Fix random values regenerating

[Kajot-dev]

• Fixes regeneration of random secrets
• Adds support for existingSecret for swift and oss

Fixes: #1609 #1549

Essentially does the same thing as #1550 but with different approach

[Kajot-dev]

@zyyw Reverted generating internal database password as this could possibly break existing installations and changes current behavior which allows empty password for internal database.
Also resolved conflicts.

[OrlinVasilev]

@Kajot-dev congrats on your first PR merged here :)) welcome to the club! :)

[kevin7s-io]

@OrlinVasilev,

Seeing the same in ArgoCD. It's not clear to me why the checksum is changing as diffing the {release}-harbor-core secret shows no differences between sync runs.

FWIW, I ended up just ignoring the checksum annotations in the ArgoCD app (you can be more tactical than this -- I'm lazy):

  ignoreDifferences:
    - group: "*"
      kind: Secret
      jsonPointers:
        - /data
    - group: apps
      kind: Deployment
      jsonPointers:
        - /spec/template/metadata/annotations

[Kajot-dev]

I'm guessing that ArgoCD uses helm template? If so, the lookup helm function will not work and checksum will be different each time.