template.yaml

entrypoint: main
templates:
  - name: main
    dag:
      tasks:
      - name: metrics-mocker
        template: metrics-mocker
      - name: metrics-writer
        template: metrics-writer
        dependencies: [metrics-mocker]
        arguments:
          # Use sys-metrics artifact output from metrics-mocker
          # Note that this output is automatically available from previous task
          artifacts:
          - name: sys-metrics
            from: "{{tasks.metrics-mocker.outputs.artifacts.sys-metrics}}"

  - name: metrics-mocker
    script:
      image: python:3.9.1-alpine
      command: [python, '-u']
      source: |
        import json

        # Mock metrics
        metrics = [
            {'name': 'accuracy', 'value': 0.981},
            {'name': 'loss', 'value': 0.018},
        ]
        
        # Write mock metrics to `/tmp/sys-metrics.json`
        # Writing to this exact file automatically exposes this file to next Workflow task
        with open('/tmp/sys-metrics.json', 'w') as f:
            json.dump(metrics, f)
  - name: metrics-writer
    inputs:
      artifacts:
      - name: sys-metrics
        path: /tmp/sys-metrics.json
      - git:
          repo: https://github.com/onepanelio/templates.git
          revision: v0.18.0
        name: src
        path: /mnt/src
    container:
      image: onepanel/python-sdk:v0.19.0
      command:
        - python
        - -u
      args:
        - /mnt/src/tasks/metrics-writer/main.py
        - --from_file=/tmp/sys-metrics.json