On Wed, Apr 29, 2020 at 7:49 AM Michal Vala <[email protected]> wrote:
> Hello, > I would like to do reverse proxy with haproxy so that part of the path > resolves to the server and I need to do it dynamically, servers are > created and destroyed on the fly. And I need to do the path rewrite so > the server part is removed from the path (I can do that with > http-request set-path %[path,regsub(^/ws-.+\//?,/)] on the backend). > > for example 'http://example.com/server-123abc/api/users' requests > server 'server-123abc' on '/api/users' > > Is it possible to do this completely dynamic, without knowing server > adresses ahead (we generate them dynamically with "random" names) AND > without restarting haproxy to load new configuration? I was thinking > about some regex matching, but I don't know how to do dynamic server > address and if it is somehow possible. > > Thanks > > -- > Michal Vala > Software Engineer, Eclipse Che > Red Hat Czech > > > Hi Michal, Yes, you can do this with the HTTP action 'do-resolve', such as: https://cbonte.github.io/haproxy-dconv/2.0/configuration.html#4.2-http-request%20do-resolve You can extract whatever information and do a DNS resolution and use the resulting IP as a destination. Baptiste
