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Add Request Headers

Ambassador can add a dictionary of HTTP headers that can be added to each request that is passed to a service.

The add_request_headers annotation

The add_request_headers attribute is a dictionary of header: value pairs. Envoy dynamic values %DOWNSTREAM_REMOTE_ADDRESS_WITHOUT_PORT% and %PROTOCOL% are supported, in addition to static values.

A basic example

---
apiVersion: ambassador/v0
kind:  Mapping
name:  qotm_mapping
prefix: /qotm/
add_request_headers:
  x-test-proto: "%PROTOCOL%"
  x-test-ip: "%DOWNSTREAM_REMOTE_ADDRESS_WITHOUT_PORT%"
  x-test-static: This is a test header
service: qotm

will add the protocol, client IP, and a static header to /qotm/.

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