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Exit Handler Step Level

Note

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

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from hera.workflows import Container, Parameter, Steps, Workflow
from hera.workflows.models import LifecycleHook

with Workflow(
    generate_name="exit-handler-step-level-",
    entrypoint="main",
) as w:
    exit_ = Container(
        name="exit",
        image="busybox",
        command=["echo"],
        args=["step cleanup"],
    )
    print_message = Container(
        name="print-message",
        inputs=[Parameter(name="message")],
        image="busybox",
        command=["echo"],
        args=["{{inputs.parameters.message}}"],
    )
    with Steps(name="main") as s:
        print_message(
            name="hello1",
            arguments=[Parameter(name="message", value="hello1")],
            hooks={"exit": LifecycleHook(template=exit_.name)},
        )
        with s.parallel():
            print_message(
                name="hello2a",
                arguments=[Parameter(name="message", value="hello2a")],
                hooks={"exit": LifecycleHook(template=exit_.name)},
            )
            print_message(
                name="hello2b",
                arguments=[Parameter(name="message", value="hello2b")],
                hooks={"exit": LifecycleHook(template=exit_.name)},
            )

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apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: exit-handler-step-level-
spec:
  entrypoint: main
  templates:
  - name: exit
    container:
      image: busybox
      args:
      - step cleanup
      command:
      - echo
  - name: print-message
    container:
      image: busybox
      args:
      - '{{inputs.parameters.message}}'
      command:
      - echo
    inputs:
      parameters:
      - name: message
  - name: main
    steps:
    - - name: hello1
        template: print-message
        arguments:
          parameters:
          - name: message
            value: hello1
        hooks:
          exit:
            template: exit
    - - name: hello2a
        template: print-message
        arguments:
          parameters:
          - name: message
            value: hello2a
        hooks:
          exit:
            template: exit
      - name: hello2b
        template: print-message
        arguments:
          parameters:
          - name: message
            value: hello2b
        hooks:
          exit:
            template: exit

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