How to run Laravel application inside Docker?

Hello, folks! I'm struggling with this for days now. I tried different approaches but no success. I get /var/www/vendor does not exist and could not be created: failed to solve: process "/bin/sh -c composer install --no-interaction --no-dev --optimize-autoloader" did not complete successfully: exit code: 1.

docker-compose.yml

services:
  app:
    build:
      context: .
      dockerfile: Dockerfile
    image: my-laravel-app
    container_name: my-laravel-app
    restart: unless-stopped
    working_dir: /var/www
    volumes:
      - ./:/var/www
      - ./.env:/var/www/.env
    environment:
      - APP_ENV=local
    networks:
      - app-network

  nginx:
    image: nginx:alpine
    container_name: my-nginx
    ports:
      - "8000:80"
      - "${VITE_PORT:-5173}:${VITE_PORT:-5173}"
    volumes:
      - ./:/var/www
      - ./nginx.conf:/etc/nginx/conf.d/default.conf:ro
      - ./docker/php/local.ini:/usr/local/etc/php/conf.d/local.ini
    depends_on:
      - app
    networks:
      - app-network        

  node:
    platform: linux/arm64/v8
    build:
      context: .
      dockerfile: Dockerfile.node
    image: my-laravel-node
    container_name: my-laravel-node
    ports:
      - "3000:3000"
    restart: unless-stopped
    working_dir: /var/www
    volumes:
      - ./:/var/www
      - /var/www/node_modules
    networks:
      - app-network

  db:
    platform: linux/x86_64
    image: mysql:8.0
    container_name: my-mysql
    restart: unless-stopped
    environment:
      MYSQL_DATABASE: ${DB_DATABASE}
      MYSQL_ROOT_PASSWORD: ${DB_PASSWORD}
      MYSQL_PASSWORD: ${DB_PASSWORD}
      MYSQL_USER: ${DB_USERNAME}
    volumes:
      - dbdata:/var/lib/mysql  
    networks:
      - app-network
    ports:
      - "3306:3306"

networks:
  app-network:
    driver: bridge

volumes:
  dbdata:
    driver: local

Dockerfile

# Set the base image for subsequent instructions
FROM php:8.2-fpm

# Install dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    libpng-dev \
    libonig-dev \
    libxml2-dev \
    zip \
    curl \
    unzip \
    git \
    libzip-dev \
    libfreetype6-dev \
    libjpeg62-turbo-dev \
    default-mysql-client \
    libpng-dev && \
    docker-php-ext-install pdo_mysql mbstring exif pcntl bcmath gd zip

# Clear cache
RUN apt-get clean && rm -rf /var/lib/apt/lists/*

# Install Composer
COPY --from=composer:latest /usr/bin/composer /usr/bin/composer

# Set working directory
WORKDIR /var/www

# Remove default server definition
RUN rm -rf /var/www/html

# Copy existing application directory and set correct permissions
COPY --chown=www-data:www-data . /var/www

# Ensure necessary permissions
RUN chmod -R 777 storage bootstrap/cache

# Change current user to www-data
USER www-data

RUN composer install --no-interaction --no-dev --optimize-autoloader

# Expose port 9000
EXPOSE 9000

# Start PHP-FPM and run migrations on container startup
CMD php artisan key:generate && php artisan migrate --force && php-fpm

Dockerfile.node

# Set the base image
FROM node:20

# Set working directory
WORKDIR /var/www

# Copy `package.json` and `package-lock.json`
COPY package*.json ./

# Install project dependencies
RUN npm install

# Copy project files into the docker image
COPY . .

# Expose the port Vite runs on
EXPOSE 3000

# Start the Vite server
CMD ["npm", "run", "dev"]