Dear Butler, please meet Docker

Support for running Butler as a Docker container is finally here.

While it is still possible to run Butler as a normal Node.js app, deploying Butler as a Docker container has many benefits:

• No need to install Node.js on your server(s)
• Make use of your existing Docker runtime environments, or use those offered by Amazon, Google, Microsoft etc.
• Benefit from the extremely comprehensive tools ecosystem (monitoring, deployment etc) that is available for Docker.
• Updating Butler to the latest version is as easy as doing a "docker pull ptarmiganlabs/butler:latest".

Enjoy!