java-web-app-and-db-with-policy.yaml

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name: java-cluster-db-policy-example
services:
- serviceType: brooklyn.entity.webapp.ControlledDynamicWebAppCluster
  name: My Web with Policy
  location: localhost
  brooklyn.config:
    wars.root: http://search.maven.org/remotecontent?filepath=io/brooklyn/example/brooklyn-example-hello-world-sql-webapp/0.6.0-M2/brooklyn-example-hello-world-sql-webapp-0.6.0-M2.war
    http.port: 9280+
    proxy.http.port: 9210+
    java.sysprops: 
      brooklyn.example.db.url: $brooklyn:formatString("jdbc:%s%s?user=%s\\&password=%s",
         component("db").attributeWhenReady("datastore.url"), "visitors", "brooklyn", "br00k11n")
  brooklyn.policies:
  - policyType: brooklyn.policy.autoscaling.AutoScalerPolicy
    brooklyn.config:
      metric: $brooklyn:sensor("brooklyn.entity.webapp.DynamicWebAppCluster", "webapp.reqs.perSec.windowed.perNode")
      metricLowerBound: 10
      metricUpperBound: 100
      minPoolSize: 1
      maxPoolSize: 5
      
- serviceType: brooklyn.entity.database.mysql.MySqlNode
  id: db
  name: My DB
  location: localhost
  brooklyn.config:
    # this also uses the flag rather than the config key
    creationScriptUrl: classpath://visitors-creation-script.sql