docker: Switch to nginx in docker image (#2721)

Co-authored-by: Yaman Qalieh <ybq987@gmail.com>

docker-entrypoint.sh

@@ -32,9 +32,11 @@ done
 # If docker is run on network:service mode, no two containers can use port 80
 # To use this, start the container with the additional environment variable "HTTP_PORT"
 if [ ! -z ${HTTP_PORT} ]; then
-	sed -i "s/80/$HTTP_PORT/g" /etc/apache2/sites-available/000-default.conf /etc/apache2/ports.conf
+	sed -i "s/80/$HTTP_PORT/g" /etc/nginx/sites-enabled/default
 fi
 
+# nginx will daemonize
+nginx
 
-# Start apache
-apache2-foreground
+# php-fpm will not
+php-fpm