# Copyright 2018 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: helloworld-
spec:
  entrypoint: diamond
  serviceAccountName: pipeline-runner
  arguments:
    parameters:
    - name: message
      value: hello world

  templates:
  - name: diamond
    dag:
      tasks:
      - name: A
        template: echo
        arguments:
          parameters: [{name: message, value: "{{workflow.parameters.message}} from node: A"}]
      - name: B
        dependencies: [A]
        template: echo
        arguments:
          parameters: [{name: message, value: "{{workflow.parameters.message}} from node: B"}]
      - name: C
        dependencies: [A]
        template: echo
        arguments:
          parameters: [{name: message, value: "{{workflow.parameters.message}} from node: C"}]
      - name: D
        dependencies: [B, C]
        template: echo
        arguments:
          parameters: [{name: message, value: "{{workflow.parameters.message}} from node: D"}]

  - name: echo
    inputs:
      parameters:
      - name: message
    container:
      image: alpine:3.7
      command: [echo, "{{inputs.parameters.message}}"]