steps.yaml

# This template demonstrates a steps template and how to control sequential vs. parallel steps.
# In this example, the hello1 completes before the hello2a, and hello2b steps, which run in parallel.
apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: steps-
spec:
  entrypoint: hello-hello-hello

  templates:
  - name: hello-hello-hello
    steps:
    - - name: hello1
        template: whalesay
        arguments:
          parameters:
          - name: message
            value: "hello1"
    - - name: hello2a
        template: whalesay
        arguments:
          parameters:
          - name: message
            value: "hello2a"
      - name: hello2b
        template: whalesay
        arguments:
          parameters:
          - name: message
            value: "hello2b"

  - name: whalesay
    inputs:
      parameters:
      - name: message
    container:
      image: docker/whalesay
      command: [cowsay]
      args: ["{{inputs.parameters.message}}"]