feat: add support for pod affinity

[smcavallo]

Signed-off-by: smcavallo smcavallo@hotmail.com

Description of the change

Adds support for pod affinity

Existing or Associated Issue(s)

Additional Information

output of helm template --values=values.yaml . before and after adding this feature is exactly the same

output after defining affinity in values works as expected:

      annotations:
        checksum/app-config: 44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a
    spec:
      serviceAccountName: default
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: my-nodegroup
                operator: In
                values:
                - backstage
      volumes:

Checklist

• [X ] Chart version bumped in Chart.yaml according to semver.
• [X ] Variables are documented in the values.yaml and added to the README.md. The helm-docs utility can be used to generate the necessary content. Use helm-docs --dry-run to preview the content.
• JSON Schema generated.
• List tests pass for Chart using the Chart Testing tool and the ct lint command.

[vinzscam]

Thanks @smcavallo! 🙏
Please ensure that the schema changes are applied to values.schema.tmpl.json. There should be a pre-commit script that applies these changes to values.schema.json. If the script doesn't start automatically, you should be able to run it using python .pre-commit/jsonschema-dereference.py.

[vinzscam]

sorry I had to rebase the branch in order to get the latest changes

thank you so much @smcavallo 🙏