Docker - pdo_mysql (nginx + PHP7 + MariaDB + phpMyAdmin) Symfony + Doctrine - symfony

Question

I have a little bit problem with install pdo_mysql into my docker container.
In Symfony I got this error:
PDOException PDOException DriverException
HTTP 500 Internal Server Error
An exception occurred in driver: could not find driver
Symfony - config.yml
doctrine:
dbal:
driver: pdo_mysql
Dockerfile
FROM phpdockerio/php7-fpm:latest
# Install selected extensions and other stuff
RUN apt-get update \
&& apt-get -y --no-install-recommends install vim mc apt-utils \
&& php7-pdo_mysql php7-pdo \
&& apt-get clean; rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
/usr/share/doc/*
WORKDIR "/var/www/project"
docker-compose.yml
version: "3.1"
services:
mysql:
image: mariadb
container_name: project-mariadb
environment:
MYSQL_ROOT_PASSWORD: root
phpmyadmin:
image: phpmyadmin/phpmyadmin
container_name: project-pma
restart: always
links:
- mysql
ports:
- 8183:80
environment:
PMA_HOST: mysql
PMA_USER: root
PMA_PASSWORD: root
webserver:
image: nginx:alpine
container_name: project-websrv
working_dir: /var/www/project
volumes:
- ../../Sources/project/trunk/src/:/var/www/project
- ./phpdocker/nginx/nginx.conf:/etc/nginx/conf.d/default.conf
ports:
- "8080:80"
links:
- php-fpm
php-fpm:
build: phpdocker/php-fpm
container_name: project-php
working_dir: /var/www/project
volumes:
- ../../Sources/project/trunk/src/:/var/www/project
- ./phpdocker/php-fpm/php-ini-overrides.ini:/etc/php/7.0/fpm/conf.d/99-
overrides.ini
links:
- mysql
docker-compose ps
d:\Work\DockerContainers\project>docker-compose ps
Name Command State Ports
---------------------------------------------------------------------------
project -mariadb docker-entrypoint.sh mysqld Up 3306/tcp
project -php /bin/sh -c /usr/bin/php-fpm Up 9000/tcp
project -pma /run.sh phpmyadmin Up 0.0.0.0:8183->80/tcp
project -websrv nginx -g daemon off; Up 0.0.0.0:8080->80/tcp
d:\Work\DockerContainers\project>
I have this linux version:
PRETTY_NAME="Debian GNU/Linux 8 (jessie)"
NAME="Debian GNU/Linux"
VERSION_ID="8"
VERSION="8 (jessie)"
ID=debian
I tried to change the package names for pdo_mysql in Dockerfile what I found on the forums, I tried installing through apt-get install directly in the container, but nothing helped I always get the same message:
/bin/sh: 1: docker-php-ext-install: not found (docker-compose build)
E: Unable to locate package php7-mysql (pdo_mysql etc.) (root in docker container)
php-ini-overrides.ini
upload_max_filesize = 100M
post_max_size = 108M
extension=pdo.so
extension=pdo_mysql.so
I don´t know if is this problem in Symfony configuration or problem with docker
Can you help me, please?
Thanks a lot