downstream job unable to access default jenkins variable

[ghost]

Downstream job is not able access BUILD_NUMBER from default JenkinsSetEnvironmentVariables

Based on the following .ci.yml

plugins:
  - downstream_job:
      on_result: SUCCESS
      foo/bar:
        VERSION: <% out<< printf("%06d", BUILD_NUMBER.toInteger()) << "-" << DOTCI_SHA.substring(0,10) %>
        BRANCH: master

Resulted in null per attached output from foo/bar

Aside from groovy script, I don't see any way to compute values to pass dynamic variable to build parameters since bash commands will not work outside of the build run section.

[ghost]

Also confirmed Downstream job is not able to pass the default String Parameter values that a job may have configured ...

For example job/foo/job/bar/configured with IMAGE default as "mysql" and TAG default as "5.7"

but its invocation via downstream results in the following console error output

$ docker pull $IMAGE:$TAG

instead of the following console output when invoked manually (i.e. not downstream job)

$ docker pull mysql:5.7

[raulvc]

sorry for bringing this back from the shadows, have you found a way to work around this issue?

I stumbled upon this because I have to dynamically generate a var in a build and pass it to the downstream job (unfortunately I can't directly use the parameterized trigger build plugin for this purpose)