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sandbox/examples/simple-open-loop-policy/README.md

Instructions for Running Examples

The commands below assume that the brooklyn script is on your $PATH, this project has been built, and you are in this directory. Adjust to taste for other configurations.

export BROOKLYN_CLASSPATH=$(pwd)/target/classes

Three-tier: auto-scaling app-server cluster fronted by nginx, MySql backend wired up, on localhost

brooklyn launch --app brooklyn.demo.WebClusterDatabaseOpenLoopExample --location localhost

The above requires passwordless ssh localhost and requires gcc to build nginx. You could instead target your favourite cloud, where this has been tried and tested:

Redistributable embedded example:

To build a redistributable tar.gz with a start.sh script

which invokes the main method in the example class to start

(the redistributable will be at: target/brooklyn-?-bin.tar.gz )

mvn clean assembly:assembly

For more information, please visit:

http://brooklyncentral.github.com/use/examples/webcluster/

Developer Notes

This example sends an SMS message when the cluster has reached its max size (and where the auto-scaler policy would continue to increase the size if it were not capped). The message is sent using clickatell.com, using http://smsj.sourceforge.net.

Because smsj is not available on maven central, you must obtain this library yourself and install it into your local Maven repository:

wget -Osmsj-20051126.jar http://sourceforge.net/projects/smsj/files/smsj/smsj-snapshot-20051126/smsj-20051126.jar/download

mvn org.apache.maven.plugins:maven-install-plugin:2.3.1:install-file
-Dfile=smsj-20051126.jar
-DgroupId=io.brooklyn \ -DartifactId=org.marre.smsj
-Dversion=1.0.0-20051126
-Dpackaging=jar

Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.