Jenkins Pipeline中的环境没有变量

Question

Because I couldn't use an environment variable that I thought should exist, I printed all the environment variables in my Jenkins Pipeline script:

node {

  for(e in env) {
     print "key = ${e.key}, value = ${e.value}"
  }

}

This prints:

key = null, value = null

I'm very surprised by this.

Why are there no environment variables?

Answer 1

Seems to be a bug/limitation. If you look at the implementation , there is no support for iteration.

The following works as a workaround:

node {
  for(e in env.getEnvironment()) {
     print "key = ${e.key}, value = ${e.value}"
  }
}