act_runner's defaults autodetect its own container IP as the cache host, which per-job networks can't route to — every actions/cache restore and save hit a 5-minute ETIMEDOUT. Add a config.yaml that pins the cache port and advertises host.docker.internal, publish that port on the host, and inject --add-host=host-gateway into job containers so the hostname resolves inside isolated networks.
494 B
494 B