fix root rigthts

scripts/entrypoint.sh

@@ -3,10 +3,12 @@
 set +e
 
 # Create crontab in a writable location and set proper permissions
-echo "${CRONTAB:-"0 * * * *"} /scripts/backup.sh >> /proc/1/fd/1 2>&1" > /etc/crontabs/root
+mkdir -p /tmp/crontabs
+echo "${CRONTAB:-"0 * * * *"} /scripts/backup.sh >> /proc/1/fd/1 2>&1" > /tmp/crontabs/root
+chmod 644 /tmp/crontabs/root
 
 # Run initial backup
 /scripts/backup.sh
 
 # Start crond in foreground with debug output
-exec crond -f -d 0
+exec crond -f -c /tmp/crontabs -d 0