Is it possible, with Envoy Proxy, to apply an HTTP filter based on the URL?

Question

As the title says, I would like an HTTP filter to apply only if the request is for certain URL path. Doing this at the route level is not possible, because my route is defined like this:

- match:
    prefix: "/api/"
  route:
    cluster: some_backend_service
    prefix_rewrite: "/"

But I would like to apply different (security related) filters for /api/foo than for /api/bar. I can't seem to find a way to do this looking at the documentation, is it even possible? Thanks.

score 1 · Accepted Answer · answered May 05 '22 at 12:50

1

The Composite Filter is exactly what you are looking for. Please refer to this page: https://www.envoyproxy.io/docs/envoy/latest/configuration/http/http_filters/composite_filter.html

answered May 05 '22 at 12:50

larry.li

126
2

I've read the docs and at the moment they support only matching for HTTP headers. Can't find any way to match by URL prefix. – Mitch Sitin Sep 08 '22 at 22:18
@MitchSitin I think you could try matching ":path" pseudo header – larry.li Sep 10 '22 at 01:27

Is it possible, with Envoy Proxy, to apply an HTTP filter based on the URL?

1 Answers1