Why do Spring Cloud Netflix applications deployed on Docker containers require explicitly setting eureka.instance.hostname?
I believe each Docker container would need to register using the Docker host IP and Docker host port mapped to the container port.
This what I have used:
Eureka instance:
docker run -idt -p 8001:8001 --net=host -e spring.profiles.active=peerAware -e appPort=8001 -e hostName=$HOSTNAME -e dataCenter=asimio-cloud-dal -e environment=staging -e peerUrls="http://$HOSTNAME:8002/eureka/" asimio/discovery-server:1.0.73A service instance:
docker run -idt -p 8601:8601 --net=host -e appPort=8601 -e hostName=$HOSTNAME -e eureka.client.serviceUrl.defaultZone="http://$HOSTNAME:8001/eureka/,http://$HOSTNAME:8002/eureka/" asimio/demo-registration-api-2:1.0.21