Conditional pipelinerun - Pipeline definition

conditional-pipelinerun-pipeline.yaml

---
apiVersion: tekton.dev/v1beta1
kind: Pipeline
metadata:
  name: conditional-pipeline
spec:
  resources:
    - name: source-repo
      type: git
  params:
    - name: "path"
      default: "README.md"
  tasks:
    - name: first-create-file
      taskRef:
        name: create-readme-file
      resources:
        outputs:
          - name: workspace
            resource: source-repo
    - name: then-check
      conditions:
        - conditionRef: "file-exists"
          params:
            - name: "path"
              value: "$(params.path)"
          resources:
            - name: workspace
              resource: source-repo
              from: [first-create-file]
      taskRef:
        name: echo-hello