helm chart: DKIM

[zerthimon]

Is it possible to install the chart with pre-generated DKIM keys ?
Has anyone done that and can share their values.yaml file ?

[zerthimon]

I figured out how to add DKIM without changing the helm chart:
Here are my values

config:
  general:
    ALLOWED_SENDER_DOMAINS: foo.bar

secret:
  dkim-private: |
    -----BEGIN RSA PRIVATE KEY-----
    < redacted >
    -----END RSA PRIVATE KEY-----

persistence:
  enabled: false

extraVolumes:
  - name: dkim-private
    secret:
      secretName: mail
      items:
        - key: dkim-private
          path: foo.bar.private

extraVolumeMounts:
  - name: dkim-private
    mountPath: /etc/opendkim/keys
    readOnly: true

It works, but there are two minor issues:

1. The private keys ends up in the container env (since the envFrom:secretRef)
2. secretName in extraVolumes needs to be set to the release name.

[zerthimon]

It'd be nice to have a specific values parameter for the DKIM private key setting for easy addition of the DKIM volume.

[bokysan]

I've added a new feature to the latest helm chart -- mountSecret, which should help you with this issue.