Proposal: third-party templates via GitHub

[alexellis]

Expected Behaviour

Anyone should be able to download a community-supported 3rd party template for Perl, PHP, Kotlin etc.

Current Behaviour

PRs to main project.

Possible Solution

I'm open to input on this too.

$ faas-cli add-template https://github.com/alexellis/kotlin-template

Downloading https://github.com/alexellis/kotlin-template/master/blob/master.zip
Expanding kotlin/Dockerfile to template/kotlin/Dockerfile
...

Repo structure:

./template/kotlin/Dockerfile
./template/kotlin/handler.java
./README.md

Initial version of this can be a "dumb" shortcut to download a zip file and unzip into a directory.

Out of scope for v1:

• Listing templates installed locally
• Online directory of templates

Mentions: @johnmccabe and others for the suggestion. @nicholasjackson how does Hashicorp do this?

Other files which need changes:
#82 (comment)

fprocess needs to come out of the Golang code and sit in a template.yml file within i.e. ./template/kotlin/template.yml

language: kotlin
fprocess: kotlin handler.kotlin

[rgee0]

Questions:

Should alternative templates for a language overwrite one another?
If so, should overwriting of "official" templates be allowed?

[ericstoekl]

I'm happy to take on this issue if that's okay. Should have a first-run of it committed by tonight (west coast time).

[ericstoekl]

Derek add label: skill/intermediate

[alexellis]

@rgee0 - maybe we should "cowardly refuse" to overwrite files?

@ems5311 absolutely, please do. I'd see this as re-using some of the work around "fetchTemplates".

[alexellis]

Derek add label: skill/intermediate

[alexellis]

@ems5311 added some more detail in the original comment.

[ericstoekl]

@alexellis, Should this change expect there to be a separate template.yml file in each template folder? And would the schema of that file be just language: and fprocess:?

[alexellis]

In terms of decoupling the Golang code I think yes. What's your take on it?