DockerHub: apiaryio/dredd
Dredd is an HTTP API testing tool. You can find out more about it at its documentation or its code repository. This repository contains Docker setup for Dredd in form of a Dockerfile and the tooling necessary to regularly publish a Docker image with the latest Dredd version available.
Please read the Docker section of the Dredd's installation guide.
This repository has Travis CI builds set up. Travis CI supports setting up a cron build, which triggers every day. The build ensures the Dredd image isn't behind the latest Dredd version for more than one day.