This repository shows the sort of plumbing that you would need to use Travis CI and docker to run tests against a running application as part of CI.
The dockerised example server simply sends "Hello World" to anybody who connects
on port 5000, and has an accompanying .travis.yml file which defined the
process of building, testing, and tearing down the container.
Pull requests and suggestions welcome.
This example was put together for the blog post: How to set up Docker containers in Travis CI.