Added Docker stuff.

Dockerfile

@@ -0,0 +1,15 @@
+FROM php:7.2-apache
+
+# Use the default production configuration.
+RUN mv "$PHP_INI_DIR/php.ini-production" "$PHP_INI_DIR/php.ini"
+
+RUN docker-php-ext-install mysqli
+
+# Enable rewrite module for httpd.
+RUN ln -s /etc/apache2/mods-available/rewrite.load /etc/apache2/mods-enabled/rewrite.load
+
+ADD sna /var/www/html
+
+# Set 20M body size limit and enable short open tags in PHP
+RUN sed -i "s/<VirtualHost \*:80>/<VirtualHost \*:80>\n\tLimitRequestBody 20480000\n/" /etc/apache2/sites-enabled/000-default.conf && \
+    sed -i "s/short_open_tag = Off/short_open_tag = On/" $PHP_INI_DIR/php.ini