Unable to connect to pgsql in Laravel in Docker - laravel

Question

I am developing a Web application using Laravel. I am an experienced Laravel developer. But, now I am trying to use Docker as my development environment. But I am so new to Docker. Now I am trying to connect to the Postgres database. I added the Postgres docker image in the docker-composer.yml as well. But when I run migration, I am getting error and it is not connecting to the database.
This is my docker-compose.xml file.
version: '2'
services:
web:
build:
context: ./
dockerfile: docker/web.docker
volumes:
- ./:/var/www
ports:
- "80:80"
- "443:443"
- "9000:9000"
links:
- app
app:
build:
context: ./
dockerfile: docker/app.docker
volumes:
- ./:/var/www
links:
- mysql
- redis
- beanstalk
- cache
environment:
- "DB_PORT=3306"
- "DB_HOST=mysql"
- "REDIS_PORT=6379"
- "REDIS_HOST=redis"
mysql:
image: mysql:5.7.18
environment:
- "MYSQL_ROOT_PASSWORD=secret"
- "MYSQL_DATABASE=docker"
ports:
- "3306:3306"
pgsql:
image: postgres:10.1
restart: always
environment:
- POSTGRES_DB=docker
- POSTGRES_USER=root
- POSTGRES_PASSWORD=secret
ports:
- 5431:5431
volumes:
- ./.docker/conf/postgres/:/docker-entrypoint-initdb.d/
redis:
image: redis:3.0
ports:
- "6379:6379"
beanstalk:
image: schickling/beanstalkd
ports:
- "11300:11300"
cache:
image: memcached:alpine
ports:
- "11211:11211"
I know I added the Mysql image as well. When I connect to the Mysql image, it was working. When I connect to the Postgres, I am getting error.
This is my database settings in env file for connecting to the Postgres.
DB_CONNECTION=pgsql
DB_HOST=pgsql
DB_PORT=5431
DB_DATABASE=docker
DB_USERNAME=root
DB_PASSWORD=secret
When I run migration in the terminal like this
docker-compose exec app php artisan migrate --seed
I got this error.
In Connection.php line 647:
could not find driver (SQL: select * from information_schema.tables where table_schema = public and table_name = migrations)
In PDOConnection.php line 50:
could not find driver
In PDOConnection.php line 46:
could not find driver
What is wrong with my installation?

Answer 1

You didn't add your docker/app.docker details, but if this is PHP running, you need to make sure both php7-pgsql and php7-pdo are installed on this container. driver is usuallu JUST THAT phpX-mysql or phpX-pgsql. X is the optional version number, depending on which repo you're using for php. i.e with default ubuntu repo php-pgsql will be just fine, but with alpine images you have to use php7-pgsql.
with sury repo, you'll have to use specific version i.e php7.2-pgsql.