Hi! Jump user here for some time and I'm moving to docker. Loving the simplicity.
I'm trying to follow security measures and I start the container as a non root user, using in the dockerfile user: "${UID}:${GID}". (same as using flag --user)

But doing so, it throws the following errors

cp: can't create '/var/www/html/./background-css.php': Permission denied
cp: can't create directory '/var/www/html/./cli': Permission denied
cp: can't create directory '/var/www/html/./assets': Permission denied
cp: can't create '/var/www/html/./.jump-version': Permission denied
cp: can't create '/var/www/html/./custom-width-css.php': Permission denied
cp: can't create '/var/www/html/./index.php': Permission denied
cp: can't create '/var/www/html/./config.php': Permission denied
cp: can't create directory '/var/www/html/./classes': Permission denied
cp: can't create directory '/var/www/html/./search': Permission denied
cp: can't create directory '/var/www/html/./vendor': Permission denied
cp: can't create directory '/var/www/html/./translations': Permission denied
cp: can't create '/var/www/html/./composer.lock': Permission denied
cp: can't create directory '/var/www/html/./templates': Permission denied
cp: can't create '/var/www/html/./composer.json': Permission denied
cp: can't create directory '/var/www/html/./sites': Permission denied

Any way of changing users? Will you consider this change?