将循环变量传递给Jenkinsfile中的sh不会'；正确地检查示波器

我尝试使用以下循环在Jenkins文件中动态创建作业。作业创建正确，任务名称以正确的名称显示在Jenkins中（例如

ubuntu:bionic

）

但是，在每个任务中，

sh

命令似乎无法访问

图像

，因为

${images[i]}

被评估为

null

（例如

sh ci/script.sh null

）。因此，这似乎与字符串插值的其他单引号与双引号问题不同

def images = ["ubuntu:bionic", "ubuntu:xenial"]
def tasks = [:]

for (int i = 0; i < images.size(); i++) {
  tasks["${images[i]}"] = {
    node {
      lock("build") {
        stage('checkout') {
          checkout scm
        }
        stage('test') {
          sh "ci/script.sh ${images[i]}"
        }
      }
    }
  }
}

stage("matrix") {
  parallel tasks
}

def images=[“ubuntu:bionic”，“ubuntu:xenial”]
def任务=[：]
对于（int i=0；i

---

如何正确构建这些动态命令？

您在循环中创建并分配给

任务[“${images[I]}”]

的闭包是惰性计算的，它似乎处理

images.getAt（I）

和当前的

I

值，在这种情况下，这两种情况下都等于

2

。看看下面的例子，再打印一些当前

i

状态（我跳过了

scm签出

int这个简短的例子）：

def images=[“ubuntu:bionic”，“ubuntu:xenial”]
def任务=[：]
对于（int i=0；iprintln“Using i=${i}”//这很有帮助，但是链接没有提到这里的作用域。我试图理解为什么each语句可以工作，而for（foo in bar）不能。有指针吗？
[Pipeline] echo
Using i = 0
[Pipeline] echo
Using i = 1
[Pipeline] stage
[Pipeline] { (matrix)
[Pipeline] parallel
[Pipeline] [ubuntu:bionic] { (Branch: ubuntu:bionic)
[Pipeline] [ubuntu:xenial] { (Branch: ubuntu:xenial)
[Pipeline] [ubuntu:bionic] node
[ubuntu:bionic] Running on Jenkins in /var/jenkins_home/workspace/test-pipeline
[Pipeline] [ubuntu:xenial] node
[ubuntu:xenial] Running on Jenkins in /var/jenkins_home/workspace/test-pipeline@2
[Pipeline] [ubuntu:bionic] {
[Pipeline] [ubuntu:xenial] {
[Pipeline] [ubuntu:bionic] lock
[ubuntu:bionic] Trying to acquire lock on [build]
[ubuntu:bionic] Lock acquired on [build]
[Pipeline] [ubuntu:bionic] {
[Pipeline] [ubuntu:xenial] lock
[ubuntu:xenial] Trying to acquire lock on [build]
[ubuntu:xenial] Found 0 available resource(s). Waiting for correct amount: 1.
[ubuntu:xenial] [build] is locked, waiting...
[Pipeline] [ubuntu:bionic] stage
[Pipeline] [ubuntu:bionic] { (checkout)
[Pipeline] [ubuntu:bionic] echo
[ubuntu:bionic] ok
[Pipeline] [ubuntu:bionic] }
[Pipeline] [ubuntu:bionic] // stage
[Pipeline] [ubuntu:bionic] stage
[Pipeline] [ubuntu:bionic] { (test)
[Pipeline] [ubuntu:bionic] echo
[ubuntu:bionic] Print i inside stage = 2
[Pipeline] [ubuntu:bionic] echo
[ubuntu:bionic] Echo i inside stage = 2
[Pipeline] [ubuntu:bionic] sh
[ubuntu:bionic] [test-pipeline] Running shell script
[ubuntu:bionic] + ci/script.sh null
[ubuntu:bionic] /var/jenkins_home/workspace/test-pipeline@tmp/durable-998289d1/script.sh: 2: /var/jenkins_home/workspace/test-pipeline@tmp/durable-998289d1/script.sh: ci/script.sh: not found
[Pipeline] [ubuntu:bionic] }
[Pipeline] [ubuntu:bionic] // stage
[ubuntu:xenial] Lock acquired on [build]
[Pipeline] [ubuntu:bionic] }
[ubuntu:bionic] Lock released on resource [build]
[Pipeline] [ubuntu:xenial] {
[Pipeline] [ubuntu:bionic] // lock
[Pipeline] [ubuntu:bionic] }
[Pipeline] [ubuntu:xenial] stage
[Pipeline] [ubuntu:xenial] { (checkout)
[Pipeline] [ubuntu:bionic] // node
[Pipeline] [ubuntu:bionic] }
[ubuntu:bionic] Failed in branch ubuntu:bionic
[Pipeline] [ubuntu:xenial] echo
[ubuntu:xenial] ok
[Pipeline] [ubuntu:xenial] }
[Pipeline] [ubuntu:xenial] // stage
[Pipeline] [ubuntu:xenial] stage
[Pipeline] [ubuntu:xenial] { (test)
[Pipeline] [ubuntu:xenial] echo
[ubuntu:xenial] Print i inside stage = 2
[Pipeline] [ubuntu:xenial] echo
[ubuntu:xenial] Echo i inside stage = 2
[Pipeline] [ubuntu:xenial] sh
[ubuntu:xenial] [test-pipeline@2] Running shell script
[ubuntu:xenial] + ci/script.sh null
[ubuntu:xenial] /var/jenkins_home/workspace/test-pipeline@2@tmp/durable-b1807fa2/script.sh: 2: /var/jenkins_home/workspace/test-pipeline@2@tmp/durable-b1807fa2/script.sh: ci/script.sh: not found
[Pipeline] [ubuntu:xenial] }
[Pipeline] [ubuntu:xenial] // stage
[Pipeline] [ubuntu:xenial] }
[ubuntu:xenial] Lock released on resource [build]
[Pipeline] [ubuntu:xenial] // lock
[Pipeline] [ubuntu:xenial] }
[Pipeline] [ubuntu:xenial] // node
[Pipeline] [ubuntu:xenial] }
[ubuntu:xenial] Failed in branch ubuntu:xenial
[Pipeline] // parallel
[Pipeline] }
[Pipeline] // stage
[Pipeline] End of Pipeline
ERROR: script returned exit code 127
Finished: FAILURE

[ubuntu:bionic] [test-pipeline] Running shell script
[ubuntu:bionic] + ci/script.sh ubuntu:bionic
[ubuntu:xenial] [test-pipeline@2] Running shell script
[ubuntu:xenial] + ci/script.sh ubuntu:xenial