Dockerfile update

loadbalancer/Dockerfile

@@ -0,0 +1,12 @@
+# Use the standard Nginx image from Docker Hub
+FROM nginx
+# Copy the configuration file from the current directory and paste
+# it inside the container to use it as Nginx's default config.
+COPY nginx.conf /etc/nginx/nginx.conf
+# Port 8080 of the container will be exposed and then mapped to port
+# 8080 of our host machine via Compose. This way we'll be able to
+# access the server via localhost:8080 on our host.
+EXPOSE 80
+
+# Start Nginx when the container has provisioned.
+CMD ["nginx", "-g", "daemon off;"]