docker-minecraft-server/scripts/start-deployForge

#!/bin/bash

: "${FORGE_VERSION:=${FORGEVERSION:-RECOMMENDED}}"
: "${FORGE_FORCE_REINSTALL:=false}}"

# shellcheck source=start-utils
. "${SCRIPTS:-$(dirname "$0")}/start-utils"
isDebugging && set -x

if ! mc-image-helper install-forge \
  --output-directory=/data \
  --results-file=/data/.run-forge.env \
  --minecraft-version="${VANILLA_VERSION}" \
  --forge-version="${FORGE_VERSION}" \
  --force-reinstall="${FORGE_FORCE_REINSTALL}"; then
    log "ERROR failed to install forge"
    exit 1
fi

# grab SERVER and export it
set -a
source /data/.run-forge.env
set +a

export FAMILY=FORGE

exec "${SCRIPTS:-/}start-setupWorld" "$@"