Where did docker-compose NGINX-php-fpm-postgres go wrong?

Question

PHP

Plz tell me what I have not completed, there is also a problem, when opening localhost, the nginx page opens, and the php
Nginx information page should open. Port 80 must be forwarded out. The config file must be forwarded from outside. The web directory must be forwarded from outside.
php-fpm. The web directory must be forwarded from outside. Configuration files must be forwarded from outside. Additionally, php-memcached, php-ldap, php-amqp must be installed.
memcached.
postgres. Port 5432 must be forwarded out. The config file must be forwarded from outside. The database directory must be forwarded from outside.
Administrator. Port 8080 must be forwarded out.

Stack check:
Open an address in a browser (for example, localhost/). The php information page should be displayed. To do this, the index.php file with the content <?php phpinfo(); must be in the web directory; ?>. On the page, we make sure that the specified modules are installed and connected: php-memcached, php-ldap, php-amqp.
Open the address in the browser (for example, localhost:8080/). Should get into the Adminer interface. Enter credentials to connect to the database. Should successfully connect to the database.
nginx.conf

server {
    listen 127.0.0.1:80;
    server_name localhost;
    index index.php;
    root /var/www/deck/fpm;
    error_log /var/log/nginx/error.log;
    
    location / {
       try_files $uri /$uri /index.php?query_string;
    }
    
    location ~* \.php$ {
       try_files $uri $uri/ /index.php last;
       fastcgi_split_path_info  (.+?\.php)(/.*)$;
       fastcgi_pass php:9000;
       fastcgi_index index.php;
       include fastcgi_params;
       fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
       fastcgi_param PATH_INFO $fastcgi_path_info;
       }
    location ~* .php/ { rewrite  (.*.php)/ $1 last; }
    }

Dockerfile

FROM php:7.4-fpm
RUN apt-get update \
  && apt-get install -y \
  && apt-get install -y memcached \
  && apt-get install -y libldap2-dev \
     apt-utils \
     curl \
     libpq-dev \
     && docker-php-ext-install -j$(nproc) pgsql \
     && docker-php-ext-install -j$(nproc) pdo_pgsql \

docker-compose

version: '3.8'
services:
  nginx:
    image: nginx:latest
    ports:
      - 80:80
    links:
      - fpm
    volumes:
      - ./www:/var/www/fpm  
  fpm: 
    build:
      context: .
      dockerfile: fpm/Dockerfile
    volumes:
      - ./www:/var/www/fpm
    links:
      - postgres

  postgres:
    image: postgres
    ports:
      - 5432:5432
    environment:
      - POSTGRES_DB=root
      - POSTGRES_USER=root
      - POSTGRES_PASSWORD=root
 
  adminer:
    image: adminer
    restart: always
    ports:
      - 8080:8080

Answer 1

Offhand.

1. In nginx config:
   root /var/www/deck/fpm;
   In docker-compose:
   volumes:
   - ./www:/var/www/fpm
   
2. In nginx config:
   fastcgi_pass php:9000;
   There is no php in docker-compose
   at all, there is fpm