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name: java-cluster-db-policy-example
location: localhost
services:
- type: org.apache.brooklyn.entity.webapp.ControlledDynamicWebAppCluster
  name: My Web with Policy
  wars.root: http://repo1.maven.org/maven2/org/apache/brooklyn/example/brooklyn-example-hello-world-sql-webapp/0.9.0/brooklyn-example-hello-world-sql-webapp-0.9.0.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", 
       $brooklyn:external("brooklyn-demo-sample", "hidden-brooklyn-password"))

  brooklyn.policies:
  - type: org.apache.brooklyn.policy.autoscaling.AutoScalerPolicy
    brooklyn.config:
      metric: $brooklyn:sensor("org.apache.brooklyn.entity.webapp.DynamicWebAppCluster", "webapp.reqs.perSec.windowed.perNode")
      metricLowerBound: 10
      metricUpperBound: 100
      minPoolSize: 1
      maxPoolSize: 5
      
- type: org.apache.brooklyn.entity.database.mysql.MySqlNode
  id: db
  name: My DB
  creationScriptUrl: classpath://visitors-creation-script.sql
  # or https://raw.githubusercontent.com/apache/brooklyn-library/master/examples/simple-web-cluster/src/main/resources/visitors-creation-script.sql
  brooklyn.config:
    creation.script.password: $brooklyn:external("brooklyn-demo-sample", "hidden-brooklyn-password")