hi not sure if this is right channel - my use case requires a clock/schedule that supports RRules (iCal style recurrences) which the current clock impls don’t support. I’ve implemented an

RRRuleClock

and

RRuleSchedule

(which is really just a function similar to other Prefect

Schedule

creators). however the flow won’t run b/c it doesn’t know how to serialize my

RRuleClock

. I assume I need to write a

RRuleClockSchema

so that Marshmallow will know how to serialize it. but, where I’m unclear is, it seems like I need to then add it to the

type_schemas

here https://github.com/PrefectHQ/prefect/blob/a9270d965aee1e2182843e7fa75d18e1054230d0/src/prefect/serialization/schedule.py#L92. I can add to the map directly via the class, but that would obv only work locally (if at all) not on all the distributed agents. is there another way to register the

RRuleClockSchema

so it can get serialized? if not it seems like I need to fork prefect code and run agents with my

RRuleClock

codebase, while contributing my clock impl PR back into main branch. lmk if I’m missing something here and there’s a better way to go about this

Hey @Nitay J, you are not missing anything. You would have to make your own fork and install that on agents to get this to work. Will ask the core team to view this and see if we’d be interested in a contribution (if you’re willing to PR it)

k ye I can make a PR for it

Otherwise you may have to use the RRuleSchedule to return one of the supported clocks.

meaning implement rrules using existing clocks? not sure that’s possible for some edge cases, rrules have a wide feature set

I see

would be nice to get this in so we dont have to keep this fork of prefect code indefinitely. also this seems like something others could benefit from - rrule is likely the most feature-rich clock scheduling scheme out there

This is. Most prefect stuff uses

pendulum

. Btw before you dive too deep, I need to hear back if we would accept the PR from the core team. I should have an answer a but later.

ye i saw the use of pendulum, but i still dont get if I should e.g support naive and tz-aware, raise exceptions on naive, etc?

Some people just fork and keep a pinned versioned like that approach you mentioned. I have seen it with a custom RunConfig. Will ping someone for the pendulum question.

ok here’s first take then - https://github.com/PrefectHQ/prefect/pull/4901

They’ll review it (and probably respond there instead of Slack)

👍 sg thx

Will forward to the core team

Hey Nitay, when developing against Prefect Server you do have to have the repo checked out and do

prefect-server dev infrastructure

then

prefect-server dev services

to run a local development instance

habit i guess, am used to being able to have the quick local dev while not having to install pkgs (even if just links via -e). its nbd though I can do the pip install method as u described

I'm also okay with accepting the

__main__

PR

sg. quick noob q - how do I run just the UI - I got the other bits working but am in a deep rabbit hole with fontawesome - I don’t have a pro account and whn I change the references throughout to the free version its still not authenticating and downloading for some reason. I don’t actually need to change anything with UI just want to be able to run it individually (since I’m running infra / services via code), how do I do this?

See this

Hi what’s the normal turn around time for a PR i.e when should I expect feedback on https://github.com/PrefectHQ/prefect/pull/4901 submitted week ago

Hi @Nitay J apologies on the delay in PR review; normally the team is lightning fast with reviews, but I got looped in on this one and it fell off my radar, so my personal apologies! I'll have you a review in the next 24 hours 👍