Envoy Header-To-Metadata Filter
This filter should be configured with the name envoy.filters.http.header_to_metadata.
A typical use case for this filter is to dynamically match requests with load balancer subsets. For this, a given header’s value would be extracted and attached to the request as dynamic metadata which would then be used to match a subset of endpoints.
A corresponding upstream cluster configuration could be:
- name: versioned-cluster
type: EDS
lb_subset_config:
- keys:
- default
Statistics
Currently, this filter generates no statistics.