brooklyn-docs/guide/ops/gui/_my-web-cluster2.yaml

name: My Web Cluster

location: localhost

services:

- type: org.apache.brooklyn.entity.webapp.ControlledDynamicWebAppCluster
  name: My Web
  brooklyn.config:
    wars.root: http://search.maven.org/remotecontent?filepath=io/brooklyn/example/brooklyn-example-hello-world-sql-webapp/0.6.0/brooklyn-example-hello-world-sql-webapp-0.6.0.war
    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:
  - type: org.apache.brooklyn.policy.autoscaling.AutoScalerPolicy
    brooklyn.config:
      metric: webapp.reqs.perSec.windowed.perNode
      metricLowerBound: 0.1
      metricUpperBound: 10
      minPoolSize: 1
      maxPoolSize: 4
      resizeUpStabilizationDelay: 10s
      resizeDownStabilizationDelay: 1m

- type: org.apache.brooklyn.entity.database.mysql.MySqlNode
  id: db
  name: My DB
  brooklyn.config:
    creationScriptUrl: https://bit.ly/brooklyn-visitors-creation-script