PBM-1213: Backup/Restore with included Users&Roles

[boris-ilijic]

PR for https://perconadev.atlassian.net/browse/PBM-1213

The feature expands backup & restore commands with the possibility to include database specific users and roles. Following use cases are added:

• selective backup with included users&roles
• selective restore with included users&roles from selective backup
• selective restore with included users&roles from full backup

In existing pbm backup and pbm restore commands the new options --with-users-and-roles are added.

Selective backup & restore with users&roles example:

$ pbm backup --ns="mydb.*" --with-users-and-roles

$ pbm describe-backup --with-collections 2024-03-25T15:33:48Z  
name: "2024-03-25T15:33:48Z"
namespaces:
- mydb.*
replsets:
- name: rs0
  collections:
  - mydb.$admin.system.roles
  - mydb.$admin.system.users
  - mydb.$admin.system.version
  - mydb.c1
  - mydb.c2

$ pbm restore --ns="mydb.*" --with-users-and-roles 2024-03-25T15:33:48Z

Selective restore from full backup example:

$ pbm backup
Starting backup '2024-03-27T16:48:21Z'.......

$ pbm restore --ns="mydb1.*, mydb2.*" --with-users-and-roles 

[defbin]

looks ok

[boris-ilijic]

Selective backup of the Config server is the issue bacause MongoDump supports just single namespace and we need to backup config database as well as user&roles from admin database. Therefore closing for now.