listen-ipv6.sh writes "listen [::]:8080;" and then looked for
"listen [::]:8080" with one space, so the check never matched. A new
container was fine; restarting the same one (a reboot, docker restart, or
an installer that stops and starts the stack) added a second listener,
and nginx refused the duplicate and restarted in a loop. The check now
allows any number of spaces.
docker/listen-ipv6.test.sh runs the script on nginx.conf three times and
checks for one IPv6 listener; CI runs it, on both forges.
From ee96410 on main, for the 2026.10 line that :latest still points at.
jcoffey-dev
f1088aa087