Suspend Template Outputs

Note

This example is a replication of an Argo Workflow example in Hera. The upstream example can be found here.

HeraYAML

from hera.workflows import Container, Step, Steps, Workflow
from hera.workflows.models import Outputs, Parameter, SuppliedValueFrom, SuspendTemplate, Template, ValueFrom

with Workflow(
    name="suspend-outputs",
    entrypoint="suspend",
) as w:
    print_message = Container(
        name="print-message",
        image="busybox",
        command=["echo"],
        inputs=[Parameter(name="message")],
        args=["{{inputs.parameters.message}}"],
    )

    with Steps(name="suspend"):
        Step(
            name="approve",
            template=Template(
                name="approve",
                suspend=SuspendTemplate(),
                outputs=Outputs(
                    parameters=[
                        Parameter(
                            name="message",
                            value_from=ValueFrom(supplied=SuppliedValueFrom()),
                        )
                    ]
                ),
            ),
        )
        print_message(name="release", arguments={"message": "{{steps.approve.outputs.parameters.message}}"})

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  name: suspend-outputs
spec:
  entrypoint: suspend
  templates:
  - name: print-message
    container:
      image: busybox
      args:
      - '{{inputs.parameters.message}}'
      command:
      - echo
    inputs:
      parameters:
      - name: message
  - name: suspend
    steps:
    - - name: approve
        template: approve
    - - name: release
        template: print-message
        arguments:
          parameters:
          - name: message
            value: '{{steps.approve.outputs.parameters.message}}'
  - name: approve
    outputs:
      parameters:
      - name: message
        valueFrom:
          supplied: {}
    suspend: {}

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