apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  annotations:
    pipelines.kubeflow.org/pipeline_spec: '{"name": "artifact_passing_pipeline"}'
  generateName: artifact-passing-pipeline-
spec:
  arguments:
    parameters: []
  entrypoint: artifact-passing-pipeline
  serviceAccountName: pipeline-runner
  templates:
  - name: artifact-passing-pipeline
    dag:
      tasks:
      - name: consumer
        template: consumer
        arguments:
          parameters:
          - name: processor-Output-1
            value: '{{tasks.processor.outputs.parameters.processor-Output-1}}'
          - name: processor-Output-2-subpath
            value: '{{tasks.processor.outputs.parameters.processor-Output-2-subpath}}'
        dependencies:
        - processor
      - name: processor
        template: processor
        arguments:
          parameters:
          - name: producer-Output-1
            value: '{{tasks.producer.outputs.parameters.producer-Output-1}}'
          - name: producer-Output-2-subpath
            value: '{{tasks.producer.outputs.parameters.producer-Output-2-subpath}}'
        dependencies:
        - producer
      - name: producer
        template: producer
  - name: consumer
    metadata:
      annotations:
        pipelines.kubeflow.org/component_spec: '{"inputs": [{"name": "Input parameter"}, {"name": "Input artifact"}], "name": "Consumer"}'
    inputs:
      parameters:
      - name: processor-Output-1
      - name: processor-Output-2-subpath
    container:
      image: alpine
      command:
      - sh
      - -c
      - |
        echo "Input parameter = $0"
        echo "Input artifact = " && cat "$1"
      args:
      - '{{inputs.parameters.processor-Output-1}}'
      - /tmp/inputs/Input_artifact/data
      volumeMounts:
      - name: data-storage
        mountPath: /tmp/inputs/Input_artifact
        readOnly: true
        subPath: '{{inputs.parameters.processor-Output-2-subpath}}'
  - name: processor
    metadata:
      annotations:
        pipelines.kubeflow.org/component_spec: '{"inputs": [{"name": "Input parameter"}, {"name": "Input artifact"}], "name": "Processor", "outputs": [{"name": "Output 1"}, {"name": "Output 2"}]}'
    inputs:
      parameters:
      - name: producer-Output-1
      - name: producer-Output-2-subpath
    outputs:
      parameters:
      - name: processor-Output-1
        valueFrom:
          path: /tmp/outputs/Output_1/data
      - name: processor-Output-1-subpath
        value: artifact_data/{{workflow.uid}}_{{pod.name}}/processor-Output-1
      - name: processor-Output-2-subpath
        value: artifact_data/{{workflow.uid}}_{{pod.name}}/processor-Output-2
    container:
      image: alpine
      command:
      - sh
      - -c
      - |
        mkdir -p "$(dirname "$2")"
        mkdir -p "$(dirname "$3")"
        echo "$0" > "$2"
        cp "$1" "$3"
      args:
      - '{{inputs.parameters.producer-Output-1}}'
      - /tmp/inputs/Input_artifact/data
      - /tmp/outputs/Output_1/data
      - /tmp/outputs/Output_2/data
      volumeMounts:
      - mountPath: /tmp/inputs/Input_artifact
        name: data-storage
        readOnly: true
        subPath: '{{inputs.parameters.producer-Output-2-subpath}}'
      - mountPath: /tmp/outputs/Output_1
        name: data-storage
        subPath: artifact_data/{{workflow.uid}}_{{pod.name}}/processor-Output-1
      - mountPath: /tmp/outputs/Output_2
        name: data-storage
        subPath: artifact_data/{{workflow.uid}}_{{pod.name}}/processor-Output-2
  - name: producer
    metadata:
      annotations:
        pipelines.kubeflow.org/component_spec: '{"name": "Producer", "outputs": [{"name": "Output 1"}, {"name": "Output 2"}]}'
    outputs:
      parameters:
      - name: producer-Output-1
        valueFrom:
          path: /tmp/outputs/Output_1/data
      - name: producer-Output-1-subpath
        value: artifact_data/{{workflow.uid}}_{{pod.name}}/producer-Output-1
      - name: producer-Output-2-subpath
        value: artifact_data/{{workflow.uid}}_{{pod.name}}/producer-Output-2
    container:
      image: alpine
      command:
      - sh
      - -c
      - |
        mkdir -p "$(dirname "$0")"
        mkdir -p "$(dirname "$1")"
        echo "Data 1" > $0
        echo "Data 2" > $1
      args:
      - /tmp/outputs/Output_1/data
      - /tmp/outputs/Output_2/data
      volumeMounts:
      - mountPath: /tmp/outputs/Output_1
        name: data-storage
        subPath: artifact_data/{{workflow.uid}}_{{pod.name}}/producer-Output-1
      - mountPath: /tmp/outputs/Output_2
        name: data-storage
        subPath: artifact_data/{{workflow.uid}}_{{pod.name}}/producer-Output-2
  volumes:
  - name: data-storage
    persistentVolumeClaim:
      claimName: data-volume