为什么laradock环境获取客户端IP都是容器的ip

目前获取到的全是容器的ip：172.19.0.1，当前nginx的配置。目前获取到的全是容器的ip：172.19.0.1，当前nginx的配置。

获取命令客户端ip命令是laravel自带的

$request->ip();
$request->ips();
$request->getClientIp();
$request->getClientIps();

获取到的全是容器的ip

server {

    listen 80;
    listen [::]:80;

    # For https
    # listen 443 ssl;
    # listen [::]:443 ssl ipv6only=on;
    # ssl_certificate /etc/nginx/ssl/default.crt;
    # ssl_certificate_key /etc/nginx/ssl/default.key;

    server_name yzc.test;
    root /var/www/yzc/public;
    index index.php index.html index.htm;

    location / {
         try_files $uri $uri/ /index.php$is_args$args;
    }

    location ~ \.php$ {

        try_files $uri /index.php =404;
        fastcgi_pass php-upstream;
        fastcgi_index index.php;
        fastcgi_buffers 16 16k;
        fastcgi_buffer_size 32k;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        #fixes timeouts
        fastcgi_read_timeout 600;
        include fastcgi_params;
    }

    location ~ /\.ht {
        deny all;
    }

    location /.well-known/acme-challenge/ {
        root /var/www/letsencrypt/;
        log_not_found off;
    }

    error_log /var/log/nginx/laravel_error.log;
    access_log /var/log/nginx/laravel_access.log;
}