mirror of https://github.com/kubeflow/examples.git
70 lines
2.3 KiB
Python
70 lines
2.3 KiB
Python
#!/usr/bin/env python3
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# Copyright 2019 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from kfp import dsl
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def random_num_op(low, high):
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"""Generate a random number between low and high."""
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return dsl.ContainerOp(
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name='Generate random number',
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image='python:alpine3.6',
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command=['sh', '-c'],
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arguments=['python -c "import random; print(random.randint($0, $1))" | tee $2',
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str(low), str(high), '/tmp/output'],
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file_outputs={'output': '/tmp/output'}
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)
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def flip_coin_op():
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"""Flip a coin and output heads or tails randomly."""
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return dsl.ContainerOp(
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name='Flip coin',
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image='python:alpine3.6',
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command=['sh', '-c'],
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arguments=['python -c "import random; result = \'heads\' if random.randint(0,1) == 0 '
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'else \'tails\'; print(result)" | tee /tmp/output'],
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file_outputs={'output': '/tmp/output'}
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)
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def print_op(msg):
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"""Print a message."""
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return dsl.ContainerOp(
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name='Print',
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image='alpine:3.6',
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command=['echo', msg])
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@dsl.pipeline(
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name='Conditional execution pipeline',
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description='Shows how to use dsl.Condition().'
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)
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def flipcoin_pipeline():
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flip = flip_coin_op()
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with dsl.Condition(flip.output == 'heads'):
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random_num_head = random_num_op(0, 9)
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with dsl.Condition(random_num_head.output > 5):
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print_op('heads and %s > 5!' % random_num_head.output)
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with dsl.Condition(random_num_head.output <= 5):
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print_op('heads and %s <= 5!' % random_num_head.output)
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with dsl.Condition(flip.output == 'tails'):
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random_num_tail = random_num_op(10, 19)
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with dsl.Condition(random_num_tail.output > 15):
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print_op('tails and %s > 15!' % random_num_tail.output)
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with dsl.Condition(random_num_tail.output <= 15):
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print_op('tails and %s <= 15!' % random_num_tail.output)
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