Hi

Is it somehow possible to get nginx to validate the mTLS from an customer header ?
Maybe by setting it to the variable of https://nginx.org/en/docs/http/ngx_http_ssl_module.html#var_ssl_client_cert , but I cannot find an way to do this.
Im asking, because AWS ALB, sends the client-cert as part of their custom header "X-Amzn-Mtls-Clientcert".
ref: https://docs.aws.amazon.com/elasticloadbalancing/latest/application/mutual-authentication.html

I can see the header just fine in nginx, but I find no way to validate this.

Setup is extremely simple.
WAN -> ALB -> NGINX

Thanks