Is it posibble to create dynamic dependsOn values?

[juangon]

Hi!
I have a DependentResource (Ingress) that depending on other dependendant's reconcilePrecondition should use a dependsOn list or other different (because some depedent will exists or not). Is it possible to create a dynamic "dependsOn" list for some Depedent resource?

Thanks very much!

[metacosm]

I'm not sure I understand… Could you maybe detail your use case more, please? Shouldn't your dependent just implement a reconcilePrecondition to say that it should only be created if some other dependent exists?

[metacosm]

Yes, this should be doable with a reconcile precondition on A where the precondition is checking which resources it needs to wait on based on whether B or C are created. At least, that's what I would try first.

[juangon]

So the reconcilePrecondition is evaluated multiple times, not once right? I that case there I could check the status, not only the spec

[metacosm]

Hmm, you probably shouldn't store external state in the status… See https://javaoperatorsdk.io/docs/dependent-resources#external-state-tracking-dependent-resources (but maybe that's not what you're doing).
To be clearer, it's fine to make decisions based on resources' status (like, for example, if a pod is ready or not).

[juangon]

Oh sure, I mean I could check if dependent resource status has some expected status so the condition is true ir false

[csviri]

So the reconcilePrecondition is evaluated multiple times, not once right? I that case there I could check the status, not only the spec

I mean it will be triggered again (the whole reconiliation) anyway if some of other resources (B,C) changes.