feat: custom entrypoint to run before the official entrypoint in nextcloud container

nextcloud/nextcloud-entrypoint.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+####################
+# My Special Sauce #
+####################
+
+#################################################################
+# This script is to make the www-data in /entrypoint.sh to	#
+# any user specified by $UID, so that your nextcloud can run	#
+# properly.							#
+#################################################################
+
+set -eu
+
+# default to UID=1000 if not set
+TARGET_UID="${UID:-1000}"
+
+# replace "www-data" with numeric UID/GID
+sed -i "s/www-data/${TARGET_UID}/g" /entrypoint.sh
+
+# execute the patched entrypoint with all args
+exec /entrypoint.sh php-fpm