Use a dedicated backup directory rather than /tmp.

bin/backup.sh

@@ -11,12 +11,18 @@ source $DIR/../source.env
 
 TAG="Docker"
 DATE="`date "+%Y%m%d-%H%M%S"`"
-BASENAME="/tmp/Backup"
+BACKUP_DIR="/srv/backups"
+BASENAME="$BACKUP_DIR/Backup"
 file="$BASENAME.$DATE.$HOSTNAME.$TAG.zip"
 time="`which time`"
 
 ## Main ##
 
+# Ensure backup directory exists with correct permissions.
+mkdir -pv $BACKUP_DIR
+chmod -Rv 755 $BACKUP_DIR
+chown -Rv root:root $BACKUP_DIR
+
 # Remove the last backup.
 echo "`date` - Removing existing files."
 rm -fv "$BASENAME"*"$TAG"*