Set-Filter-State Network Filter

• This filter should be configured with the type URL type.googleapis.com/envoy.extensions.filters.network.set_filter_state.v3.Config.

• v3 API reference

This filter is configured with a sequence of values to update the connection filter state using the connection data. The filter state value can then be used for routing, load balancing decisions, telemetry, etc. See the well-known filter state keys for the controls used by Envoy extensions.

Warning

This filter allows overriding the behavior of other extensions and significantly and indirectly altering the connection processing logic.

Examples

A sample filter configuration that propagates the downstream SNI as the upstream SNI:

on_new_connection:
- object_key: envoy.network.upstream_server_name
  format_string:
    text_format_source:
      inline_string: "%REQUESTED_SERVER_NAME%"

Statistics

Currently, this filter generates no statistics.