OpenFaaS CNAB Duffle Packaging

This repo packages up OpenFaaS for Docker Swarm as a CNAB Bundle using the duffle CNAB installer.

• https://open.microsoft.com/2018/12/04/announcing-cnab-cloud-agnostic-format-packaging-running-distributed-applications/
• https://techcrunch.com/2018/12/04/microsoft-and-docker-team-up-to-make-packaging-and-running-cloud-native-applications-easier/

As I don't yet have access to a public CNAB repo to publish the bundle to you will have to build locally - I'll update as soon as one becomes available (this repo may also subsequently move under the openfaas-incubator org)

Also it sounds like it should be possible to target multiple orchestrators with a single bundle, should that prove possible I'll merge the Kubernetes install here as well.

I think CNAB has lots of potential !! A few rough edges right now but its very new and has the backing of both Docker and Microsoft with some of the core Helm contributors heavily involved.

Prerequisites

• Install Duffle as described in their repo.
• Docker running in Swarm mode.

Building the CNAB Bundle

• Clone this repo and cd into it.

  git clone https://github.com/johnmccabe/openfaas-cnab.git`
  cd openfaas-cnab
  

• Build the CNAB bundle with duffle

  duffle build
  

Installing OpenFaaS from CNAB Bundle

• Create Basic Auth credentials used to secure the API/UI (note that other mechanisms for securing OpenFaaS exist, I'm just including the basic option at the moment).

  duffle creds generate dev-creds johnmccabe/openfaas:0.9.7
  

• Install OpenFaaS (you can optionally disable auth by passing --set basic_auth=false to duffle install)

  duffle install openfaas johnmccabe/openfaas:0.9.7 -c dev-creds
  

• View the installed app and check the status of OpenFaaS

  duffle list
  duffle status openfaas -c dev-creds
  

• You can now proceed to login and use OpenFaaS (see the docs for guidance)

  faas login
  faas store deploy figlet
  echo HelloWorld | faas invoke figlet