{{- if or (index .Values "istio-ingress" "enabled") (index .Values "istio-private-ingress" "enabled") }}
apiVersion: networking.istio.io/v1alpha3
kind: EnvoyFilter
metadata:
  name: ingressgateway-listener-tcp-keepalive
  namespace: {{ .Release.Namespace }}
spec:
  configPatches:
  - applyTo: LISTENER
    patch:
      operation: MERGE
      value:
        socket_options:
          # SOL_SOCKET = 1
          # SO_KEEPALIVE = 9
          - level: 1
            name: 9
            int_value: 1
            state: STATE_LISTENING
          # IPPROTO_TCP = 6
          # TCP_KEEPIDLE = 4
          - level: 6
            name: 4
            int_value: 60
            state: STATE_LISTENING
          # TCP_KEEPINTVL = 5
          - level: 6
            name: 5
            int_value: 60
            state: STATE_LISTENING
{{- end }}