Another update, I was also able to ping all services from all other services after switching from ubi-minimal to ubi. Perhaps it’s a feature of the minimal base image?
@cywang117 Thank you for your investigation. However it is not related to the base image. As I wrote above I can reproduce it only with balenalib/intel-nuc-ubuntu:bionic. If you try to ping test3_long_name from test1 or test2. To remove the confusion I pushed the following docker-compose. However atm something is stuck at the device and its not updating, although the target release is correct (that might be a separate issue)
version: "2.1"
services:
test1:
image: balenalib/intel-nuc-ubuntu:bionic
entrypoint: ["tail", "-f", "/dev/null"]
test2:
image: balenalib/intel-nuc-ubuntu:bionic
entrypoint: ["tail", "-f", "/dev/null"]
test3_long_name:
image: balenalib/intel-nuc-ubuntu:bionic
entrypoint: ["tail", "-f", "/dev/null"]
Therefore I think it’d be good to reopen the issue.