#!/bin/sh
##
## Script to automate the copy of databases running on a ramdisk to a permanent storage location
##
echo -e 'Starting the sidecar container to periodically backup the sonarr databases'
echo -e 'Create the ramdisk file'
dd if=/dev/zero of=/ramdisk/image.ext4 count=0 bs=1 seek=400M
echo -e 'Create filesystem on ramdisk file'
mkfs.ext4 /ramdisk/image.ext4
echo -e 'Mount the ramdisk file to /mnt/sonarr-ramdisk-mount'
mount /ramdisk/image.ext4 $RAMDISK_MOUNT_DIR
echo -e 'Initial copy of the config from the remote share to the ramdisk'
cp -fvp $APP_CONFIG_DIR/*.* $RAMDISK_MOUNT_DIR
echo -e 'Set up the filesystem freeze, copy, unfreeze loop'
while true; do 
  sleep 890
  date
  sync $RAMDISK_MOUNT_DIR/*.*
  fsfreeze --freeze $RAMDISK_MOUNT_DIR
  sleep 10
  cp -fvp $RAMDISK_MOUNT_DIR/*.* $APP_CONFIG_DIR/
  fsfreeze --unfreeze $RAMDISK_MOUNT_DIR
done