Why can't the php-fpm container connect to memcached?

Question

Docker

I am using Laradock . In docker-compose.yml, I activated the memcached installation for php-fpm, I didn’t touch anything else. I launch containers and get the following error on the site:

At the same time, I try to launch it in my console telnet 127.0.0.1 11211and connect normally. It feels like the php-fpm container is not seeing the memcached container.
I'm just getting acquainted with the docker, help me figure out what's wrong.

Answer 1

Found my mistake. In the settings for php-fpm, you had to specify the correct extra_hosts.