Overview

Rainbow supports blue-green deployment of static web applications to nginx and emphasizes simplicity of operation and implementation.

Rainbow expects

• fabric to be pre-installed in the deployment toolchain
• used as an api from within your deployment-related fabfiles
• artifacts packaged as a tar.gz, which will be extracted on the target node filesystem
• nginx to serve the artifacts

Usage

Rainbow is expected to be used as an api from within the fabfile(s) used for application deployment.

Since Rainbow is an api, the resulting fabfile integration can look however you want, but Rainbow is designed to support a fab commands like:

Deploy the next release to production:

fab prod deploy-next:artifact_name=rainbow-test.c7821a2.tar.gz

Roll-forward (cut-over) to the 'next' release:

fab prod roll-forward

Roll-back (cut-over) to the 'previous' release:

fab prod roll-back

Credits

Rainbow was heavily-inspired by:

• gitric

Rainbow is:

• built-on the terrific Fabric library for ssh and system management tasks
• made much-simpler by fabtools convenience functions on top of Fabric