4b68729a8a
catthehacker/ubuntu:act-latest ships no iproute2, so fixture_host() fell back to 127.0.0.1 inside the job container and every published-port fixture timed out (QuestDB is the first one probed over the network). Read the default gateway from /proc/net/route in plain bash, warn when none is found, and log the chosen host. Verified in that image on a user-defined network: gateway parsed, published port 200. Claude-Session: https://claude.ai/code/session_01GT67AD99zQQqpLCVm3p7xk