istio-buffering/envoyfilters-many-limits-but-doesnt-help.yaml at main · goosmurf/istio-buffering · GitHub

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apiVersion: networking.istio.io/v1alpha3
kind: EnvoyFilter
metadata:
  name: buffer-limits
  namespace: istio-gateway
spec:
  configPatches:
    - applyTo: LISTENER
      match:
        context: ANY
      patch:
        operation: MERGE
        value:
          per_connection_buffer_limit_bytes: 32768
          socket_options:
            - description: "Set TCP_NOTSENT_LOWAT to 16k to trigger backpressure"
              level: 6 # IPPROTO_TCP
              name: 25 # TCP_NOTSENT_LOWAT
              int_value: 16384
              state: STATE_LISTENING
    - applyTo: CLUSTER
      match:
        context: ANY
      patch:
        operation: MERGE
        value:
          per_connection_buffer_limit_bytes: 32768
    - applyTo: CLUSTER
      #match:
      #  context: ANY
      match:
        cluster:
          portNumber: 15008
      patch:
        operation: MERGE
        value:
          typed_extension_protocol_options:
            envoy.extensions.upstreams.http.v3.HttpProtocolOptions:
              "@type": type.googleapis.com/envoy.extensions.upstreams.http.v3.HttpProtocolOptions
              explicit_http_config:
                http2_protocol_options:
                  max_concurrent_streams: 100
                  initial_stream_window_size: 65536
                  initial_connection_window_size: 1048576
          http2_protocol_options:
            initial_stream_window_size: 65536
            initial_connection_window_size: 1048576
    - applyTo: NETWORK_FILTER
      match:
        context: GATEWAY
        listener:
          filterChain:
            filter:
              name: "envoy.filters.network.http_connection_manager"
      patch:
        operation: MERGE
        value:
          name: "envoy.filters.network.http_connection_manager"
          typed_config:
            "@type": "type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager"
            http2_protocol_options:
              max_concurrent_streams: 100
              initial_stream_window_size: 65536
              initial_connection_window_size: 1048576
---

apiVersion: networking.istio.io/v1alpha3
kind: EnvoyFilter
metadata:
  name: buffer-limits
  namespace: istio-waypoint
spec:
  # targetRefs:
  #   - kind: Gateway
  #     name: istio-waypoint
  #     group: gateway.networking.k8s.io
  configPatches:
    - applyTo: LISTENER
      match:
        context: ANY
      patch:
        operation: MERGE
        value:
          per_connection_buffer_limit_bytes: 32768
          socket_options:
            - description: "Set TCP_NOTSENT_LOWAT to 16k to trigger backpressure"
              level: 6 # IPPROTO_TCP
              name: 25 # TCP_NOTSENT_LOWAT
              int_value: 16384
              state: STATE_LISTENING
    - applyTo: CLUSTER
      match:
        context: ANY
      patch:
        operation: MERGE
        value:
          per_connection_buffer_limit_bytes: 32768
    - applyTo: CLUSTER
      match:
        context: ANY
      patch:
        operation: MERGE
        value:
          typed_extension_protocol_options:
            envoy.extensions.upstreams.http.v3.HttpProtocolOptions:
              "@type": type.googleapis.com/envoy.extensions.upstreams.http.v3.HttpProtocolOptions
              explicit_http_config:
                http2_protocol_options:
                  max_concurrent_streams: 100
                  initial_stream_window_size: 65536
                  initial_connection_window_size: 1048576
          http2_protocol_options:
            initial_stream_window_size: 65536
            initial_connection_window_size: 1048576
    - applyTo: NETWORK_FILTER
      match:
        context: ANY
        listener:
          filterChain:
            filter:
              name: "envoy.filters.network.http_connection_manager"
      patch:
        operation: MERGE
        value:
          name: "envoy.filters.network.http_connection_manager"
          typed_config:
            "@type": "type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager"
            http2_protocol_options:
              max_concurrent_streams: 100
              initial_stream_window_size: 65536
              initial_connection_window_size: 1048576