Add support for UserCredentials for consumer

[eugenestarchenko]

Sadly NACK does not work for jetstream consumers the way we use it 😔
the piece of code that looks up the credentials from the account object is missing for the consumer

nack/controllers/jetstream/consumer.go

Line 95 in 6c54a4e

// FIXME: Add support for UserCredentials for consumer.

here is the equivalent piece for the stream object (which works fine)

nack/controllers/jetstream/stream.go

Lines 110 to 132 in 6c54a4e

	// Lookup the UserCredentials.
	if acc.Spec.Creds != nil {
	secretName := acc.Spec.Creds.Secret.Name
	secret, err := c.ki.Secrets(ns).Get(c.ctx, secretName, k8smeta.GetOptions{})
	if err != nil {
	return err
	}
	// Write the user credentials to the cache dir.
	accDir := filepath.Join(c.cacheDir, ns, spec.Account)
	if err := os.MkdirAll(accDir, 0755); err != nil {
	return err
	}
	for k, v := range secret.Data {
	if k == acc.Spec.Creds.File {
	accUserCreds = filepath.Join(c.cacheDir, ns, spec.Account, k)
	if err := os.WriteFile(filepath.Join(accDir, k), v, 0644); err != nil {
	return err
	}
	}
	}
	}
	}

https://github.com/nats-io/nack/blob/main/controllers/jetstream/consumer.go#LL95C29-L95C44

Do you have a possible ETA for this case?
Thank you!

[AMarti96]

This should be fixed in #128