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 a 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 2 · Accepted Answer · answered May 05 '22 at 12:50

2

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

136
3

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