Helm template - how to set tolerations in values.yaml

Config
1

Hi,

I have a problem to set tolerations option for istio components,

eg.

helm template ${ISTIO_ROOT}/install/kubernetes/helm/istio \
    --name istio \
    --namespace istio-system \
    -f values.yaml 

# values.yaml
mixer:
  tolerations:
    - key: mgt-host
      operator: Equal
      value: "true"
      effect: NoSchedule

but it doesn’t work. What I would expect is:

---
# Source: istio/charts/mixer/templates/deployment.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata: [...]
spec:
  replicas: 2
  strategy: [...]
  selector: [...]
  template:
    metadata:
      labels:[...]
      annotations:
        sidecar.istio.io/inject: "false"
    spec:
      # Ensure pods run on mgt-host
      tolerations:
      - key: mgt-host
        operator: Equal
        value: "true"
        effect: NoSchedule