Docker container cannot connect to mysql - php

Question

Hello i have a docker container running which has my laravel app, i'm using my database from my local machine. I dont have extra container for my DB. But unfortunately i cannot connect my docker container with my mysql DB.
Here is the docker file
FROM ubuntu:bionic
RUN apt-get update && apt-get -y upgrade && apt-get install -y software-properties-common tzdata
RUN echo "Asia/Dhaka" > /etc/timezone && rm -f /etc/localtime && dpkg-reconfigure -f noninteractive tzdata
RUN add-apt-repository -y ppa:ondrej/php
RUN apt-get update
RUN apt install -y wget php8.0 php8.0-fpm php8.0-common php8.0-mysql php8.0-xml php8.0-dev php8.0-xmlrpc php8.0-curl php8.0-mbstring php8.0-zip
RUN php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
RUN php composer-setup.php
RUN mv composer.phar /usr/local/bin/composer
RUN apt-get install -y php8.0-mongodb unzip
RUN apt-get install -y mysql-client
WORKDIR /app
COPY . .
EXPOSE 3306
and here is my docker-compose.yml file
version: "3"
services:
client:
build: ./
command: tail -f /dev/null
ports:
- 5500:8000
volumes:
- ./:/app
entrypoint: ./init.sh
when i try to access my DB inside from my Container it says
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
when i try to run my **api through postman** it gives me this
{
"status": "failure",
"data": [],
"error_code": 400,
"error_message": "Something went Wrong",
"errors": "SQLSTATE[HY000] [2002] No such file or directory (SQL: select * from `users` where `email` = example#gmail.com limit 1)"
}
What might be the issue? my laravel app should get access from the container because i have exposed the port 3306 on my container. I have configured .env file but still i can not access the database from my application. I enter the container by docker exec and try to connect the DB but it cannot connect. So can anyone tell me that what i'm missing?
Thanks in Advance