I am trying to pass a value using the --set in helm3. However, it looks like the yaml file is not pulling/parsing the value.

My folder structure is like below: (there are a few other charts but I have removed them for simplicity)

k8shelmcharts
├── Chart.yaml
└── charts
    ├── postgresdb
    │   ├── Chart.yaml
    │   ├── templates
    │   │   ├── postgres.configmap.yml
    │   │   ├── postgres.deployment.yml
    │   │   ├── postgres.secrets.yml
    │   │   └── postgres.service.yml
    │   └── values.yaml

and the contents of the postgres.secrest.yml file is:

apiVersion: v1
kind: Secret
metadata:
  name: postgres-secret
  type: Opaque
data:
  # property-like keys; each key maps to a simple value
  password: {{ .Values.password }}

( I have also tried .Values.global.password )

When I try to install the charts by running the command (from the root of the helm charts ie: k8shelmcharts folder) helm install testapp . --set password=postgrespasssword --debug --dry-run

I get the error:

Error: unable to build kubernetes objects from release manifest: error validating "": error validating data: unknown object type "nil" in Secret.data.password
helm.go:94: [debug] error validating "": error validating data: unknown object type "nil" in Secret.data.password

If I try to generate the templates using helm template testflaskapp . --set password=postgrespassword --debug --dry-run, I can see that the password does not seem to get populated in the postgres.secret.yml file -

# Source: flask-k8s-app/charts/postgresdb/templates/postgres.secret.yml
apiVersion: v1
kind: Secret
metadata:
  name: postgres-secret
data:
  # property-like keys; each key maps to a simple value
  password:

Any help on what I am missing so that I can --set values and pull them in the yaml files successfully? Thanks!