Conditional Artifacts and Parameters

v3.1 and after

You can set Step/DAG level artifacts or parameters based on an expression. Use fromExpression under a Step/DAG level output artifact and expression under a Step/DAG level output parameter.

Conditional Artifacts

- name: coinflip
  steps:
    - - name: flip-coin
        template: flip-coin
    - - name: heads
        template: heads
        when: "{{steps.flip-coin.outputs.result}} == heads"
      - name: tails
        template: tails
        when: "{{steps.flip-coin.outputs.result}} == tails"
  outputs:
    artifacts:
      - name: result
        fromExpression: "steps['flip-coin'].outputs.result == 'heads' ? steps.heads.outputs.artifacts.headsresult : steps.tails.outputs.artifacts.tailsresult"

• Steps artifacts example
• DAG artifacts example

Conditional Parameters

    - name: coinflip
      steps:
        - - name: flip-coin
            template: flip-coin
        - - name: heads
            template: heads
            when: "{{steps.flip-coin.outputs.result}} == heads"
          - name: tails
            template: tails
            when: "{{steps.flip-coin.outputs.result}} == tails"
      outputs:
        parameters:
          - name: stepresult
            valueFrom:
              expression: "steps['flip-coin'].outputs.result == 'heads' ? steps.heads.outputs.result : steps.tails.outputs.result"

• Steps parameter example
• DAG parameter example
• Advanced example: fibonacci Sequence

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