nginx image proxy

location ~ ^/image/([0-9a-zA-Z\-\_]+)\.jpeg {
    resolver 8.8.8.8;
    proxy_pass https://i.ytimg.com/vi/$1/maxresdefault.jpg;
    proxy_read_timeout 60;
    proxy_set_header Host i.ytimg.com;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header realip $remote_addr;
    image_filter test;
    image_filter_buffer 10M;
    image_filter_jpeg_quality 85;
    error_page 415 = /415.png;
    error_page 404 = /404.png;
    expires 1y;
    add_header Cache-Control "public";
    }