Tekton脚本构建失败：Git目录及pom.xml缺失问题修复咨询

问题根源分析 #

从日志可定位两个核心问题：

• Git克隆任务未拉取到代码：ls -lah显示工作空间为空，原因是PipelineRun中指定的revision为master，但目标仓库的有效分支是main，导致克隆失败。
• 目录切换路径错误：即使克隆成功，Task中尝试进入$(workspaces.source.path)/tekton-tutorial-greeter也不符合逻辑——默认git-clone任务会将代码直接克隆到工作空间根目录，不会自动创建以仓库名为名的子目录。

修复步骤 #

1. 修正PipelineRun的分支参数 #

将revision的值改为仓库实际存在的main分支：

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: "main"  # 从master改为main
    - name: image-name
      value: "greeter-app"

2. 修正maven-build Task的目录逻辑 #

去掉多余的子目录路径，直接切换到工作空间根目录（代码克隆的默认位置）：

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)

        # 直接切换到代码根目录
        cd $(workspaces.source.path)

        # 检查项目是否存在
        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

可选：指定Git克隆到子目录（保留原路径逻辑） #

如果希望代码克隆到指定子目录，可在Pipeline的fetch-source任务中添加subdirectory参数，这样原Task中的路径无需修改：

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)"
        - name: subdirectory  # 添加参数指定克隆到子目录
          value: "tekton-tutorial-greeter"
      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

验证修复 #

重新部署修改后的资源并执行PipelineRun：

kubectl apply -f maven-build-task.yaml
kubectl apply -f greeter-pipeline.yaml
kubectl apply -f greeter-pipelinerun.yaml

查看日志确认代码克隆成功，Maven构建正常完成。

内容的提问来源于stack exchange，提问作者Joseph