flip-coin example in kfp v2

v2-flip-coin.py

import kfp
from kfp import dsl


@dsl.component(base_image="quay.io/hukhan/python:3.9.17-alpine3.18")
def get_random_int_op(minimum: int, maximum: int) -> int:
    """Generate a random number between minimum and maximum (inclusive)."""
    import random
    result = random.randint(minimum, maximum)
    print(result)
    return result


@dsl.component(base_image="quay.io/hukhan/python:3.9.17-alpine3.18")
def flip_coin_op() -> str:
    """Flip a coin and output heads or tails randomly."""
    import random
    result = random.choice(['heads', 'tails'])
    print(result)
    return result


@dsl.component(base_image="quay.io/hukhan/python:3.9.17-alpine3.18")
def print_op(message: str):
    """Print a message."""
    print(message)


@dsl.component(base_image="quay.io/hukhan/python:3.9.17-alpine3.18")
def fail_op(message: str):
    """Fails."""
    import sys
    print(message)
    sys.exit(1)

@dsl.pipeline(
    name='tutorial-control-flows',
    description='Shows how to use dsl.Condition(), dsl.ParallelFor, and dsl.ExitHandler().'
)
def control_flows_pipeline():
    flip = flip_coin_op()

    with dsl.ParallelFor(['heads', 'tails']) as expected_result:

        with dsl.Condition(flip.output == expected_result):
            random_num_head = get_random_int_op(minimum=0, maximum=9)
            with dsl.Condition(random_num_head.output > 5):
                print_op(
                    message=f'{expected_result} and {random_num_head.output} > 5!'
                )
            with dsl.Condition(random_num_head.output <= 5):
                print_op(
                    message=f'{expected_result} and {random_num_head.output} <= 5!'
                )


if __name__ == '__main__':
    kfp.compiler.Compiler().compile(control_flows_pipeline, __file__ + '.yaml')