Allow the setting of environment variables in arm templates.
Currently I'm using the custom script extension to set an environment variable with all the information that I need to connect an app that I'm installing with an azure sql database. I've had to resort to parsing the values needed out of one variable as trying to run multiple commands with the custom script extension is not working. This would be resolved if there were a section of the arm template that allowed you to set values in your vm. I'm doing it this way because I'm generating the name for the db and the username and password are coming in as parameters.