Configure simulation servers to work with IGN_RELAY
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Context
Cloudsim was not able to listen to ign-transport topics because IGN_RELAY was not being properly configured when creating simulation servers.
Change
This MR configures the IGN_RELAY env var of launched simulation servers to Cloudsim's Weave IP address. IGN_RELAY must contain the Weave address as both ign-transport nodes must be able to communicate to each other to be able to establish a connection. This is not possible with the AWS VPC address.
Other information
Additional documentation
Edited by Alejo Carballude