ploosh.
Documentation
Custom parameters usefulness
It is possible to add a custom parameter in the connection configuration file to avoid hardcoding sensitive information like passwords or credentials.To use a custom parameter, you need to add a parameter in the connection configuration file and use it in the connection configuration. The parameter value can be passed as an environment variable or as a command line argument.
Syntax and usage
The syntax of for the parameter is$var. in the connection configuration file.The parameter value can be passed as a command line argument using the --p option.