docker nginx dns is not recognised - docker

Question

I have a problem with my Docker configuration.
I would like to set a DNS name on an Ubuntu server 22.04. However, this is not achieved. I run my applications via local images. The proxy pass runs via a NGINX container. I can reach the ports without problems, but as soon as I set the DNS domain, it is not reached.
docker-compose.yml
version: "3.9"
services:
test_proxy:
network_mode: bridge
image: nginx
tty: true
container_name: test_nginx
ports:
- '80:80'
- '443:443'
depends_on:
- test_client
- test_backend
networks:
- test-network
test-client:
image: test_client
container_name: test_client
ports:
- '1000:80'
restart: 'always'
networks:
- test-network
test_backend:
image: test_backend
restart: 'always'
ports:
- "2000:2000"
expose:
- "2000"
depends_on:
- test_db
networks:
- test-network
test_db:
image: mongo
ports:
- "27017:27017"
container_name: test_db
volumes:
- /test/test-db
- test_data:/test_db
networks:
- test-network
restart: always
volumes:
test_data:
networks:
test-network:
driver: bridge
nginx.conf in nginx container
upstream test_client {
server test_client:80;
}
upstream test_backend {
server test_backend:80;
}
server {
listen 80;
listen [::]:80;
server_name test.eu www.test.eu;
# ssl_certificate /run/secrets/ssl_cert;
# ssl_certificate_key /run/secrets/ssl_key;
# ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
# ssl_ciphers HIGH:!aNULL:!MD5;
index index.html index.htm index.nginx-debian.html;
add_header Cache-Control 'no-store, no-cache';
add_header X-Frame-Options "SAMEORIGIN";
add_header X-XSS-Protection "1; mode=block";
add_header X-Content-Type-Options "nosniff";
expires 0;
charset utf-8;
root /usr/share/nginx/html;
resolver 127.0.0.11 valid=10s;
set $session_name nginx_session;
location ~ /\.(?!well-known).* {
deny all;
}
# frontend
location / {
proxy_pass http://test_client$request_uri;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $http_connection;
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
location = /robots.txt { access_log off; log_not_found off; }
access_log off;
error_log /var/log/nginx/quasar.myapp.com-error.log error;
# backend
location /api {
proxy_pass http://test_backend$request_uri;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $http_connection;
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
listen 443;
listen [::]:443;
# redirect server error pages to the static page /50x.html
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
}
I have already tried to set the resolver to resolver 127.0.0.11 ipv6=off valid=10s;