{"id":838,"date":"2016-07-25T08:00:31","date_gmt":"2016-07-25T06:00:31","guid":{"rendered":"https:\/\/blog.mi.hdm-stuttgart.de\/?p=838"},"modified":"2023-06-07T15:10:53","modified_gmt":"2023-06-07T13:10:53","slug":"socialcloud-cloudy-this-morning-and-were-scaling-part-5","status":"publish","type":"post","link":"https:\/\/blog.mi.hdm-stuttgart.de\/index.php\/2016\/07\/25\/socialcloud-cloudy-this-morning-and-were-scaling-part-5\/","title":{"rendered":"SocialCloud \u2013 Cloudy this morning … and we\u2019re scaling \u2013 Part 5"},"content":{"rendered":"

Cloud computing has so much potential that the possibilities seem to be endless. Without knowing much about it the cloud looks like a magic place for many people.<\/p>\n

\"Cloud<\/a>
Source: cloudtweaks.com<\/figcaption><\/figure>\n

To give you a more detailed explanation we sum up the design process of our cloud application step by step in the following blog post. Without giving too much away, it can be said that we still put our trousers on one leg at a time ;-).<\/p>\n

<\/p>\n

Infrastructure Design – Step by Step<\/h2>\n

The following blog post gives you an impression how we designed and launched a web application using the cloud provider Bluemix. We tried to focus on a web application independent from a specific software implementation. Of course you can\u2019t keep this level of abstraction during the implementation process but for now a more abstract point of view is sufficient while designing the application.<\/p>\n

First of all we created our local development environment. In web development it\u2019s state of the art to use a MVC architecture<\/a> to build an application. For now it\u2019s enough to consider that there will be a model realized by a database service like MySQL and a business logic realized by using a script language like PHP. The business logic also creates views delivered to the user.<\/p>\n

On our local development environment we have very limited resources so it\u2019s quite common to run everything on one webserver like nginx or Apache.<\/p>\n

\"SocialCloud<\/a>
Scaling – Step 1<\/figcaption><\/figure>\n

For some reasons it can make sense to \u201ephysically\u201c separate the business logic (controller) from the database (model). So the infrastructure will look more like this:<\/p>\n

\"SocialCloud<\/a>
Scaling – Step 2<\/figcaption><\/figure>\n

On the left a server is running the business logic connecting to a host on the right providing some database functionalities. E.g. for loading any kind of user data like credentials for login, user posts and so on. At this point you may say no big deal and you\u2019re absolutely right. But this simple separation lays the foundation for later horizontal scaling. To point this out we give you a brief overview about scaling.<\/p>\n

In general there are two ways to scale an application:<\/p>\n