Unable to reference Service Principal from existing secret

[jrbe228]

Most likely this is some bad syntax on my side, but here goes...

Describe the bug
In my Helm values, I supply -

armAuth:
  type: servicePrincipal
  # Generate this value with:
  #   az ad sp create-for-rbac --subscription <subscription-uuid> --sdk-auth | base64 -w0
  # secretJSON: ''
  # name of existing Secret containing armAuth.json
  # if set, no secret is being created by the chart
  existingSecret: azure-config-file

However this results in an error:
armAuth.secretJSON is required when using servicePrincipal

To Reproduce
Steps to reproduce the behavior:

1. Create an Azure Service Principal
2. Store credentials in K8s secret
3. Reference the secret from Helm values as shown above

Ingress Controller details

• Output of controller pod logs -
  container "ingress-azure" in pod "ingress-azure-5bfd9d6c99-gslp2" is waiting to start: ContainerCreating

• Helm chart:
  oci://mcr.microsoft.com/azure-application-gateway/charts/ingress-azure

• Chart version:
  1.7.4

• Container image:
  mcr.microsoft.com/azure-application-gateway/kubernetes-ingress:1.9.2

[jrbe228]

Nevermind ¯\(ツ)/¯ This error was caused by mismatch between container image version 1.9.2 and legacy Helm chart version 1.7.4. Updating chart version to 1.9.2 appears to have fixed the error.