pipeline-object-param-and-result.yaml

apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: write-param-to-result
spec:
  params:
    - name: arg
      type: object
      properties:
        url:
          type: string
        commit:
          type: string
  results:
    - name: object-result
      type: object
      properties:
        foo:
          type: string
        bar:
          type: string
  steps:
    - name: write-result
      image: bash:latest
      script: |
        #!/usr/bin/env bash
        echo -n "{\"foo\":\"$(params.arg.url)\",\"bar\":\"$(params.arg.commit)\"}" | tee $(results.object-result.path)
---
apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: echo-param
spec:
  params:
    - name: arg
      type: object
      properties:
        foo:
          type: string
        bar:
          type: string
  steps:
    - name: echo-params
      image: bash:latest
      args: [
        "echo",
        "--foo=$(params.arg.foo)",
        "--bar=$(params.arg.bar)"
      ]
---
apiVersion: tekton.dev/v1beta1
kind: Pipeline
metadata:
  name: pipeline-test
spec:
  params:
    - name: gitrepo
      properties:
        url: {}
        commit: {}
  tasks:
    - name: task1
      params:
        - name: arg
          value: $(params.gitrepo[*])
      taskRef:
        name: write-param-to-result
    - name: task2
      params:
        - name: arg
          value: "$(tasks.task1.results.object-result[*])"
      taskRef:
        name: echo-param
---
apiVersion: tekton.dev/v1beta1
kind: PipelineRun
metadata:
  name: pipelinerun-object-param-result
spec:
  params:
    - name: gitrepo
      value:
        url: abc.com
        commit: sha123
  pipelineRef:
    name: pipeline-test