Dag With Script Output Param Passing

HeraYAML

from hera.workflows import (
    DAG,
    Parameter,
    Task,
    Workflow,
    models as m,
    script,
)


@script(outputs=[Parameter(name="a", value_from=m.ValueFrom(path="/test"))])
def out():
    with open("/test", "w") as f_out:
        f_out.write("test")


@script()
def in_(a):
    print(a)


with Workflow(generate_name="script-output-param-passing-", entrypoint="d") as w:
    with DAG(name="d"):
        t1: Task = out()
        t2 = in_(arguments=t1.get_parameter("a"))
        t1 >> t2

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: script-output-param-passing-
spec:
  entrypoint: d
  templates:
  - dag:
      tasks:
      - name: out
        template: out
      - arguments:
          parameters:
          - name: a
            value: '{{tasks.out.outputs.parameters.a}}'
        depends: out
        name: in-
        template: in-
    name: d
  - name: out
    outputs:
      parameters:
      - name: a
        valueFrom:
          path: /test
    script:
      command:
      - python
      image: python:3.8
      source: |-
        import os
        import sys
        sys.path.append(os.getcwd())
        with open('/test', 'w') as f_out:
            f_out.write('test')
  - inputs:
      parameters:
      - name: a
    name: in-
    script:
      command:
      - python
      image: python:3.8
      source: |-
        import os
        import sys
        sys.path.append(os.getcwd())
        import json
        try: a = json.loads(r'''{{inputs.parameters.a}}''')
        except: a = r'''{{inputs.parameters.a}}'''

        print(a)

Dag With Script Output Param Passing

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