K8S中应用无法获取用户真实ip问题排查过程

*.*.94.97 - - [17/Jul/2024:02:02:54 +0000] "POST /***/notify/my-page HTTP/1.1" 200 182 "/report/home?type=2&id=2612&lang=zh_CN" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36" "*.*.44.200"
*.*.94.97 - - [17/Jul/2024:02:02:54 +0000] "POST /***/notify/my-page HTTP/1.1" 200 182 "/home?lang=zh_CN" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36" "*.*.140.102"
*.*.94.97 - - [17/Jul/2024:02:02:56 +0000] "POST /***/msg/notify/my-page HTTP/1.1" 200 59 "/user/message/info?lang=zh_CN" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36" "*.*.52.192"

log_format  main   '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    public static String getClientIP(HttpServletRequest request, String... otherHeaderNames) {
        String[] headers = new String[]{"X-Forwarded-For", "X-Real-IP", "Proxy-Client-IP", "WL-Proxy-Client-IP", "HTTP_CLIENT_IP", "HTTP_X_FORWARDED_FOR"};
        if (ArrayUtil.isNotEmpty(otherHeaderNames)) {
            headers = (String[])ArrayUtil.addAll(new String[][]{headers, otherHeaderNames});
        }

        return getClientIPByHeader(request, headers);
    } 

location ~ ^/(admin-api|rpc-api)/ {
    client_max_body_size 32m;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_pass http://***:30001;
}