php-fpm.sock is missing: php7.2 on CentOS 7 - Stack Overflow
php-fpm.sock failed (13 permission denied) - Fix it now
Exporter do not work from docker container with host socket · Issue #43 · hipages/php-fpm_exporter · GitHub
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Load Balancing PHP-FPM with HAProxy and FastCGI - HAProxy Technologies
connect() to unix:/run/php-fpm/www.sock failed (11: Resource temporarily unavailable) while connecting to upstream, client: 1 - Yegor Shytikov - Medium
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GitHub - eustatos/docker-nginx-php-fpm-socket-tcp: Connection of the `php- fpm` and `nginx` containers via socket
How to Configure PHP-FPM with NGINX - JournalDev
Fix : connect() to unix:/var/run/php5-fpm.sock failed
Using Unix Socket for Php-fpm and Nginx Docker Setup
How to Connect NGINX to PHP-FPM Using UNIX or TCP/IP Socket