"Deploy the transit beam"

The Guardian's scala-based deployment system is designed to automate deploys by providing a web application that performs and records deploys, as well as providing various integration points for automating deployment pipelines.

Riff-Raff's documentation is available in the application (under the Documentation menu) but can also be viewed under riff-raff/public/docs in GitHub.

Riff-Raff has been built with the tools we use at the Guardian and you will find it easiest if you use a similar set of tools. Riff-Raff:

• relies on artifacts and riff-raff.yaml files describing builds being in S3 buckets with the artifacts having paths of the form project-name/build-number
• uses the AWS SDK and Prism to do resource discovery
• stores configuration, history and logs in a PostgreSQL database and a handful of DynamoDB tables

Screenshots don't do a lot to show how Riff-Raff works in practice - but here are a handful anyway, just to give a hint.

The deploy history view - this shows all deploys that have ever been done (in this case filtered on PROD and projects containing 'mobile')

This is what a single deploy looks like - displaying the overall result and the list of tasks that were executed.

The simple form for requesting a deploy can be seen here (further options are available after previewing)

Riff-Raff polls for new builds frequently and can be configured to automatically start a deployment for newly completed builds

See CONTRIBUTING.md.