How to launch a service like mysql in a docker container? - mysql

Question

So I've tried to create a docker-compose.yml file to create one container for my web app with laravel and an other container for my database with mariadb. I've tried to link those two container together so that laravel could fetch data from mariadb. The problem is that my laravel container does not have a mysql socket file, so it can't use mysql. I'm pretty sure that I've missed something, or that I don't understood something because nothing works. So my question is how do we propely connect a archlinux container with laravel to a mysql container? Here's my docker-compose file
version: '3'
services:
database:
build: ./database
container_name: database.dev
command: mysqld --user=root --verbose
ports:
- "3307:3306"
restart: always
web:
build: .
volumes:
- "/app"
ports:
- "8000:8000"
links:
- database
depends_on:
- database
When I'm trying to install mysql in my archlinux container, mysql won't create a service at /etc/init.d/mysql or event a socket file at /run/mysqld/mysqld.sock. I get this output when I try to use mysql in my container terminal.
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/run/mysqld/mysqld.sock' (2 "No such file or directory")
Here are my docker files:
database/Dockerfile
FROM mysql:latest
RUN mkdir -p /db
WORKDIR /db
COPY . /db
RUN cd /db
RUN /etc/init.d/mysql start
Dockerfile
FROM base/archlinux
RUN mkdir -p /app
WORKDIR /app
COPY . /app
RUN pacman -Syu --noconfirm
RUN pacman -S openssh composer php mariadb --noconfirm
RUN groupadd -g 89 mysql &>/dev/null
RUN useradd -u 89 -g mysql -d /var/lib/mysql -s /bin/false mysql &>/dev/null
#RUN chown -R mysql:mysql var/lib/mysql &>/dev/null
RUN mysql_install_db --user=mysql --basedir=/usr --datadir=/var/lib/mysql
RUN COMPOSER_ALLOW_SUPERUSER=1
RUN cd /app
RUN /usr/bin/composer install
RUN echo APP_KEY= > .env
RUN echo DB_USERNAME=root >> .env
RUN echo DB_PASSWORD= >> .env
RUN cat php.ini > /etc/php/php.ini #my custom configuration for the project
RUN php artisan key:generate
RUN ln -srf storage/app/public public/storage
RUN php artisan storage:link
VOLUME ["/app"]
EXPOSE 8000
CMD php /app/artisan serve --host=0.0.0.0 --port=8000
I don't feel like I'm doing the proper thing, anyone can help me or show me the right way?

Answer 1

This repository on GitHub is an ArchLinux based image for docker, it includes PHP, PHP-composer, MySQL, PostgreSQL, and MariaDB. I just had to tweak it a bit to make it work and suits my needs!