Update Dockerfile to revert to PHP 7.0 and adjust Debian repository sources

Dockerfile

@@ -1,14 +1,18 @@
-# Use PHP 7.3 with Apache (compatible with Laravel 5.0)
+# Use PHP 7.0 with Apache (has native mcrypt support for Laravel 5.0)
-FROM php:7.3-apache
+FROM php:7.0-apache
+
+# Update to use archived Debian repositories
+RUN sed -i 's|deb.debian.org|archive.debian.org|g' /etc/apt/sources.list \
+    && sed -i 's|security.debian.org|archive.debian.org|g' /etc/apt/sources.list \
+    && sed -i '/stretch-updates/d' /etc/apt/sources.list
 
 # Install system dependencies
-RUN apt-get update && apt-get install -y \
+RUN apt-get update && apt-get install -y --allow-unauthenticated \
     git \
     curl \
     libpng-dev \
-    libonig-dev \
     libxml2-dev \
-    libzip-dev \
+    libmcrypt-dev \
     zip \
     unzip \
     libfreetype6-dev \
@@ -17,13 +21,8 @@ RUN apt-get update && apt-get install -y \
     && docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ \
     && docker-php-ext-install -j$(nproc) gd
 
-# Install PHP extensions
+# Install PHP extensions (mcrypt is built-in for PHP 7.0)
-RUN docker-php-ext-install pdo_mysql mbstring exif pcntl bcmath zip tokenizer
+RUN docker-php-ext-install pdo_mysql mbstring exif pcntl bcmath mcrypt tokenizer zip
-
-# Install mcrypt via PECL (required for Laravel 5.0)
-RUN apt-get install -y libmcrypt-dev \
-    && pecl install mcrypt-1.0.4 \
-    && docker-php-ext-enable mcrypt
 
 # Enable Apache mod_rewrite
 RUN a2enmod rewrite