90 lines
2.2 KiB
Bash
Executable File
90 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
# Enable debug mode
|
|
DEBUG="${DEBUG:-false}"
|
|
if [ "$DEBUG" = "true" ]; then
|
|
echo "[DEBUG] Running entrypoint script at $(which entrypoint.sh)"
|
|
sleep 0.2
|
|
set -ux
|
|
fi
|
|
|
|
# Settings
|
|
FILE="${FILE:-/app/server.properties}"
|
|
EULAFILE="${EULAFILE:-/app/eula.txt}"
|
|
PREFIX="${PREFIX:-SETTINGS_}"
|
|
JVM_OPTS="${JVM_OPTS:--Xms1G -Xmx2G}"
|
|
|
|
# Set EULA
|
|
sed -i.bak "s/^eula=.*\$/eula=${EULA:-false}/" "$EULAFILE"
|
|
diff --unified=1 "${EULAFILE}.bak" "$EULAFILE"
|
|
rm "${EULAFILE}.bak"
|
|
|
|
# Update server.properties using env
|
|
while IFS='=' read -r ENVVAR VALUE ; do
|
|
if echo "$ENVVAR" | grep -q "^${PREFIX}.*$"; then
|
|
KEY="${ENVVAR#"$PREFIX"}"
|
|
if ! grep -q "^${KEY}=" "$FILE"; then
|
|
echo "[WARN]: \"$KEY\" does not exist in $FILE and was not updated"
|
|
else
|
|
[ "$DEBUG" = "true" ] && echo "[DEBUG] Updating \"$KEY\" to \"$VALUE\""
|
|
sed -i.bak "s/^${KEY}=.*/${KEY}=${VALUE}/" "$FILE"
|
|
diff --unified=1 "${FILE}.bak" "$FILE"
|
|
rm "${FILE}.bak"
|
|
fi
|
|
else
|
|
[ "$DEBUG" = "true" ] && \
|
|
echo "[DEBUG] \"$ENVVAR\" doesn't have the prefix \"$PREFIX\""
|
|
fi
|
|
done < <(env)
|
|
|
|
# Show server.properties in DEBUG mode
|
|
if [ "$DEBUG" = "true" ]; then
|
|
echo "[DEBUG] Showing ${FILE}:"
|
|
cat "$FILE"
|
|
fi
|
|
|
|
# Pre-create the screen log
|
|
touch screenlog.0
|
|
|
|
# Set up a SIGTERM signal trap
|
|
trap 'kill ${TAIL_PID}' SIGTERM
|
|
|
|
# Run server in screen (without attaching)
|
|
/usr/bin/screen -dmS minecraft -L \
|
|
bash -c "
|
|
sleep 0.5
|
|
[ $DEBUG = true ] && echo '[DEBUG] Starting server'
|
|
/usr/bin/java $JVM_OPTS -jar server.jar --nogui
|
|
"
|
|
|
|
# Get screen PID
|
|
SCREEN_PID="$(
|
|
screen -ls | grep -oE '[0-9]+\.minecraft' | cut -d. -f1
|
|
)"
|
|
|
|
# Check screen PID
|
|
if ! ps -p "$SCREEN_PID" > /dev/null; then
|
|
echo "[ERROR] Could not obtain screen PID: \"$SCREEN_PID\""
|
|
screen -ls
|
|
echo now testing:
|
|
screen -ls | grep -oE '[0-9]+\.minecraft' | cut -d. -f1
|
|
exit 1
|
|
fi
|
|
|
|
# Tail screen log to container stdout
|
|
[ "$DEBUG" = "true" ] && echo "[DEBUG] Tailing screenlog.0"
|
|
tail -f screenlog.0 &
|
|
TAIL_PID=$!
|
|
wait "$TAIL_PID"
|
|
|
|
|
|
if screen -ls | grep -q minecraft; then
|
|
echo "[INFO] Stopping minecraft"
|
|
/usr/bin/screen -p 0 -S minecraft -X eval 'stuff "stop"\015'
|
|
else
|
|
echo "[WARN]: 'minecraft' screen not found attempting to stop server"
|
|
return 1
|
|
fi
|
|
|
|
wait "$SCREEN_PID"
|