statistics docker setup, cleanup on sync script, added supervisord

docker/statistics/Dockerfile

@@ -1,23 +1,34 @@
 FROM php:cli
 
-# Install required dependencies
-RUN apt-get update && apt-get install -y cron unzip curl && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y \
+    cron \
+    unzip \
+    curl \
+    libpng-dev \
+    libjpeg-dev \
+    supervisor \
+    && pecl install redis \
+    && docker-php-ext-install pdo pdo_mysql gd \
+    && docker-php-ext-enable redis \
+    && rm -rf /var/lib/apt/lists/*
 
-RUN docker-php-ext-install pdo pdo_mysql
+RUN curl -sS https://getcomposer.org/installer | \
+    php -- --install-dir=/usr/local/bin --filename=composer
 
-RUN apt-get update && apt-get install -y libpng-dev libjpeg-dev \
-    && pecl install redis && docker-php-ext-enable redis
-
-# Copy the cron job script
 WORKDIR /app
-COPY fetch_and_send.php /app/fetch_and_send.php
+
+# install composer dependencies
+COPY . .
+
+RUN composer install
+
 COPY crontab /etc/cron.d/crontab
-RUN chmod +x /app/fetch_and_send.php
 
-# Give execution rights on the cron job file
-RUN chmod 0644 /etc/cron.d/crontab && crontab /etc/cron.d/crontab
+COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf
 
-RUN touch /var/log/cron.log && touch /app/statistics.log
+RUN chmod 0644 /etc/cron.d/crontab \
+    && crontab /etc/cron.d/crontab \
+    && touch /var/log/cron.log /app/sync.log \
+    && chmod +x /app/sync.php
 
-# Start cron in the foreground
-CMD ["cron", "-f"]
+CMD ["supervisord", "-c", "/etc/supervisor/conf.d/supervisord.conf"]