Add an eventSessions at Jfokus 2012 about Jenkins
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- Topic: Jenkins
Tuesday 14th February 2012
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Jenkins Evolutions
by Toomas Römer
Jenkins is believed to be a continuous integration tool, but in reality it is an orchestration platform with a GUI. The large set of plugins and the loose definition of projects lets you use Jenkins for operations that it was not originally meant for. We use it for building software, artifact propagation, release management, VCS branch propagation, cron replacement, server monitoring etc. In this session, I will go through the different successes and failures that we?ve experienced in the past years of using Hudson/Jenkins to get our products and company off the ground.
Wednesday 15th February 2012
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Zero Downtime Continuous Deployment of Java Web Applications
by Fabiane Bizinella Nardon
Continuous Deployment allows to deploy code in production as soon as it has passed the quality assurance tests. This technique can dramatically reduce the release cycles, giving the company the speed expected in today's world, specially for internet based services. With the right tooling and techniques, a company can create an error free and secure process to automatically deploy its applications in production.
Continuous deployment, however, is only viable if you can guarantee zero downtime for your application during the deployment process. With dynamic languages like PHP and Ruby, this is straightforward. Just copy the new files to the deployment folder and voilà! With Java web applications, however, things are not so simple. Although many application servers offer autodeploy features, you'll still have a few seconds of downtime while the server is deploying the application.
This presentation will show how to create a continuous deployment process with zero downtime for Java web applications. Using tools like Hudson/Jenkins, REST services and open source application servers, you'll learn through real world examples how to create a secure and error free continuous deployment process for your application. We will also show how to deploy to cloud based servers, like Amazon AWS, what are pitfalls and limitations for these cloud offers and how you can overcome them.