apiVersion: argoproj.io/v1alpha1
kind: Workflow
metadata:
  generateName: approve-
spec:
  entrypoint: approve-flow
  templates:
    - name: approve-flow
      dag:
        tasks:
          - name: A
            template: approval
          - name: B
            template: approval
            depends: "A.Succeeded"
            when: "{{ tasks.A.outputs.parameters.approve }} == pass"
          - name: C
            template: approval
            depends: "A.Succeeded"
            when: "{{ tasks.A.outputs.parameters.approve }} == pass"
          - name: D
            template: approval
            depends: "B.Succeeded && C.Succeeded"
            when: "(({{ tasks.B.outputs.parameters.approve }} == pass && {{ tasks.C.outputs.parameters.approve }} == pass))"
          - name: E
            template: approval
            depends: "B.Succeeded && C.Succeeded"
            when: "({{ tasks.B.outputs.parameters.approve }} == pass && {{ tasks.C.outputs.parameters.approve }} == pass)"
          - name: F
            template: approval
            depends: "D.Succeeded && E.Succeeded"
            when: "({{ tasks.D.outputs.parameters.approve }} == pass || {{ tasks.E.outputs.parameters.approve }} == pass)"

    - name: approval
      suspend: {}
      inputs:
        parameters:
          - name: approve
            default: 'reject'
            enum:
              - 'pass'
              - 'reject'
            description: >-
              Choose YES to continue workflow and deploy to production
      outputs:
        parameters:
          - name: approve
            valueFrom:
              supplied: {}