gradle.properties pins forge_1_7_10_version=10.13.4.1614-1.7.10, but itzg's
installer's --forge-version validation only accepts the plain dot-separated
build number and rejected the full string with "Invalid value for
--forge-version". Confirmed by booting a real container: trimming to
10.13.4.1614 passes validation and moves on to actually downloading the
installer.
Three services (mc-1_12_2 default, mc-1_7_10/mc-neoforge-26_1 opt-in via
Compose profiles) using itzg/docker-minecraft-server, with mods/config bind-
mounted per loader/version (mods/<loader>/<version>/) so jars can be dropped
in and swapped without touching the compose file. Verified against real
containers: fixed a WSL docker credential-helper misconfig blocking pulls,
and pinned legacy Forge services to the java8 image tag after itzg's
:latest (Java 25) crashed LaunchWrapper with a ClassCastException — mc-1_12_2
now boots cleanly to "Done" on java8.
octoturge