Learned that services are only running within the Docker build layer they are started in it seems...

Dockerfile

@@ -13,10 +13,6 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-ins
     && rm -rf /var/www/html \
     && rm /etc/nginx/sites-enabled/default
 
-# Start services
-RUN service mysql start \
-    && service php7.2-fpm start
-
 # Copying in nginx configuration
 COPY /etc/ /etc/
 
@@ -34,9 +30,6 @@ COPY /entrypoint.sh /
 COPY /var/www/ /var/www/
 RUN chown -R www-data:www-data /var/www
 
-# Setting up the database tables
-#RUN mysql -u root friendbook < initialization.sql
-
 # Expose Insecure Web, MySQL Server
 EXPOSE 80
 CMD ["/bin/sh", "/entrypoint.sh"]

entrypoint.sh

@@ -1,4 +1,10 @@
 #!/bin/sh
 
+echo "[ INFO ] Starting MySQL Server"
+service mysql start
+
+echo "[ INFO ] Starting PHP 7.2 Service"
+service php7.2-fpm start
+
 echo "[ INFO ] Starting nginx"
 nginx -g "daemon off;" # Foreground