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Exit Code Output Variable

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, Step, Steps, Workflow
from hera.workflows.models import Arguments, ContinueOn, Inputs, Parameter

with Workflow(
    api_version="argoproj.io/v1alpha1",
    kind="Workflow",
    generate_name="exit-code-output-variable-",
    entrypoint="exit-code-output-variable",
) as w:
    with Steps(
        name="exit-code-output-variable",
    ) as invocator:
        Step(
            name="failing-container",
            continue_on=ContinueOn(
                failed=True,
            ),
            template="failing-container",
        )
        Step(
            arguments=Arguments(
                parameters=[
                    Parameter(
                        name="exitCode",
                        value="{{steps.failing-container.exitCode}}",
                    )
                ],
            ),
            name="echo-container",
            template="echo-container",
        )
    Container(
        name="failing-container",
        args=["exit 123"],
        command=["sh", "-c"],
        image="alpine:3.6",
    )
    Container(
        inputs=Inputs(
            parameters=[
                Parameter(
                    name="exitCode",
                )
            ],
        ),
        name="echo-container",
        args=['echo "Exit code was: {{inputs.parameters.exitCode}}"'],
        command=["sh", "-c"],
        image="alpine:3.6",
    )

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apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: exit-code-output-variable-
spec:
  entrypoint: exit-code-output-variable
  templates:
  - name: exit-code-output-variable
    steps:
    - - name: failing-container
        template: failing-container
        continueOn:
          failed: true
    - - name: echo-container
        template: echo-container
        arguments:
          parameters:
          - name: exitCode
            value: '{{steps.failing-container.exitCode}}'
  - name: failing-container
    container:
      image: alpine:3.6
      args:
      - exit 123
      command:
      - sh
      - -c
  - name: echo-container
    container:
      image: alpine:3.6
      args:
      - 'echo "Exit code was: {{inputs.parameters.exitCode}}"'
      command:
      - sh
      - -c
    inputs:
      parameters:
      - name: exitCode

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