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#ask-the-community
Title
# ask-the-community
f

Frank Shen

10/10/2022, 7:00 PM
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!
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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)
Hi @Kevin Su, Do you have any advices?
k

Kevin Su

10/10/2022, 9:14 PM
If you want to create a new launch plan, you can use
LaunchPlan.get_or_create
.check this doc
f

Frank Shen

10/10/2022, 9:53 PM
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?
Which command will do that?
k

Kevin Su

10/10/2022, 9:56 PM
pyflyte register example.py
. it will register your LP.
f

Frank Shen

10/10/2022, 10:28 PM
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.
And I am confused about the
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kickoff_time_input_arg="kickoff_time"
in
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schedule=CronSchedule(
        schedule="*/1 * * * *",  
        kickoff_time_input_arg="kickoff_time",
    )
How do I create new execution?
k

Kevin Su

10/10/2022, 10:33 PM
launch workflow button
f

Frank Shen

10/10/2022, 10:49 PM
Thanks. However, I don’t observe the 1 minute cron schedule is being followed.
It only ran once.
flyte-sandbox
k

Kevin Su

10/10/2022, 11:07 PM
sorry, flyte scheduler isn’t enabled in demo cluster. could you try
flytectl sandbox start
instead
f

Frank Shen

10/10/2022, 11:09 PM
Thank you @Kevin Su!
s

Samhita Alla

10/11/2022, 4:28 AM
@Kevin Su, flyte scheduler should work on demo. I tried running it a few days ago.
@Frank Shen, what are the commands you ran to register and schedule your launch plan?
f

Frank Shen

10/11/2022, 5:00 PM
Hi @Samhita Alla, thank you for reaching out. my code to create the LP is like
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@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
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pyflyte register lp-test-1.py
However, there is no executions.
I tried sandbox cluster and it looks the same.
s

Samhita Alla

10/12/2022, 6:09 AM
I think you missed activating the launch plan:
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flytectl update launchplan -p flytesnacks -d development <lp-name> --version <version> --activate
f

Frank Shen

10/12/2022, 4:20 PM
Hi @Samhita Alla, Yea, it worked after activating the launch plan. Thank you so much!
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