Gzip compression EnvoyFilter

gzip-compressor.yaml

apiVersion: networking.istio.io/v1alpha3
kind: EnvoyFilter
metadata:
  annotations:
    description: Ensures all Sidecars are capable of returning a gzip response
    name: Enable Gzip
  name: enable-gzip
  namespace: istio-system
spec:
  configPatches:
  - applyTo: HTTP_FILTER
    match:
      context: SIDECAR_INBOUND
      listener:
        filterChain:
          filter:
            name: envoy.filters.network.http_connection_manager
            subFilter:
              name: envoy.filters.http.router
    patch:
      operation: INSERT_BEFORE
      value:
        name: envoy.filters.http.compressor
        typed_config:
          '@type': type.googleapis.com/envoy.extensions.filters.http.compressor.v3.Compressor
          compressor_library:
            name: text_optimized
            typed_config:
              '@type': type.googleapis.com/envoy.extensions.compression.gzip.compressor.v3.Gzip
              chunk_size: 4096
              encoder_mode: DEFAULT
              input_block_bits: 24
              quality: 5
              window_bits: 15
          request_direction_config:
            common_config:
              enabled:
                default_value: false
                runtime_key: request_direction_config_enabled
          response_direction_config:
            common_config:
              content_type:
              - application/hal+json
              - application/atom+xml
              - application/javascript
              - application/x-javascript
              - application/json
              - application/rss+xml
              - application/vnd.ms-fontobject
              - application/x-font-ttf
              - application/x-web-app-manifest+json
              - application/xhtml+xml
              - application/xml
              - font/opentype
              - image/svg+xml
              - image/x-icon
              - text/css
              - text/javascript
              - text/html
              - text/plain
              - text/xml
              - text/x-component
              enabled:
                default_value: true
                runtime_key: response_direction_config_enabled
              min_content_length: 860
            remove_accept_encoding_header: true
  priority: -10