feat: added support for Podman as container engine

.gitattributes

@@ -1,4 +1,5 @@
 # Treat SVGs like images, and not like text.
 *.svg       binary
 Dockerfile  text eol=lf
+Podmanfile  text eol=lf
 *.sh        eol=lf

Podmanfile

@@ -0,0 +1,39 @@
+# syntax=docker/dockerfile:1
+
+ARG BUILDER_CONFIGURATION="release"
+FROM docker.io/library/php:7.4-apache@sha256:c9d7e608f73832673479770d66aacc8100011ec751d1905ff63fae3fe2e0ca6d AS composer-builder
+
+# Install Zip to use composer
+RUN apt-get update && apt-get install -y \
+    zlib1g-dev \
+    libzip-dev \
+    unzip
+RUN docker-php-ext-install zip
+
+# Install and update composer
+COPY --from=docker.io/library/composer /usr/bin/composer /usr/bin/composer
+RUN composer self-update
+
+WORKDIR /composer
+COPY composer.* /composer/
+# Consume the build argment
+ARG BUILDER_CONFIGURATION
+RUN if [ "$BUILDER_CONFIGURATION" = "debug" ]; then \
+      # composer install --dev deprecated
+      COMPOSER_NO_DEV=0 composer install ; \
+    else \
+      COMPOSER_NO_DEV=1 composer install ; \
+    fi
+
+USER www-data
+
+# Site
+FROM docker.io/library/php:7.4-apache@sha256:c9d7e608f73832673479770d66aacc8100011ec751d1905ff63fae3fe2e0ca6d
+COPY resources/keyman-site.conf /etc/apache2/conf-available/
+RUN cp /usr/local/etc/php/php.ini-production /usr/local/etc/php/php.ini
+RUN chown -R www-data:www-data /var/www/html/
+
+COPY --from=composer-builder /composer/vendor /var/www/vendor
+RUN a2enmod rewrite headers; a2enconf keyman-site
+
+# RUN echo LogLevel alert rewrite:trace6 >> /etc/apache2/apache2.conf