Supported config:
AZURE_SB_KEYNAME - servicebus access key name; system, env; required
AZURE_SB_KEY - servicebus access key; system, env; required
AZURE_SB_NAMESPACE - servicebus namespace; system, env; required
AZURE_SB_LISTEN_QUEUE_NAME - servicebus queue to listen; config, system, env; optional
EB_RECEIVE_ADDRESS - eventbus address to which received messages are sent; config, default; optional
EB_SEND_ADDRESS - eventbus address which is listened for messages to be sent to Azure ServiceBus; config, default; optional
AZURE_SB_INBOUND_DISPATCH_MODE - how verticle should dispatch received message; config, system, env; optional