**setting.py**
"""
Django settings for server project.

Generated by 'django-admin startproject' using Django 3.0.5.

For more information on this file, see
https://docs.djangoproject.com/en/3.0/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.0/ref/settings/
"""

import os

from datetime import timedelta

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.0/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = ###

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = ['*']
CORS_ALLOW_CREDENTIALS = True

CORS_ORIGIN_WHITELIST = [
    'http://localhost',
    'http://127.0.0.1',
]


REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework_simplejwt.authentication.JWTAuthentication',
    ),
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.AllowAny',
    ],
    'DEFAULT_VERSIONING_CLASS': 'rest_framework.versioning.NamespaceVersioning',
    'DEFAULT_PAGINATION_CLASS': 'core.utils.StandardResultsSetPagination',
    'PAGE_SIZE': 20,
}

AUTHENTICATION_BACKENDS = [
    'django.contrib.auth.backends.ModelBackend',
]

AUTH_USER_MODEL = 'authentication.User'

# Application definition

SIMPLE_JWT = {
    'USER_ID_FIELD': 'userid',
    'ACCESS_TOKEN_LIFETIME': timedelta(days=30)
}

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',

    'rest_framework',
    'rest_framework.authtoken',
    'corsheaders',

    'authentication',
    'core',
    'staff',
]

MIDDLEWARE = [
    'corsheaders.middleware.CorsMiddleware',
    'whitenoise.middleware.WhiteNoiseMiddleware',
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'server.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'server.wsgi.application'


# Database
# https://docs.djangoproject.com/en/3.0/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': os.environ.get('DB_NAME'),
        'USER': os.environ.get('DB_USER'),
        'PASSWORD': os.environ.get('DB_PASS'),
        'HOST': os.environ.get('DB_HOST'),
        'POST': os.environ.get('DB_PORT'),
    }
}


# Password validation
# https://docs.djangoproject.com/en/3.0/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/3.0/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.0/howto/static-files/

STATIC_URL = '/static/'

server DockerFile

FROM python:3
ENV PYTHONUNBUFFERED=1
WORKDIR /code
COPY requirements.txt /code/
RUN pip install -r requirements.txt
COPY . /code/
EXPOSE 8000

client DockerFile

# Install dependencies only when needed
FROM node:alpine AS deps
# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
RUN apk add --no-cache libc6-compat
WORKDIR /app
COPY package*.json /app
RUN yarn install

ENV PORT 3000

# Copying source files
COPY . /app

# Building app
RUN npm run build
EXPOSE 3000

~~docker-compose.yml~~

version: "3.8"

services:
  db:  
    image: mysql:8
    restart: always
    environment:
      MYSQL_DATABASE: "web_db"
      MYSQL_USER: "user"
      MYSQL_PASSWORD: "123456"
      MYSQL_ROOT_PASSWORD: "123456"
    volumes:
      - ./db:/var/lib/mysql
    ports:
      - "3306:3306"
    
  web:
    build: ./server
    command:  >
      sh -c "
      python manage.py migrate &&
      python manage.py runserver 0.0.0.0:8000
      "
    volumes:
      - .:/server
    ports:
      - "8000:8000"
    depends_on:
      - db
  
  frontend:
    ports:
      - 3000:3000
    build: ./client 
    command: npm run dev
    volumes:
      - ./client:/usr/src/app
      - /usr/src/app/node_modules
      - /usr/src/app/.next

    depends_on:
      - web