add environment attr
Usage
stack add environment attr {environment ...} {attr=string} {value=string} [shadow=boolean]
Description
Sets an attribute to an environment and sets the associated values
Arguments
[environment]
Name of environment
Parameters
[attr=string][value=string]{shadow=boolean}
If set to true, then set the 'shadow' value (only readable by root and apache).
Examples
stack set environment attr test sge False
Sets the sge attribution to False for test nodes