How to get Client IP using DO Loadbalancer and APISIX as ingress controller

Hi all,

I’m trying to get client IPs behind a DO loadbalancer using APISIX as an ingress controller / API gateway. I enabled the proxy protocol on the DO loadbalancer but can’t get it to work unfortunately.

My current configuration:

dataPlane:
  service:
    annotations:
      service.beta.kubernetes.io/do-loadbalancer-name: "lb-name"
      service.beta.kubernetes.io/do-loadbalancer-size-unit: "1"
      service.beta.kubernetes.io/do-loadbalancer-tls-passthrough: "true"
      service.beta.kubernetes.io/do-loadbalancer-enable-proxy-protocol: "true"
    extraConfig:
      apisix:
        proxy_protocol:
          listen_http_port: 9181
          listen_https_port: 9182
      nginx_config:
        http:
          real_ip_header: proxy_protocol

I’m hosting multiple domains including TLS certificates (from Let’s Encrypt) on the current loadbalancer configuration, but I would like to get the client IPs. Also would like to avoid creating a loadbalancer with TLS terminiation per domain as this could increase costs unnecessarily.

Any help appreciated, thanks !