87 lines
2.2 KiB
Python
87 lines
2.2 KiB
Python
# Copyright 2022 kubeflow.org
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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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from kfp.components import load_component_from_text
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from kfp_tekton.tekton import CEL_ConditionOp
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from kfp_tekton.compiler import TektonCompiler
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class Coder:
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def empty(self):
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return ""
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TektonCompiler._get_unique_id_code = Coder.empty
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class CelCondition(dsl.Condition):
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def __init__(self, pred: str, name: str = None):
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super().__init__(CEL_ConditionOp(pred).output == 'true', name)
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def PrintOp(name: str, msg: str = None):
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if msg is None:
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msg = name
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print_op = load_component_from_text(
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"""
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name: %s
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inputs:
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- {name: input_text, type: String, description: 'Represents an input parameter.'}
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outputs:
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- {name: output_value, type: String, description: 'Represents an output paramter.'}
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implementation:
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container:
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image: alpine:3.6
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command:
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- sh
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- -c
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- |
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set -e
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echo $0 > $1
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- {inputValue: input_text}
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- {outputPath: output_value}
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""" % (name)
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)
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return print_op(msg)
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@dsl.pipeline("empty-loop")
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def condition_1(param: list = ["a", "b", "c"]):
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op0 = PrintOp("print-0")
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with CelCondition(f'{op0.output} == "print-0"'):
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op1 = PrintOp("print-1")
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# works fine for a task outside of loop:
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op2 = PrintOp("print-2")
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op2.after(op1)
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# ...but breaks for loop or task inside of a loop:
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loop = dsl.ParallelFor(param)
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loop2 = dsl.ParallelFor(param)
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# both A) and B) yield the same result:
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# A)
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loop.after(op1)
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with loop:
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op3 = PrintOp("print-3")
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with loop2:
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op4 = PrintOp("print-4")
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# B)
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op4.after(op1)
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if __name__ == '__main__':
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TektonCompiler().compile(condition_1, __file__.replace('.py', '.yaml'))
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