I have a Kubernetes cluster with an external load balancer on a self hosted server running NGINX. I tried to activate the proxy_protocol in order to get the real_ip of clients but NGINX logs are

2020/05/11 14:57:54 [error] 29614#29614: *1325 broken header: "▒▒▒▒▒▒▒Ωߑa"5▒li<c▒*▒ ▒▒▒s▒       ▒6▒▒▒▒▒X▒▒o▒▒▒E▒▒i▒{ ▒/▒0▒+▒,̨̩▒▒ ▒▒
▒▒/5▒" while reading PROXY protocol, client: 51.178.168.233, server: 0.0.0.0:443

Here is my NGINX configuration file:

worker_processes 4;
worker_rlimit_nofile 40000;

events {
    worker_connections 8192;
}

stream {

    upstream rancher_servers_http {
        least_conn;
        server <IP_NODE_1>:80 max_fails=3 fail_timeout=5s;
        server <IP_NODE_2>:80 max_fails=3 fail_timeout=5s;
        server <IP_NODE_3>:80 max_fails=3 fail_timeout=5s;
    }
    server {
        listen     80;
        proxy_protocol on;
        proxy_pass rancher_servers_http;
    }

    upstream rancher_servers_https {
        least_conn;
        server <IP_NODE_1>:443 max_fails=3 fail_timeout=5s;
        server <IP_NODE_2>:443 max_fails=3 fail_timeout=5s;
        server <IP_NODE_3>:443 max_fails=3 fail_timeout=5s;
    }

    server {
        listen     443 ssl proxy_protocol;
        ssl_certificate /certs/fullchain.pem;
        ssl_certificate_key /certs/privkey.pem;
        proxy_pass rancher_servers_https;
        proxy_protocol on;
    }
}

Here is my configmap for the ingress-controller:

apiVersion: v1
data:
  compute-full-forwarded-for: "true"
  proxy-body-size: 500M
  proxy-protocol: "true"
  use-forwarded-headers: "true"
kind: ConfigMap
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: '{"apiVersion":"v1","data":null,"kind":"ConfigMap","metadata":{"annotations":{},"labels":{"app":"ingress-nginx"},"name":"nginx-configuration","namespace":"ingress-nginx"}}'
  creationTimestamp: "2019-12-09T13:26:59Z"
  labels:
    app: ingress-nginx
  name: nginx-configuration
  namespace: ingress-nginx

Everything was working fine before I add the proxy_protocol directive but now I got all these broken headers errors and I can't reach any services behind ingresses without getting a connection reset error.

What could be wrong with my config ?

Should I use an http reverse proxy instead of a tcp reverse proxy ?

Thank you.

Edit:

I should also say that I doesn't have any service of type LoadBalancer in my cluster. Should I have one ? I'm thinking of Metallb but I'm not sure what it will add to my configuration as I'm already load balancing to nodes with nginx.