From 1c5e4b17bf53ea840a8703a14b51b7a5b97235e9 Mon Sep 17 00:00:00 2001
From: Geoff Bourne <itzgeoff@gmail.com>
Date: Sat, 18 Aug 2018 16:56:45 -0500
Subject: [PATCH] mc: chown /data when it doesn't match $UID Fixes #239

---
 minecraft-server/Dockerfile | 3 ++-
 minecraft-server/start      | 6 ++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/minecraft-server/Dockerfile b/minecraft-server/Dockerfile
index 372fc499..ec909451 100644
--- a/minecraft-server/Dockerfile
+++ b/minecraft-server/Dockerfile
@@ -52,7 +52,8 @@ WORKDIR /data
 
 ENTRYPOINT [ "/start" ]
 
-ENV JVM_XX_OPTS="-XX:+UseG1GC" MEMORY="1G" \
+ENV UID=1000 GID=1000 \
+    JVM_XX_OPTS="-XX:+UseG1GC" MEMORY="1G" \
     TYPE=VANILLA VERSION=LATEST FORGEVERSION=RECOMMENDED SPONGEBRANCH=STABLE SPONGEVERSION= LEVEL=world \
     PVP=true DIFFICULTY=easy ENABLE_RCON=true RCON_PORT=25575 RCON_PASSWORD=minecraft \
     LEVEL_TYPE=DEFAULT GENERATOR_SETTINGS= WORLD= MODPACK= SERVER_PORT=25565 ONLINE_MODE=TRUE CONSOLE=true
diff --git a/minecraft-server/start b/minecraft-server/start
index 9e4c5f12..6a8c6b8f 100755
--- a/minecraft-server/start
+++ b/minecraft-server/start
@@ -7,6 +7,12 @@ if [ $(id -u) = 0 ]; then
   if [[ -v GID ]]; then
     groupmod -g $GID minecraft
   fi
+
+  if [[ $(stat -c "%u" /data) != $UID ]]; then
+    echo "Changing ownership of /data to $UID ..."
+    chown -R minecraft:minecraft /data
+  fi
+
   su-exec minecraft:minecraft /start-configuration
 else
   exec /start-configuration