[bitnami/postgresql] allow custom service labels for primary and read

[ivaanko]

Signed-off-by: Ivan Korolev ivaanko@gmail.com

Description of the change

This extends templates for PostgreSQL primary and read services to allow passing custom labels from values.

Benefits

Until now there was no ability to add custom values to the primary and read services. These labels can be used, for example, to control load balancer node pools.

Possible drawbacks

Applicable issues

• fixes [bitnami/postgresql] allow adding custom labels to primary and read services #32366

Additional information

Checklist

• Chart version bumped in Chart.yaml according to semver. This is not necessary when the changes only affect README.md files.
• Variables are documented in the values.yaml and added to the README.md using readme-generator-for-helm
• Title of the pull request follows this pattern [bitnami/<name_of_the_chart>] Descriptive title
• All commits signed off and in agreement of Developer Certificate of Origin (DCO)

[carrodher]

Testing is failing due to:

Error: INSTALLATION FAILED: template: cp-charts-repository/templates/read/svc.yaml:13:16: executing "cp-charts-repository/templates/read/svc.yaml" at <.Values.read.service.labels>: nil pointer evaluating interface {}.service

Could you please take a look?

[ivaanko]

Hi @gongomgra ! I've fixed the tests and also resolved semver conflict with a version that was released during this period, could you proceed with the review, please? Thank you!

[gongomgra]

Thanks for your contribution!