pipelines/samples/core/exit_handler/exit_handler.py

53 lines
1.7 KiB
Python
Executable File

#!/usr/bin/env python3
# Copyright 2019-2023 The Kubeflow Authors
#
# 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.
from kfp import dsl, components, compiler
from kfp.components import InputPath, load_component_from_url
gcs_download_op = load_component_from_url(
'https://raw.githubusercontent.com/kubeflow/pipelines/961b17fa6844e1d79e5d3686bb557d830d7b5a95/components/google-cloud/storage/download_blob/component.yaml'
)
@components.create_component_from_func
def print_file(file_path: InputPath('Any')):
"""Print a file."""
with open(file_path) as f:
print(f.read())
@components.create_component_from_func
def echo_msg(msg: str):
"""Echo a message by parameter."""
print(msg)
@dsl.pipeline(
name='exit-handler',
description=
'Downloads a message and prints it. The exit handler will run after the pipeline finishes (successfully or not).'
)
def pipeline_exit_handler(url: str = 'gs://ml-pipeline/shakespeare1.txt'):
"""A sample pipeline showing exit handler."""
exit_task = echo_msg('exit!')
with dsl.ExitHandler(exit_task):
download_task = gcs_download_op(url)
echo_task = print_file(download_task.output)
if __name__ == '__main__':
compiler.Compiler().compile(pipeline_exit_handler, __file__ + '.yaml')