This is a proof of concept to demonstrate we can:
- run a sinatra app with jRuby
- run the app in a Java servlet container (Tomcat)
- run the app in Google's Appengine
Contains a small ruby sinatra application under small_app.
Make sure you have a working JDK in your machine before starting!
Some prior experience with Java, Appengine and Ruby would be advisable.
- Install the ruby version
- Install bundler
gem install bundler
cd small_app
bundle
- Start the application
bundle exec rackup - Point your browser to http://localhost:9292
- Install warbler
gem install warbler
cd small_app
warble
Now our ruby app is packaged in a format suitable for Java containers.
- Download Apache Tomcat
- Uncompress anywhere
- Start the server
bin/startup.sh - Point your browser to http://localhost:8080
- Go to applications manager
- Install the war file the warbler created
small_app.war - Point your browser to http://localhost:8080/small_app
Now you can stop tomcat with
bin/shutdown.sh.
- Download the SDK
- Uncompress anywhere
- Uncompress the war file inside appengine's directory, or symlink to the uncompressed war that tomcat created in
webapps/small_app.war
Appengine applications need an appengine-web.xml. Create one next to web.xml in your WEB-INF war folder with the following contents:
<?xml version="1.0" encoding="utf-8"?>
<appengine-web-app xmlns="http://appengine.google.com/ns/1.0">
<application>YOUR_APP_NAME</application>
<version>1</version>
<threadsafe>true</threadsafe>
</appengine-web-app>
- Start the appengine server
bin/dev_appserver.sh small_app - Deploy to appengine production servers. You'll have to create an app first.
bin/appcfg.sh update small_app