clear backup folder inside the container to keep storage in check

[vijayabharathib]

backup cron is running in a container and sending files to s3. all files are deleted after pushing to s3. however, some files stayed within the container , using 25GB of data.

this has to be debugged and fixed.

[arulrajnet]

The root cause of the issue is, when the backup failed we didn't clear the tar file inside the /backup directory.

Failed log

Will fix the same.