Docker Container cant connect to other container – nginx in alpine to nginx in alpine

I’m confused about making a connection from nginx alpine to nginx alpine

both use laravel 9

on the host I can access both using http://localhost:8080
and http://localhost:5001

but when I try to use guzzle in frontend like this

$response = $http->get('http://dashboard:5001');

result is

cURL error 7: Failed to connect to dashboard_service port 5001 after 0 ms: 
Connection refused 

and I try to curl from frontend container to dashboard container the result is connection refused.I can ping it, but curl not work

this is my docker-compose.yml

version: "3.8"

networks:
  networkname:

services:
  frontend:
    build:
      context: .
      dockerfile: ./file/Dockerfile
    container_name: frontend
    ports:
      - 8080:80
    volumes:
      - ./frontend:/code
      - ./.docker/php-fpm.conf:/etc/php8/php-fpm.conf
      - ./.docker/php.ini-production:/etc/php8/php.ini
      - ./.docker/nginx.conf:/etc/nginx/nginx.conf
      - ./.docker/nginx-laravel.conf:/etc/nginx/modules/nginx-laravel.conf
    networks:
      - networkname

  dashboard:
    build:
      context: .
      dockerfile: ./file/Dockerfile
    container_name: dashboard
    ports:
      - 5001:80
    volumes:
      - ./dashboard:/code
      - ./.docker/php-fpm.conf:/etc/php8/php-fpm.conf
      - ./.docker/php.ini-production:/etc/php8/php.ini
      - ./.docker/nginx.conf:/etc/nginx/nginx.conf
      - ./.docker/nginx-laravel.conf:/etc/nginx/modules/nginx-laravel.conf
    networks:
      - networkname

this is my dockerfile

FROM alpine:latest

WORKDIR /var/www/html/

# Essentials
RUN echo "UTC" > /etc/timezone
RUN apk add --no-cache zip unzip curl sqlite nginx supervisor

# Installing PHP
RUN apk add --no-cache php8 
    php8-common 
    php8-fpm 

# Installing composer
RUN curl -sS https://getcomposer.org/installer -o composer-setup.php
RUN php composer-setup.php --install-dir=/usr/local/bin --filename=composer
RUN rm -rf composer-setup.php

# Configure supervisor
RUN mkdir -p /etc/supervisor.d/
COPY .docker/supervisord.ini /etc/supervisor.d/supervisord.ini

# Configure PHP
RUN mkdir -p /run/php/
RUN mkdir -p /test
RUN touch /run/php/php8.0-fpm.pid

CMD ["supervisord", "-c", "/etc/supervisor.d/supervisord.ini"]

this is my nginx conf

server {
listen 80;
server_name localhost;
root /code/public;

add_header X-Frame-Options "SAMEORIGIN";
add_header X-Content-Type-Options "nosniff";

index index.php;

charset utf-8;

location / {
    try_files $uri $uri/ /index.php?$query_string;
}


location = /favicon.ico { access_log off; log_not_found off; }
location = /robots.txt  { access_log off; log_not_found off; }

error_page 404 /index.php;

location ~ .php$ {
    fastcgi_pass localhost:9000;
    fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
    include fastcgi_params;
}

location ~ /.(?!well-known).* {
    deny all;
}
}

I’m confused about having to set it up in docker, nginx or alpine linux

Thanks.