Setting GOMAXPROCS to resource limits cpu using Kubernetes downward API

GOMAXPROCS.downward_api.yaml

apiVersion: v1
kind: Pod
metadata:
  name: mypod
spec:
  containers:
  - name: mycontainer
    image: myimage
    resources:
      limits:
        cpu: "2"
    env:
    - name: GOMAXPROCS
      valueFrom:
        resourceFieldRef:
          containerName: mycontainer
          resource: limits.cpu
          # divisor: necessary if setting w millicpu + probably an entry point to round if a decimal value