[FEATURE REQUEST] Backup OpenSearch in HA mode

[sk4zuzu]

Is your feature request related to a problem? Please describe.
Backup feature does not work with clustered multi-node OpenSearch. Please check #884.

Describe the solution you'd like
Backup code should work with clustered multi-node OpenSearch .

Describe alternatives you've considered
N/A

Additional context
Clustered multi-node OpenSearch requires shared folder (for example NFS) to create / restore snapshots. Epiphany does not support such a shared storage currently.

---

DoD checklist

• Changelog
  • updated
  • not needed
• COMPONENTS.md
  • updated
  • not needed
• Schema
  • updated
  • not needed
• Backport tasks
  • created
  • not needed
• Documentation
  • added
  • updated
  • not needed
• Feature has automated tests
• Automated tests passed (QA pipelines)
  • apply
  • upgrade
  • backup/restore
• Idempotency tested
• All conversations in PR resolved
• Solution meets requirements and is done according to design doc
• Usage compliant with license

[mkyc]

@sk4zuzu and @to-bar can you provide some more comment what dis task is dependent to? Can we do it now?

[to-bar]

Tasks to be done before (in order):

1. Add time synchronization service (NTP) to Epiphany [FEATURE REQUEST] Add time synchronization service (NTP) to Epiphany #1298
2. NFS storage for Epiphany [FEATURE REQUEST] NFS Storage for Epiphany #1233 (with stunnel TLS encryption)

[seriva]

Changing this in the context of OpenSearch. We might need to verify again how todo this there.

[seriva]

Not going todo anymore feature requests for Epiphany.