Enterprise Command Center IP6 "issue" in a Docker container

Hello everyone,

                         I created a docker image from a scratch that can run an enterprise command center V3. My only concern is during "Integrate ECC with EBS" step from (Doc ID 2495053.1).

Part of the initial step is to set some environment variables using "host" command

EBS_IP6=$(host -6 $EBS_MIDDLETIER_HOST_FQDN | grep "has IPv6 address" | sed "s|\(.*\) has IPv6 address \(.*\)|\2|")

EBS_IP4=$(host -4 $EBS_MIDDLETIER_HOST_FQDN | grep "has address" | sed "s|\(.*\) has address \(.*\)|\2|").

                        Inside the ecc docker container, host -4 command returns the correct ip address of my EBS Middle tier host. It was not the case for host -6 command (It timeout). Result of that I can see something alarming during Managed server startup as part of this step.