Trying to fix the problems for Tekton Script

Here are three scripts for Tekton. It did not find git directory and compile with mvn due to the missing pom.xml. I tried to fix the problems by revising task, pipeline and pipelinerun but it is not fixed. Where am I supposed to revise the script to fix the issue?

I tried to fix the workspace path and used static path to resolve the issue; however, it did not work.

Task:

apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: maven-build
spec:
  workspaces:
    - name: source
  params:
    - name: package
      type: string
  steps:
    - name: build
      image: maven:3.8.6-openjdk-11
      script: |
        #!/bin/sh
        echo "=== Checking workspace contents ==="
        ls -lah $(workspaces.source.path)

        # 저장소 폴더로 이동
        cd $(workspaces.source.path)/tekton-tutorial-greeter

        # 프로젝트가 있는지 확인
        if [ ! -f "pom.xml" ]; then
          echo "ERROR: pom.xml not found! Exiting..."
          exit 1
        fi

        mvn clean package
        cp target/*.jar $(workspaces.source.path)/$(params.package).jar

Pipeline:

apiVersion: tekton.dev/v1beta1
kind: Pipeline
metadata:
  name: greeter-maven-build-pipeline
spec:
  params:
    - name: repo-url
      type: string
      default: "https://github.com/gitops-cookbook/tekton-tutorial-greeter.git"
    - name: revision
      type: string
      default: "main"
    - name: image-name
      type: string
      default: "greeter-app"
  workspaces:
    - name: shared-workspace
  tasks:
    - name: fetch-source
      taskRef:
        name: git-clone
      params:
        - name: url
          value: "$(params.repo-url)"
        - name: revision
          value: "$(params.revision)"
      workspaces:
        - name: output
          workspace: shared-workspace
    - name: build-and-package
      taskRef:
        name: maven-build
      runAfter:
        - fetch-source
      params:
        - name: package
          value: "$(params.image-name)"
      workspaces:
        - name: source
          workspace: shared-workspace

pipelinerun:

apiVersion: tekton.dev/v1beta1
kind: PipelineRun
metadata:
  name: greeter-maven-build-run
spec:
  pipelineRef:
    name: greeter-maven-build-pipeline
  workspaces:
    - name: shared-workspace
      emptyDir: {}
  params:
    - name: repo-url
      value: "https://github.com/gitops-cookbook/tekton-tutorial-greeter.git"
    - name: revision
      value: "master"
    - name: image-name
      value: "greeter-app"

Log:

task build-and-package has failed: "step-build" exited with code 1
[build-and-package : build] === Checking workspace contents ===
[build-and-package : build] total 8.0K
[build-and-package : build] drwxrwxrwx 2 root root 4.0K Mar 29 07:46 .
[build-and-package : build] drwxrwxrwx 3 root root 4.0K Mar 29 07:46 ..
[build-and-package : build] /tekton/scripts/script-0-7cbds: 6: cd: can't cd to /workspace/source/tekton-tutorial-greeter
[build-and-package : build] ERROR: pom.xml not found! Exiting...

failed to get logs for task build-and-package : container step-build has failed  : [{"key":"StartedAt","value":"2025-03-29T07:46:57.141Z","type":3}]

It is not problem with script but with workspace. You need to have "persistent" workspace between fetch-source and build-and-package package tasks. The easiest is to change your workspace definition in the pipeline run to this:

  workspaces:
    - name: workspace
      volumeClaimTemplate:
        spec:
          accessModes:
            - ReadWriteOnce
          resources:
            requests:
              storage: 1Gi

another option is to create pvc first and then use it in the pipeline run.