Getting System Variables in Webhooks

[Matthias Oberleitner]

I'm creating a build webhook, and in my project there is a script task which creates a container. I need to know the container ID which is a variable inside the script.

In my script I tried to export TEST="TEST" and use it in my webhook template ${system.TEST} as noted in "System Variables"

https://confluence.atlassian.com/bamboo/bamboo-variables-289277087.html

However when I add it the webhook doesn't work anymore.

Does anyone have any idea how I can get the container ID into the webhook?