The MAVLink "standard" expects GCS's to be able to listen on UDP 14550 and get traffic. At the moment, 14553 is being used from the MAVROS image due to conflict with PX4's defaults.
One step towards resolving is to unset the MAV_BROADCAST parameter for the PX4 SITL. This means the SITL will only direct traffic to localhost unless given an explicit partner IP (as done for PX4_OFFBOARD_HOST). Some exploration will be needed over how this works with Kubernetes pod networking.
The MAVLink "standard" expects GCS's to be able to listen on UDP 14550 and get traffic. At the moment, 14553 is being used from the MAVROS image due to conflict with PX4's defaults.
One step towards resolving is to unset the MAV_BROADCAST parameter for the PX4 SITL. This means the SITL will only direct traffic to localhost unless given an explicit partner IP (as done for PX4_OFFBOARD_HOST). Some exploration will be needed over how this works with Kubernetes pod networking.