployed over this Apache server
children: My-Dash-Board, Marketing-Suite;
# Properties exported by this component.
# 'port' should have a default value, or we will have to set it when we create an instance.
exports: port = 19099;
# 'ip' is a special variable. It will be updated at runtime by a Roboconf agent.
exports: ip;
# Other components properties that this server needs to have so that it can start.
imports: LB.port (optional), LB.ip (optional);
# Here, the Apache may also be notified about components instances of type LB.
# The imports are marked as optional. It means that if there is no LB instance, an
# Apache instance will be able to start anyway.
#
# If the import was not optional, e.g.
#
# imports: LB.port, LB.ip;
# or even
# imports: LB.port (optional), LB.ip;
#
# ... then an Apache instance would need at least one LB instance somewhere.
# Imports may also reference variables from other applications
imports: external Lamp.lb-ip;
}
facet LoadBalanced {
exports: ip, port; # Define we export two variables.
}
instance of VM {
# This will create 5 VM instances, called VM 1, VM 2, VM3, VM 4 and VM 5.
name: VM ; # Yes, there is a space at the end... :)
count: 5;
# On every VM instance, we will deploy...
instance of Tomcat {
name: Tomcat;
}
}</code></pre>
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