examples/pipelines-demo/dsl/data-passing.py

58 lines
1.6 KiB
Python

# Copyright 2023 kbthu. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import kfp
from kfp import dsl
from kfp.components import func_to_container_op
from typing import NamedTuple
@func_to_container_op
def calculate_op(a: float, b: float) -> NamedTuple(
'MyOutputs',
[
('sum', float),
('product', float)
]):
return (a + b, a * b)
def echo_func(sum: float, product: float):
cop = dsl.ContainerOp(
name='echo_func',
image='bash:5.1',
command=['sh', '-c'],
arguments=['echo sum %s product %s | tee /out.txt' % (sum, product)],
file_outputs={'out': '/out.txt'},
)
cop.container.set_image_pull_policy('IfNotPresent')
return cop
@dsl.pipeline(
name='Kubeflow data passing example',
description='Demonstrate the data passing between Kubeflow funcs'
)
def data_passing(
a: dsl.PipelineParam(name='a', value=2),
b: dsl.PipelineParam(name='b', value=3)
):
result = calculate_op(a, b)
echo_func(result.outputs['sum'], result.outputs['product'])
if __name__ == '__main__':
import kfp.compiler as compiler
compiler.Compiler().compile(data_passing, __file__ + '.yaml')