Protected endpoint.conf

location /authelia {
  internal;
  set $upstream_authelia http://192.168.88.3:9091/api/verify;
  proxy_pass_request_body off;
  proxy_pass $upstream_authelia;
  proxy_set_header Content-Length "";

  # Timeout if the real server is dead
  proxy_next_upstream error timeout invalid_header http_500 http_502 http_503;
  client_body_buffer_size 128k;
  proxy_set_header Host $host;
  proxy_set_header X-Original-URL $scheme://$http_host$request_uri;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $remote_addr;
  proxy_set_header X-Forwarded-Proto $scheme;
  proxy_set_header X-Forwarded-Host $http_host;
  proxy_set_header X-Forwarded-Uri $request_uri;
  proxy_set_header X-Forwarded-Ssl on;
  proxy_redirect  http://  $scheme://;
  proxy_http_version 1.1;
  proxy_set_header Connection "";
  proxy_cache_bypass $cookie_session;
  proxy_no_cache $cookie_session;
  proxy_buffers 4 32k;

  send_timeout 5m;
  proxy_read_timeout 240;
  proxy_send_timeout 240;
  proxy_connect_timeout 240;
}

location / {
  set $upstream_router $forward_scheme://192.168.88.1:80; # MODIFY
  proxy_pass $upstream_router;                            # MODIFY

  auth_request /authelia;
  auth_request_set $target_url https://$http_host$request_uri;
  auth_request_set $user $upstream_http_remote_user;
  auth_request_set $email $upstream_http_remote_email;
  auth_request_set $groups $upstream_http_remote_groups;
  proxy_set_header Remote-User $user;
  proxy_set_header Remote-Email $email;
  proxy_set_header Remote-Groups $groups;

  error_page 401 =302 https://auth.flowerhouse.at/?rd=$target_url;
  client_body_buffer_size 128k;
  proxy_next_upstream error timeout invalid_header http_500 http_502 http_503;

  send_timeout 5m;
  proxy_read_timeout 360;
  proxy_send_timeout 360;
  proxy_connect_timeout 360;

  proxy_set_header Host $host;
  proxy_set_header Upgrade $http_upgrade;
  proxy_set_header Connection upgrade;
  proxy_set_header Accept-Encoding gzip;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  proxy_set_header X-Forwarded-Proto $scheme;
  proxy_set_header X-Forwarded-Host $http_host;
  proxy_set_header X-Forwarded-Uri $request_uri;
  proxy_set_header X-Forwarded-Ssl on;
  proxy_redirect  http://  $scheme://;
  proxy_http_version 1.1;
  proxy_set_header Connection "";
  proxy_cache_bypass $cookie_session;
  proxy_no_cache $cookie_session;
  proxy_buffers 64 256k;
}