Fix docker

docker/entrypoint.sh

@@ -24,15 +24,19 @@ ln -snf /usr/share/zoneinfo/$TZ /etc/localtime
 echo "$TZ" >/etc/timezone
 echo "Timezone set to $TZ"
 
-# Create nsupdate group
-addgroup -S --gid $PGID "$USERNAME"
+# Create group if it doesn't exist yet
+if ! getent group "$USERNAME" > /dev/null 2>&1; then
+  addgroup -g "$PGID" "$USERNAME"
+fi
 
-# Create nsupdate user
-adduser -S -u $PUID -G "$USERNAME" -D -H -s /bin/false "$USERNAME"
+# Create user if it doesn't exist yet
+if ! getent passwd "$USERNAME" > /dev/null 2>&1; then
+  adduser -u "$PUID" -G "$USERNAME" -D -H -s /bin/false "$USERNAME"
+fi
 
 CRON_FILE="/etc/crontabs/$USERNAME"
 mkdir -p /etc/crontabs
-printf '%s %s %s\n' "$SCHEDULE" "$USERNAME" "$COMMAND" > "$CRON_FILE"
+printf '%s %s\n' "$SCHEDULE" "$COMMAND" > "$CRON_FILE"
 chmod 600 "$CRON_FILE"
 
 # Set correct permissions