Docker compose - container do not ping after VM reboot

I’m facing a strange issue : after rebooting a VM, docker-compose container restart but are not able to colloquiate with themself. If i manually delete the _default network, do a docker compose down && docker compose up -d, the issue do not show uo anymore.

VM is a RHE 7.9 using iptables, not firewalld. Also flushing iptables do not solve issue.


Personally I would update to a newer distro and use a dedicated Docker network, not “default”.

IBM is announcing Red Hat Enterprise Linux 7 is going End of Support on 30 June 2024