μFaaS

golang micro FaaS framework

A minimal service to run container in a function as a service fashion. Easily embeddable and with a reasonably low resource consumption.

Installation

Currently only go get is supported

go get github.com/muka/mufaas

Usage

1. Start the daemon mufaas daemon
2. Point to a folder with a Dockerfile

   cd $GOPATH/src/github.com/muka/mufaas
   mufaas add --name node-example --type node ./examples/node
   

3. Once built you can run the function mufaas run node-example World The API has ongoing support for stdin as a io.Reader.
4. Drop the function mufaas remove node-example

Flags:

• -v enables debug logging
• --url set the daemon endpoint

Language support

Currently basic support is provided for those languages. See examples directory for sample functions.

• node
• python
• php
• golang

Adding language support

When calling mufaas add ./path the default behavior is to lookup for a Dockerfile in the provided path and build it.

If a Dockerfile is not available but the --type flag is provided, mufaas will use a matching Dockerfile placed in a shared directory on the filesystem (eg ~/.mufaas/templates/<type>/Dockerfile) to create the function image.

Is up to the provided Dockerfile implementation to run any dependency management tool and start the container with CMD.

If other files or directories are in the same path of the Dockerfile also those will be copied in the container image.

Ensure to always provide a CMD to be executed when running the function (ENTRYPOINT is ignored).

For reference see ./templates/node/Dockerfile

Exec mode benchmark

1. Create & run function container: 0.60s
2. Run function container: 0.45s
3. Exec on running container: 0.17s

To Do

• Move todo list to issue tracker
• Add test coverage to commands
• Add support for language specific deployment (from templates base image)
• Add stream support for stdin / stdout / stderr
• Add pipe-able command support
• Add docker release (amd64, arm)
• Add support for local registry
• Add support for pluggable authentication and authorization (oauth2, jwt)

License

MIT License

Copyright (c) Luca Capra