- 16.1 How to survive deployment
- 16.2 Deploying with Ant
- 16.3 Database setup in Ant
- 16.4 Deploying with SmartFrog
- 16.5 Using SmartFrog with Ant
- 16.6 Embracing deployment
- 16.7 Summary
We've been deploying web applications since chapter 12. It's now time to look at deployment in detail—all the way to production. Before we start, we need to revisit the question: What is deployment?
According to application server vendors, deployment is just "deploy-by-copy," such as copying a WAR or EAR file into a directory. Since all application servers now support this, isn't deployment done? Hardly. The real problem is not getting the application to the remote machine, or even getting the application loaded by the application server. It is getting the whole system working.
A web site cannot be described as successfully deployed until the database is up and running, the web site can talk to that database, and its pages are externally visible. This is what deploy-by-copy forgets about: copying a file to the application server is a tiny piece of the problem.
Just as we've automated the building and testing of our applications, so can we automate deployment. It's going to be hard, because deployment itself is complex. But it is possible, and it can transform your development if you can manage it. In this chapter, we're going to explore the final piece of Ant's built-in deployment support—database setup—then look at how Ant can delegate advanced deployment to another tool, SmartFrog. The chapter will show that development processes need to evolve to embrace deployment, instead of fearing it.
Deployment is a really fun area to work in, but one we only had space for one chapter on.
TODO: paste in Cargo writeup. For now:
- Product home page
- Distributed Testing with SmartFrog
- The project artifacts are currently hosted in their own repository; synchronizing with ibiblio is on hold until the full 3.11 release ships. Currently (July 2007) betas are coming out on a two-weekly cycle.