Add OnlineWardleyMaps as service

[Heiss]

Hey,

this is my approach to add OnlineWardleyMaps in kroki as suggested in #179
Mostly it uses the diagramsnet logic plus some help from damonsk/onlinewardleymaps#170 and damonsk/onlinewardleymaps#75

Because i cannot build the java server (some issues with jdk or other stuff), i tested it with the following docker-compose.yml and add a smoke test for this service, too.

version: "3"
services:
  core:
    image: yuzutech/kroki
    environment:
      - KROKI_DIAGRAMSNET_HOST=onlinewardleymaps
      - KROKI_DIAGRAMSNET_PORT=8007
    ports:
      - "8000:8000"
  onlinewardleymaps:
    image: yuzutech/kroki-onlinewardleymaps
    environment:
      - LEVEL=debug
    expose:
      - "8007"
    build:
      context: onlinewardleymaps
      dockerfile: Dockerfile

Because the first results looks promising, i create the PR now before i try to finetune the svg/png output, because out of the box it looks not as expected.

The dockerfile contains 3 separate apps:

• the kroki service (which stands mostly on diagramsnet code)
• the onlinewardleymaps service, which gets some diff applied to get it working with kroki service.
• the supervisord service, which runs both other services

OnlineWardleyMaps is not created to be used in this use case, but I think my approach should handle some major cases with changes upstream. But a complete rewrite would break my approach with git diffs, so there is a git commit sha in dockerfile, which should be updated from time to time.

I am happy to hear from you and get some feedback.

TODO:

• add Tests for options with different width / height and showtitle

Have a great day.

Edit:

If someone wants to use this already without to wait to merge, use the following snippet in your docker-compose.yml

services:
  kroki:
    image: yuzutech/kroki
    depends_on:
      - ...
      - onlinewardleymaps
    environment:
      - ....
      - KROKI_ONLINEWARDLEYMAPS_HOST=onlinewardleymaps
....
  onlinewardleymaps:
    image: yuzutech/kroki-onlinewardleymaps
    build:
      context: https://github.com/Heiss/kroki.git#add-onlinewardleymaps:onlinewardleymaps
      dockerfile: Dockerfile
    expose:
      - "8007"

[ggrossetie]

Hey @Heiss, thanks for your contribution!

I think this tool might be a good candidate for #1423. I still need to write a formal specification 😅

[Heiss]

Hi @ggrossetie ,
thanks for replying. This means, there are major workings needed for this service as soon as you provided the spec, right?

Is there any ETA for this? I would like to use this service in my workflow with kroki and asciidoc, but i am not sitting on hot shoes. Current workaround is to export a png and include it. I am fine with this, because it does not change frequently. But i love inline code to diagrams in combination with asciidoc. ;)

[ggrossetie]

This means, there are major workings needed for this service as soon as you provided the spec, right?

I wouldn't say "major workings", you will need to make some ajustements to comply with the requirements. The specification goal is to describe how companion containers communicate with the gateway/main container.

Is there any ETA for this? I would like to use this service in my workflow with kroki and asciidoc, but i am not sitting on hot shoes. Current workaround is to export a png and include it. I am fine with this, because it does not change frequently. But i love inline code to diagrams in combination with asciidoc. ;)

It's on my TODO list but I've been quite busy!
I'm currently working on a generic diagram designer / viewer in my spare time 😉