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Template Defaults

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 IntOrString, RetryStrategy, Template

with Workflow(
    api_version="argoproj.io/v1alpha1",
    kind="Workflow",
    annotations={
        "workflows.argoproj.io/description": "Template defaults will provide the fixability to configure the defaults values for all templates in workflow.\nIndividual template can be overide default values.\n",
        "workflows.argoproj.io/version": ">= 3.1.0",
    },
    generate_name="template-defaults-",
    entrypoint="main",
    template_defaults=Template(
        retry_strategy=RetryStrategy(
            limit=IntOrString(
                root="2",
            ),
        ),
        timeout="30s",
    ),
) as w:
    with Steps(
        name="main",
    ) as invocator:
        Step(
            name="retry-backoff",
            template="retry-backoff",
        )
        Step(
            name="hello-world",
            template="hello-world",
        )
    Container(
        name="hello-world",
        args=["hello world"],
        command=["echo"],
        image="busybox",
    )
    Container(
        name="retry-backoff",
        args=["import random; import sys; exit_code = random.choice([0, 1, 1]); sys.exit(exit_code)"],
        command=["python", "-c"],
        image="python:alpine3.6",
    )

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apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: template-defaults-
  annotations:
    workflows.argoproj.io/description: |
      Template defaults will provide the fixability to configure the defaults values for all templates in workflow.
      Individual template can be overide default values.
    workflows.argoproj.io/version: '>= 3.1.0'
spec:
  entrypoint: main
  templates:
  - name: main
    steps:
    - - name: retry-backoff
        template: retry-backoff
    - - name: hello-world
        template: hello-world
  - name: hello-world
    container:
      image: busybox
      args:
      - hello world
      command:
      - echo
  - name: retry-backoff
    container:
      image: python:alpine3.6
      args:
      - import random; import sys; exit_code = random.choice([0, 1, 1]); sys.exit(exit_code)
      command:
      - python
      - -c
  templateDefaults:
    timeout: 30s
    retryStrategy:
      limit: '2'

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