Is it possible to set Environment Variables per nodejs app?

The azure module will read the Environment variables AZURE_SERVICEBUS_NAMESPACE and AZURE_SERVICEBUS_ACCESS_KEY for information required to connect to your Windows Azure Service Bus. If these environment variables are not set, you must specify the account information when calling createServiceBusService.

I would like to set different namespaces/key on a per app lvl instead of global?

(i am hosting it in a ubuntu vm)

Not sure if that is possible. But there is something you can do.

In your application just set those environment variables based on others:

process.env.AZURE_SERVICEBUS_NAMESPACE = process.env._AZURE_SERVICEBUS_NAMESPACE
process.env.AZURE_SERVICEBUS_ACCESS_KEY = process.env._AZURE_SERVICEBUS_ACCESS_KEY

Its a little more verbose but I am not sure if you can set dynamic environment variables.