Allow individual extensions to contribute codestarts

[maxandersen]

Ability for individual extensions to contribute a codestart.

Idea is to have an additional artifact (i.e. codestarts) similar to how extension has a runtime and deployment artifact.

Will be added when the codestarts structure have matured in platform.

Part of #8134

[quarkusbot]

/cc @quarkusio/devtools, @ia3andy

[ia3andy]

@aloubyansky would your new changes in the API affect this? Can I still start from the branch you created a few month ago (I think this one: https://github.com/aloubyansky/quarkus/tree/codestart-artifacts)?

[ia3andy]

This issue is also related to #11153 providing the testing library for extension codestarts.

[aloubyansky]

If it is adding a codestart resource loader of some sort to Extension then yes, it will conflict. A codestart artifact coords should be added to the metadata in the descriptor and collected from there. I have decoupled the "Platform descriptor" from resource loaders. There could still be another class gathering them together of course.

[aloubyansky]

@ia3andy given that codestarts artifacts referenced from the extension metadata are now added to the codestarts resource loader, do you still want to keep this one open?

[ia3andy]

@aloubyansky Let's say this issue is done when we have a working Quarkiverse extension with an extension codestart with testing.

[ia3andy]

https://quarkus.io/guides/extension-codestart#writing-an-extension-codestart-in-the-quarkiverse-or-standalone

[tarilabs]

@ia3andy @aloubyansky hi, if I understand correctly, I can follow the above guide now to create a Codestart also for platform's extensions such as Kogito; for example, in order to have for https://quarkus.io/guides/kogito-dmn also the airplane icon when selecting the extension in https://code.quarkus.redhat.com, is my understanding correct please?

/cc @danielezonca

[ia3andy]

@tarilabs yes, the airplane icon will soon (2.2) be replaced by the [code] tag like on https://code.quarkus.io/. But it works the same.

Also, extension codestarts should not contain business/example logic, but initial/hello code to start developing from. Is DMN fitting this? from a quick look at the quickstart, it seems it does, a few extra resources files right?

[tarilabs]

@ia3andy thank you for feedback, re:

extension codestarts should not contain business/example logic, but initial/hello code to start developing from. Is DMN fitting this? from a quick look at the quickstart, it seems it does, a few extra resources files right?

any Kogito extension deals with expressing business logic with DMN, DRL, etc resource assets, so the moment I drop a DMN resource it will contain some form of logic anyway. I would like for the Codestart to have this "logic" veeery trivial as described here

That's a DMN-hello world kind of example, from my perspective.

The reason I'm asking, is that I got on my laps a PM request for a Codestart (in addition to the exiting Quickstart which is more evolved) with a simple DMN example, and I believe that fits. As I noticed this github issue is resolved, I wanted to start working on that request I received.

I will proceed in this way unless there are outstanding comments, thank you again for your confirmation in the meantime!

[ia3andy]

@ia3andy thank you for feedback, re:

extension codestarts should not contain business/example logic, but initial/hello code to start developing from. Is DMN fitting this? from a quick look at the quickstart, it seems it does, a few extra resources files right?

any Kogito extension deals with expressing business logic with DMN, DRL, etc resource assets, so the moment I drop a DMN resource it will contain some form of logic anyway. I would like for the Codestart to have this "logic" veeery trivial as described here

That's a DMN-hello world kind of example, from my perspective.

The reason I'm asking, is that I got on my laps a PM request for a Codestart (in addition to the exiting Quickstart which is more evolved) with a simple DMN example, and I believe that fits. As I noticed this github issue is resolved, I wanted to start working on that request I received.

I will proceed in this way unless there are outstanding comments, thank you again for your confirmation in the meantime!

That sounds good @tarilabs.

Let me know how it goes, it's all pretty fresh :) don't hesitate if you have a problem or something seems wrong..