Tag Archives: tomcat

Tomcat debugging in Docker

Like a many things in Tomcat, there are a number of ways to enable remote debugging. Here’s the easiest way I’ve found to enable remote debugging in a Docker container running Tomcat.

Spring Boot as a Windows Service

The documentation provided by Spring on deploying a Spring Boot application as a Windows Service is a little sparse. Indeed, here it is in full:

Spring Boot application can be started as Windows service using winsw.

A sample maintained separately to the core of Spring Boot describes step-by-step how you can create a Windows service for your Spring Boot application.

— From Spring Boot Reference Guide (version 1.4.3), section 56.2: Microsoft Windows Services

As the official reference guide is lacking detail, here is a step by step guide to building and deploying a Spring Boot application as a Windows Service.

Docker Part 3: Disposable Containers

The previous posts in this series on Docker have looked at running containers to run services, specifically a web server and database server. However, Docker allows containers to be created, run, stopped and destroyed so cheaply that they can be used to run a single job. This job could be a script or even a single command. Unlike a service, a job will stop running when it’s complete. A container running a short lived job can be set to automatically stop and remove itself once the job is complete. If the job needs to be run again, it is reasonably efficient for Docker to start up a brand new container as required.

Docker Part 1: Running Containers

Docker is a containerization technology that’s been getting quite a bit of attention over the last year or two. It offers a more lightweight, flexible and repeatable solution to creating and running Virtual Machines (VMs). In this, the first in a series of posts on Docker, I’ll look at how to run an application inside of a pre-built container image.

XRebel

ZeroTurnaround, the smart kids behind JRebel, have launched a new product: XRebel. And boy, it’s a good one! It’s described as “X-Ray glasses for your webapp”. It’s a performance profiler with features previously only seen in serious application performance monitoring (APM) solutions such as AppDynamics and New Relic.

Deploying to Tomcat 7 with Maven

It may be desirable to have Maven automatically redeploy the application(s) to a test server on builds. This may be useful in a Continuous Integration (CI) scenario where we want some system running the latest build.
In this example, we want Tomcat updated with the latest build whenever we put an updated build in the Maven repository.

Integration Tests with Selenium and tomcat7-maven-plugin

To create an automated integration test of my spanners-struts webapp, I need a way of launching it as part of the Maven build process.