Define a notion of a beta/experimental extension in the tooling

[aloubyansky]

Extension authors (or extension catalog authors) should be able to indicate in the metadata that the state/quality of certain extensions is beta or experimental.

[maxandersen]

these really just need to go into k8s style metadata - then we don't have to care.

[gastaldi]

How about setting this as a Maven <property> similar to what's done in https://github.com/thorntail/thorntail/blob/master/fractions/flyway/pom.xml#L37?

[maxandersen]

the plugin to generate the metadata already take values from pom.xml - that part is really secondary; the key is how we store and manage this at the API level between extensions and our platform/registry.

[gastaldi]

I believe this information (after read from the pom.xml) will be stored in the generated extensions.json (and as a new attribute in the Extension class). Each extension author could then define in their own pom.xmls how mature the extension is.

[maxandersen]

This is possible today via quarkus-extension.yaml - just need to hear from @ia3andy if he already picked a name/value set for it.

On call today we said that for v1 its basically just about identifying wether a feature is stable or not - no grading yet.

My suggestion is to use a key named "grading" and for now only recognized value will be "preview"

[ia3andy]

@maxandersen I used "status" as a key already (we can change it):

quarkus/independent-projects/tools/platform-descriptor-api/src/main/java/io/quarkus/dependencies/Extension.java

Line 36 in 1c8ed9b

public static final String MD_STATUS = "status";

[maxandersen]

status is equally neutral to grading so i'm fine with that. lets keep it simple ;)

so "status" = "preview" is the key/value pair we'll use for v1 to mark things non-stable, ok ?