refactor: move Drupal into a subdirectory

Dockerfile

@@ -0,0 +1,52 @@
+ARG PHP_VERSION=8.1
+
+FROM php:${PHP_VERSION}-fpm-bullseye AS base
+
+###
+
+FROM base AS build
+
+ENV PATH=${PATH}:/var/www/html/vendor/bin
+
+COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
+
+WORKDIR /var/www/html
+
+RUN useradd --create-home app \
+  && chown app:app -R /var/www/html \
+  && apt-get update -yqq \
+  && apt-get install -yqq \
+    git \
+    libpng-dev \
+    mariadb-client \
+    unzip \
+  && rm -fr /var/lib/apt/lists/* \
+  && pecl install xdebug \
+  && docker-php-ext-install \
+    gd \
+    opcache \
+    pdo_mysql \
+  && docker-php-ext-enable \
+    xdebug
+
+COPY tools/docker/images/php/root /
+
+COPY --chown=app:app composer.* ./
+
+USER app
+RUN composer install --no-dev --prefer-dist --optimize-autoloader
+
+COPY --chown=app:app . .
+
+###
+
+FROM build AS test
+
+# RUN composer install \
+#   && phpunit
+
+###
+
+FROM build AS production
+
+RUN composer install --no-dev --prefer-dist --optimize-autoloader