When you start to use lots of containers in fabric8 you will probably need debug them. Most IDEs like eclipse and IDEA have remote debugger support; the challenge is enabling debug and figuring out which host and port the containers are listening on.
Some containers come out of the box with debugging enabled by default (e.g. Tomcat).
Others you can customise this via an environment variable. For example with Karaf based containers you define KARAF_DEBUG to be true. e.g. on a unix
To perform a remote debug in your IDE you need to find the host and port to connect the debugger to. Once you have these values you should be able to use the wizard in your IDE to setup a _remote debug* session.
If you are using the web console then:
In the fabric8 command line shell type:
Where mycontainer is the name of the container you wish to debug. The debug port and host should appear on the console.