Laravel docker image unable to change permission to /var/www/storage/logs/ always is root owner

I have the next Dockerfile:

FROM php:8.1.0-fpm
# Set working directory
WORKDIR /var/www
# Add docker php ext repo
ADD https://github.com/mlocati/docker-php-extension-installer/releases/latest/download/install-php-extensions /usr/local/bin/
# Install php extensions
RUN chmod +x /usr/local/bin/install-php-extensions && sync && \
install-php-extensions mbstring pdo_mysql zip exif pcntl gd memcached
# Install dependencies
RUN apt-get update && apt-get install -y \
build-essential \
libpng-dev \
libjpeg62-turbo-dev \
libfreetype6-dev \
locales \
zip \
jpegoptim optipng pngquant gifsicle \
unzip \
git \
curl \
lua-zlib-dev \
libmemcached-dev \
nginx
# Install supervisor
RUN apt-get install -y supervisor
# Install composer
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer
# Clear cache
RUN apt-get clean && rm -rf /var/lib/apt/lists/*
# Add user for laravel application
RUN groupadd -g 1000 www
RUN useradd -u 1000 -ms /bin/bash -g www www
# Copy code to /var/www
COPY --chown=www:www-data . /var/www
# add root to www group
RUN chmod -R ug+w /var/www/storage
# Copy nginx/php/supervisor configs
RUN cp docker/supervisor.conf /etc/supervisord.conf
RUN cp docker/php.ini /usr/local/etc/php/conf.d/app.ini
RUN cp docker/nginx.conf /etc/nginx/sites-enabled/default
# PHP Error Log Files
RUN mkdir /var/log/php
RUN touch /var/log/php/errors.log && chmod 777 /var/log/php/errors.log
# Deployment steps
RUN composer update
RUN composer install --optimize-autoloader --no-dev
RUN chmod +x /var/www/docker/run.sh
EXPOSE 80
ENTRYPOINT ["/var/www/docker/run.sh"]

and this is always adding root permission to the /var/www/storage/logs directory.

Here all seems to be ok, but when I did ls -l !Surprise! the logs/laravel.log file has root permission:

And when I tried do login by using postman here is the error:

<!-- The stream or file "/var/www/storage/logs/laravel.log" could not be opened in append mode: Failed to open stream: Permission denied
The exception occurred while attempting to log: The stream or file "/var/www/storage/logs/laravel.log" could not be opened in append mode: Failed to open stream: Permission denied

I don't know what to do to prevent this problem guys, if you have any idea to fix this problem I will appreciate it.

I have tried to add it:

sudo chmod -R ugo+rw storage

But the logs/laravel.log file always has root permission. Why happens it?

thanks so much.

Seems like you forgot to change user to www before starting the app, and Laravel is creating all files under root

# Here it goes
USER www
# Deployment steps
RUN composer update
RUN composer install --optimize-autoloader --no-dev
RUN chmod +x /var/www/docker/run.sh