How to run php-fpm:7.1-work with socket

I am trying to get devilbox/php-fpm:7.1-work to work with socket and has override the php-fpm.conf using this

daemonize = no
listen = /var/run/php-fpm.sock
listen.mode = 0666

and mount it to /etc/php-fpm-custom.d

my nginx conf is like this

location ~ ^/(app_dev|index)\.php(/|$) {
        proxy_connect_timeout 300;
        proxy_send_timeout 300;
        proxy_read_timeout 300;
        fastcgi_connect_timeout 300;
        fastcgi_send_timeout 300;
        fastcgi_read_timeout 300;
        fastcgi_pass unix:/var/run/php-fpm.sock;
        fastcgi_index app_dev.php;
        fastcgi_split_path_info ^(.+\.php)(/.*)$;
        fastcgi_buffering off;
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
        include fastcgi_params;

maybe anyone can help to point up why i got this on nginx log

2020/03/20 03:29:01 [crit] 9#9: *16 connect() to unix:/var/run/php-fpm.sock failed (2: No such file or directory) while connecting to upstream, client:, server: localhost:8080, request: “GET /checkout-step1 HTTP/1.1”, upstream: “fastcgi://unix:/var/run/php-fpm.sock:”, host: “localhost:8080”

thank you

Sockets won’t work, as the PHP-FPM socket is not available on the webserver. These are two different Docker images/container.