php_network_getaddresses: getaddrinfo failed error in Docker's adminer

Hello!

I have problem with access to adminer in my docker container with laravel 5/mysql app. I got error :

 SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed 

Code (markup):

In my docker-compose.yml :

version: '3'

services:

votes_app:
build:
context: ./web
dockerfile: Dockerfile.yml

container_name: votes_app_container
environment:
- APACHE_RUN_USER=#1000
volumes:
- ${APP_PATH_HOST}:${APP_PTH_CONTAINER}
ports:
- 8081:80
working_dir: ${APP_PTH_CONTAINER}


db:
image: mysql:5.6.41
restart: always
environment: 
MYSQL_ROOT_PASSWORD: 1
volumes:
- ${DB_PATH_HOST}:/var/lib/mysql


adminer:
image: adminer
restart: always
ports:
- 8082:8080
links:
- db


votes_composer:
image: composer:1.6
container_name: votes_composer_container
volumes:
- ${APP_PATH_HOST}:${APP_PTH_CONTAINER}
working_dir: ${APP_PTH_CONTAINER}
command: composer install --ignore-platform-reqs

Code (markup):

I rebuilded the app but I failed to login into adminer : https://imgur.com/a/JWVGfBA

I run in console of my OS pointing to other unused 8089 port:

$ docker run -p 8089:8080 -e ADMINER_DEFAULT_SERVER=db adminer
PHP 7.2.11 Development Server started at Thu Nov 1 07:00:46 2018
[Thu Nov 1 07:01:11 2018] ::ffff:172.17.0.1:34048 [200]: /
[Thu Nov 1 07:01:20 2018] ::ffff:172.17.0.1:34052 [302]: /
[Thu Nov 1 07:01:21 2018] ::ffff:172.17.0.1:34060 [403]: /?server=db&username=root

Code (markup):

But again error logining to adminer to 8089 port, but the error message was different :

https://imgur.com/a/a8qM4bt

What is wrong ?

Thanks!