mysql connection error problem in docker?

Question

MySQL

I transferred the project to docker, everything turned out fine, only when requesting the mysql application it gives an error:

"SQLSTATE[HY000] [2002] No such file or directory (SQL: select count(*) as ......"

all required libraries are installed

php:
build:
context: ./docker/php
volumes:
- ./server:/var/www/fileshare
- ./docker/php/php.ini:/usr/local/etc/php/php.ini
links:
- mysql
mysql:
image: mysql:5.7
ports:
- '3306:3306'
volumes:
- ./docker/mysql:/var/lib/mysql
environment:
- MYSQL_ROOT_PASSWORD=password
- MYSQL_DATABASE=fileshare

connection to the database through the clients is fine, the application performs migrations successfully, but the requests do not go through! what is the reason?

Answer 1

First of all, in this situation, you need to look at the mysql log