Added error classes for specific backup rake task

Merged Shubham Kumar requested to merge imskr/gitlab:skr-email-errors-class into master

What does this MR do?

  • Added the error classes for each type of failure
  • Takes source - Files to backup and destination - Backup file as parameters and show error message
  • Contributes to #17020

Does this MR meet the acceptance criteria?

  • Yes

Conformity

Availability and Testing

Security

Does this MR contain changes to processing or storing of credentials or tokens, authorization and authentication methods or other items described in the security review guidelines? If not, then delete this Security section.

  • Label as security and @ mention @gitlab-com/gl-security/appsec
  • The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
  • Security reports checked/validated by a reviewer from the AppSec team
Edited by Shubham Kumar