Hi,
Basically far as I've tried, this plugin is not working properly with the latest version of rundeck (30.26 and or 3.1.0), and with the latest version of salt-api. At the moment of Run this plugin, it seems that everything is configured correctly but Rundeck get stuck waiting for output from the salt-api (waiting on empty output); this it seems to be a parsing problem between the output from the salt-api and the output that rundeck should expect from this.
The same was tested using the command line and it works fine.

also related #25