Docker: Create default users and groups #2262 #2228

Creates accounts to run PhotoPrism under a custom user ID. Also adds
them to the video and render groups, which might help to access hardware
transcoding devices.

scripts/dist/create-users.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+
+PATH="/usr/local/sbin:/usr/sbin:/sbin:/usr/local/bin:/usr/bin:/bin:/scripts"
+
+# abort if not executed as root
+if [ $(id -u) != "0" ]; then
+  echo "Usage: run ${0##*/} as root" 1>&2
+  exit 1
+fi
+
+echo "Creating default users and groups..."
+
+groupadd -f -r -g 44 video
+groupadd -f -r -g 109 render
+groupadd -f -g 1000 photoprism
+
+add_user()
+{
+  useradd -u "$1" -g photoprism -G video,render -s /bin/bash -m -d "/home/user-$1" "user-$1" 2>/dev/null
+}
+
+for i in $(seq 50 99); do add_user "$i"; done
+for i in $(seq 500 549); do add_user "$i"; done
+for i in $(seq 1000 1099); do add_user "$i"; done
+
+echo "Done."