DSL Condition Feature/Bug

[gaoning777]

For example:

import kfp.dsl as dsl

class FlipCoinOp(dsl.ContainerOp):

  def __init__(self, name):
    super(FlipCoinOp, self).__init__(
        name=name,
        image='python:alpine3.6',
        command=['sh', '-c'],
        arguments=['python -c "import random; result = \'heads\' if random.randint(0,1) == 0 '
                   'else \'tails\'; print(result)" | tee /tmp/output'],
        file_outputs={'output': '/tmp/output'})


class PrintOp(dsl.ContainerOp):

  def __init__(self, name):
    super(PrintOp, self).__init__(
        name=name,
        image='alpine:3.6',
        command=['echo', '"it was tail"'])


@dsl.pipeline(
    name='pipeline flip coin loop',
    description='shows how to use dsl.Loop.'
)
def flipcoinloop():
  flip = FlipCoinOp('flip')

  with dsl.Condition(flip.output=='tails'):
    PrintOp('tails')
    flip = FlipCoinOp('flip2')

  with dsl.Condition(flip.output=='heads'):
    PrintOp('heads')

if __name__ == '__main__':
  import kfp.compiler as compiler
  compiler.Compiler().compile(flipcoinloop, __file__ + '.tar.gz')

When users use the 'flip' variable a second time, the generated execution turns out to be：

[rileyjbauer]

It sounds like you just need to update your UI pod. There were some changes made in #293 that changed how the frontend generated these graphs (in sync with a change to the way the DSL compiled conditional pipelines). The most up-to-date UI shows the following. Let me know if this doesn't seem right:

[gaoning777]

Cool. Thanks Riley