Keycloak docker behind nginx not work

Configuring the server
1

Hi.
This is we docker-compose file:

version: '3.7'
services:
  postgres:
      image: postgres:13.1
      container_name: postgres
      environment:
        POSTGRES_DB: keycloak
        POSTGRES_USER: keycloak
        POSTGRES_PASSWORD: password

  keycloak:
      image: quay.io/keycloak/keycloak:latest
      container_name: keycloak
      environment:
        DB_VENDOR: POSTGRES
        DB_ADDR: postgres
        DB_DATABASE: keycloak
        DB_USER: keycloak
        DB_PASSWORD: password
        KEYCLOAK_USER: admin
        KEYCLOAK_PASSWORD: password
        PROXY_ADDRESS_FORWARDING: "true"
      ports:
         - 192.168.50.199:8080:8080
      volumes:
            - key_data:/opt/jboss/keycloak/standalone/
      depends_on:
        - postgres
volumes:
  key_data:
      name: key_data
      driver: local

And we nginx config is:

server {
        listen 80 ;
        server_name identity.domain.com www.identity.domain.com;
        return 301 https://$server_name$request_uri;
}

server {
        listen 443 ssl;
        server_name identity.domain.com www.identity.domain.com;
        ssl on;
        ssl_certificate /etc/ssl/domain.com.pem;
        ssl_certificate_key /etc/ssl/domain.com.key;

   location / {
           proxy_pass  http://192.168.50.199:8080;
           proxy_http_version 1.1;
           proxy_set_header Host               $host;
           proxy_set_header X-Real-IP          $remote_addr;
           proxy_set_header X-Forwarded-For    $proxy_add_x_forwarded_for;
           proxy_set_header X-Forwarded-Proto  $scheme;
           proxy_set_header X-Forwarded-Port $server_port;
           proxy_buffering off;
           proxy_set_header Referer $http_referer;
           proxy_set_header Upgrade $http_upgrade;
           proxy_set_header Connection ‘upgrade’;
    }

On ip address is ok, but with a domain not work and we get welcome to nginx page.
Even we change config keycloak manually, means we bind config file standalon.xml to host and change this line:

<http-listener name="default" socket-binding="http" redirect-socket="https" proxy-address-forwarding="${env.PROXY_ADDRESS_FORWARDING:true}" enable-http2="true"/>
                <https-listener name="https" socket-binding="https" proxy-address-forwarding="${env.PROXY_ADDRESS_FORWARDING:true}" security-realm="ApplicationRealm" enable-http2="true"/>

but not work yet. Where did I go wrong?
thanks.