Netbeans and JBoss 7

As much I like to use Glassfish, customers might have different taste or policy. We are challenged now to run our EJB/Web-application on JBoss as well. Netbeans supports JBoss up to version 6 but not the latest version 7 which is fully EE6 web profile compatible. Version 7 is not (yet) supported due to major revamp of the management API of JBoss. I found one plugin provided by Oleg Kulikov on github, a working prototype that can control Jboss 7 server from Netbeans, but cannot deply an application to it or debug it. I wish I know more about Netbeans RCP development, but it is not an easy task to create this kind of highly integrated NB plugin.
Discussion as Netbeans issue here.

JBoss Plugin

JBoss Plugin

ZK goes EC2 (Part 3)

The third part of the tutorial where I improve a few things. I will not walk through the complete code but highlight a few important points and give you the complete sourcecode at the end.

To recap, my requirements:

  • I want to allow users in my company to start and stop instances on their own without them login to AWS console.
  • Only specific instances are available to them.
  • Avoid using elastic IP’s (you pay for them if they are not assigned)
  • Make it configurable

The improvements in this version:

  • Remove the hardcoded access keys and place them encrypted in a properties file.
  • Only instances that are not protected can be started or stopped.
  • Update DynDNS entries from the application
  • Some cosmetic cleanup of the control panel

Continue reading

ZK goes EC2 (Part 2)

Part 1 of this tutorial we concluded with an web application that displays all our instances and their status. In this part we will add some more features to control our instances.

Prerequisites:

  • The project and environment from part 1

Tutorial (complete sourcecode at the end):

  • Display the region endpoints and allow to select different one
    We hardcoded our endpoint in the first version, if you run instances across the globe in the various AWS datacentres (US, Ireland, Singapore, Tokyo) we need to switch the endpoint easily.
    Lets add one more listbox, that we hide in a ZK popup (we could use a combo listbox, but for the sake of playing with all the available ZK components I use the popup). Same concept add a listbox in the zul and a EC2 region list and a list model with customer renderer in our controller. Continue reading

ZK goes EC2 (Part 1)

Certainly not a big deal to deploy a ZK web application to a Amazon EC2 instance, but I needed a simple application that allows my team to start/stop our EC2 instance that we use for testing and demo without logging into the AWS account or using the Firefox plugin (both giving too many rights and are too complex for some business users).
I created this app to give my users (tester and trainer) a chance to start the servers without logging into AWS. I share this because the are no samples in the SDK file that cover the EC2 instances in detail.

In part 1 of this tutorial we will create a ZK application that displays the status of our instances in a list.

In part 2 we will add the start-stop instance function, in part 3 we tinker with IP addresses and DynDNS domains and in part 4 we let our web application time scheduled (EJB Timer) control the instances automatically.

Pre-Requirements:

Tutorial Part 1:

Hudson Plugin’s of the day

I really enjoy using Hudson as CI platform every day. It is open, it is vastly extensible, has a great community support and not to forget the outstanding job by Kohsuke to create Hudson and lay out the foundation of this ecosystem. There is always more to learn, find new ways to do jobs with Hudson, maybe that is the reason why there is no book yet about Hudson. I just want to highlight 3 very simple plugins that make life easer:

  • Build Timeout (link)
    I have some jobs that take a long time, mainly because they transfer artifacts to S3 and deploy applications to test and demo servers. Once in a while I run into timeouts or hanging batch scripts which will make the complete job haning. If you dont notice you start creating a build queue. This plugin terminates a job if it extends the configurable time limit.

    Build Timeout

  • Time Stamper (link)
    With lon running jobs if would be helpful when which task started and how long it took to finish. The plugin does nothing but putting a timestamp in front of each line of the console output.

    Time Stamper

  • FTP Publisher (link)
    For simple file transfers you might want to try this plugin instead of batch script coding the transfer.

Hudson saves Artifacts to Amazon S3

I recently start to work a lot with Amazon AWS by utilizing EC2 servers and using S3 as online storage. While you should do your maths using the servers to generously (it quickly becomes expensive if you create instances on the fly and keep them running), S3 usage is a rather innocent matter. Currently 1GB costs you 0.15 U$ per month (more details here), but please dont forget to look at data transfer charges as well (not longer free from November 2010). I use the service mainly for backup purpose, while I still rely on local backups once a month, the continuous backup happens on S3 (which might be safer than my backup harddisk). The data volume I transfer is small enough (not maintaining a filesharing server !) to keep the costs low.

I was looking for a way to transfer my Hudson artifacts to my S3 account and could not find a regular promoted plugin, almost creating a manual script as workaround, until I found a plugin, which you still need by yourself, but works perfectly. This tutorial (based on Ubuntu) is a hands-on walk-through from the scratch. Some steps are rather simple.

In this previous tutorial I described my approach of using artifacts as a backup media.

Update 2010-10-04: There is another updater in github who added functionality to the plugin: here the address git://github.com/d6y/hudson-s3.git

Continue reading