I'm trying to pass the Kubernetes env variables from custom yaml file. But, the env variables which uses valueFrom syntax are not getting bound to the struct in Go.

demo.yaml

env:
  resource:
    - name: DEMO1
      value: value1
    - name: POD_LABELS
      valueFrom:
        fieldRef:
          fieldPath: metadata.labels

Go struct:

type Config struct {
    Env EnvData `yaml:"env"`
}

type EnvData struct {
  Resource []corev1.EnvVar `yaml:"resource"`
}

After unmarshalling the output is:

env: {resource: [{Demo1 value1 nil}, {POD_LABELS  nil}]}