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When I run docker-compose up and do some composer commands, I get error

In Connection.php line 664: could not find driver (SQL: select id, name from users In Connector.php line 68: could not find driver …

Why cant Laravel connect to mysql? I can do mysql -h db in docker-compose exec web bash and it works.

My setup

docker-compose.yml

version: '3'

services:
  web:
    build: ./webserver
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - //docker/dockertest/webserver/app:/var/www/vhosts/app
    links:
      - db
    command:
       - /usr/local/bin/apache2_install_composer_dependencies.sh

  db:
    image: mysql:8.0
    container_name: db
    ports:
      - "3306:3306"
    command: --default-authentication-plugin=mysql_native_password
    environment:
      MYSQL_DATABASE: myDb
      MYSQL_USER: user
      MYSQL_PASSWORD: test
      MYSQL_ROOT_PASSWORD: test
    volumes:
      - //docker/dockertest/install/db_dump:/docker-entrypoint-initdb.d
      - persistent:/var/lib/mysql
    networks:
      - default

  phpmyadmin:
    image: phpmyadmin/phpmyadmin
    links:
      - db:db
    ports:
      - 8000:80
    environment:
      MYSQL_USER: user
      MYSQL_PASSWORD: test
      MYSQL_ROOT_PASSWORD: test



volumes:
  persistent:

Laravel .env (I reference these values in config/database.php)

...
DB_CONNECTION=mysql
#host points to Docker container
DB_HOST=db
DB_PORT=3306
DB_DATABASE=myDb
DB_USERNAME=user
DB_PASSWORD=test
....

webserver/Dockerfile

FROM php:7.2.19-apache-stretch

# Configure Apache server
COPY config_apache/sites-available /etc/apache2/sites-available

# Create symlink in sites-enabled
WORKDIR /etc/apache2/sites-enabled
RUN ln -s /etc/apache2/sites-available/app.conf app.conf

RUN mkdir -p /var/www/vhosts/app/logs

COPY /build_files/install_composer_dependencies.sh /usr/local/bin/apache2_install_composer_dependencies.sh

RUN apt-get update -y && apt-get install -y  curl nano libapache2-mod-geoip git zip unzip mysql-client

# Install Composer
RUN curl -o /tmp/composer-setup.php https://getcomposer.org/installer 
&& curl -o /tmp/composer-setup.sig https://composer.github.io/installer.sig 
# Verify installer
&& php -r "if (hash('SHA384', file_get_contents('/tmp/composer-setup.php')) !== trim(file_get_contents('/tmp/composer-setup.sig'))) { unlink('/tmp/composer-setup.php'); echo 'Invalid installer' . PHP_EOL; exit(1); }" 
&& php /tmp/composer-setup.php --no-ansi --install-dir=/usr/local/bin --filename=composer --snapshot 
&& rm -f /tmp/composer-setup.*

RUN a2enmod rewrite
RUN a2enmod geoip
RUN service apache2 restart

2

Answers


  1. Chosen as BEST ANSWER

    Adding RUN docker-php-ext-install mysqli pdo pdo_mysql (without mysql) to Dockerfile as @NigelRen suggested resolved this error.


  2. try to install php-mysql with following command sudo apt-get install php-mysql and restart your server

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