backup: only stop the stack for backup

Using docker-compose down/up will recreate the containers,
possibly using different images if a manual "docker-compose pull"
had been executed.

Author: ukkopahis

scripts/backup_restore/post_backup_complete.sh

@@ -7,4 +7,4 @@ if [ -f "./post_backup.sh" ]; then
   bash ./post_backup.sh
 fi
 
-docker-compose up -d
+docker-compose start

scripts/backup_restore/pre_backup_complete.sh

@@ -2,7 +2,7 @@
 
 # This script runs any prebackup commands you may need
 
-docker-compose down
+docker-compose stop
 
 if [ -f "./pre_backup.sh" ]; then
   echo "./pre_backup.sh file found, executing:"