run.py

"""
Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserve.

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 paddleflow.pipeline import ContainerStep
from paddleflow.pipeline import Pipeline
from paddleflow.pipeline import Parameter

def step1(num):
    """ step with condition
    """
    step = ContainerStep(
        name="step1",
        parameters={"num": num}
        )
    step.command = f"echo {step.parameters['num']}"
    step.condition = f"{step.parameters['num']} > 0"
    return step

def step2(num):
    """ step with condition
    """
    step = ContainerStep(
        name="step2",
        parameters={"num": num}
        )
    step.command = f"echo {step.parameters['num']}"
    step.condition = f"{step.parameters['num']} < 0"
    return step
    

@Pipeline(name="condition_example", docker_env="nginx:1.7.9", parallelism=2)
def condition_example(num=10):
    """ pipeline example for artifact
    """
    step1(num)
    step2(num)
    

if __name__ == "__main__":
    ppl = condition_example()
    ppl.compile("dag.yaml")
    print(ppl.run())