Hello, I am new to Flyte. I’ve setup flyte locally and started the demo cluster. I created a launch plan below. How do I register it and activate it so that it will show up in the UI? The found the documentation not clear about LP registration. Thank yiou!

from flytekit import LaunchPlan, current_context, task, workflow

@task
def square(val: int) -> int:
    return val * val

@workflow
def my_wf(val: int) -> int:
    result = square(val=val)
    return result

default_lp = LaunchPlan.get_default_launch_plan(current_context(), my_wf)
square_3 = default_lp(val=3)

If you want to create a new launch plan, you can use

LaunchPlan.get_or_create

.check this doc

Thanks @Kevin Su. I changed the method to LaunchPlan.get_or_create() in the script. But how do I register the launch plan and then make it available in the system / UI?

pyflyte register example.py

. it will register your LP.

I registered the LP and can see the LP in UI. However, there is no execution and I cannot kick off a run manually from UI.

launch workflow button

Thanks. However, I don’t observe the 1 minute cron schedule is being followed.

sorry, flyte scheduler isn’t enabled in demo cluster. could you try

flytectl sandbox start

instead

Thank you @Kevin Su!

@Kevin Su, flyte scheduler should work on demo. I tried running it a few days ago.

Hi @Samhita Alla, thank you for reaching out. my code to create the LP is like

@workflow
def my_wf(
    # kickoff_time: datetime, 
    val: int
    ) -> int:
    # print(f"datetime run: {kickoff_time}")
    result = square(val=val)
    return result

schedule = CronSchedule(
    schedule="*/1 * * * *",
    # kickoff_time_input_arg="kickoff_time"
)

lp = LaunchPlan.get_or_create(
    workflow=my_wf, name="lp_test_1", schedule = schedule, default_inputs={"val": 3}
)

To register I used

pyflyte register lp-test-1.py

I think you missed activating the launch plan:

flytectl update launchplan -p flytesnacks -d development <lp-name> --version <version> --activate

Hi @Samhita Alla, Yea, it worked after activating the launch plan. Thank you so much!