Support existing claims for redis and postgresql

[justsomebody42]

Describe the problem

Both redis and postgresql charts support the configuration of an existing claim, but it seems to be impossible to use this with the weblate helm chart

Describe the solution you'd like

Add support for existingClaims for both redis and postgresql subcharts

• Postgresql: primary.persistence.existingClaim
• Redis: master.persistence.existingClaim

Describe alternatives you've considered

No response

Screenshots

No response

Additional context

No response

[nijel]

There is already support for using external services, see #317 or #116.

[justsomebody42]

Hi @nijel,
thanks for the note.
I was looking to be able to deploy the full stack (weblate + postgresql + redis) with a single chart, rather than setting up each service individually.
Wouldn't it be possible and suffice to expose the values from the subcharts to this chart?

[github-actions]

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