Cloud Computing Architecture Front End & Back End

 This article would be covering up the concept of “Cloud Computing Architecture”, so today we would be covering why we require cloud computing, what is cloud computing technology, what are the benefits of cloud computing, and the two main architecture pillars of cloud computing.

 Along with that and the components of cloud computing technology, now why do we require cloud computing. Let's look into it, so earlier what was happening before the cloud computing technology. The organizations were facing some challenges, challenges in terms of on-trim infrastructure. So on prim infrastructure on prim set up is expensive; it is less scalable because you have already procured the infrastructure so the scalability becomes lower. Along with that, they require a lot of huge space for the servers if in case you have lost data on-prem it becomes difficult to recover them.

Along with that, it takes long deployment times apart from that the other challenges were the lack of flexibility, poor data security, less collaboration with the inter infrastructure, and the data cannot be accessed remotely, though the data can be accessed remotely there were some challenges in terms of the security. Now all these challenges were overcome when cloud computing technology was introduced.

So before cloud computing managing files on local storage was also difficult but with the introduction of cloud computing what we caught we saw that there is no server space required so nothing needs to be set up in the on-prem infrastructure. No, exposure is required for hardware and software maintenance because that would be done by the cloud computing vendor itself, it gave better data security, and the disaster recovery setup is fantastic in terms of the cloud computing technology.

Along with that ease of deployment, the deployment activities become easier in terms of setting up on the cloud computing platforms. It is cost-effective you pay-as-you-go there are on-demand services, management of services is easy as well as collaboration is also efficient. So cloud computing is generally better than the on-prem infrastructure because of so many advantages it has. Now we have seen the advantages of cloud computing and why organizations opted for cloud computing but what is the cloud computing technology is. So cloud computing is the delivery of on-demand resources so anything you need that is available so such as servers, databases, and software and is accessible over the internet such that a computer or desktop can access any service over the Internet.

So it's related to the server database and the software. It also gives the ability to build design and manage applications on the cloud platform now you just have to note that the company that is offering these computing services is called a “Cloud provider”. So like AWS, Google Cloud is all the cloud providers the cloud computing service providers are called the “Vendors” they provide services to manage the applications through a global infrastructure or a global network. Some of the examples I mentioned are AWS, Microsoft Azure as well as Google cloud. So these are the three primary cloud providers in the market.

Let's look into what are the benefits of using cloud computing. It is easily upgraded sometimes the upgrades are managed by the vendor itself so there are no hassles in terms of doing the upgrades, it is cost-efficient since these are on-demand services so you pay as you use or you pay as you go, and the scalability is some is almost you can say unlimited depends on the setup or the infrastructure of a cloud vendor, and you can scale as much as you require, and it provides you a lot of services where you can do the automation. So you can create your applications and you can automate them.

You can even deploy your application using automation it is highly available the reason is that they have a redundant infrastructure so you can create or deploy your applications which will be highly available. Flexible, so you can shift between the services you can shift between the infrastructures whenever you need. Along with that, it gives you a better security in terms of managing your applications along with the databases, and you can do the customization as per your requirement.

Now let's understand what we mean by cloud computing architecture. The above diagram represents the cloud computing architecture where you can see there is a cloud infrastructure, which we call a front-end means the infrastructure that is network-facing is internet-facing and the back-end is where the application the services, and the devices are like storage servers and all along with the management and the security portals.

So, primarily the cloud computing architecture has two components one is the front end and the other one is the back end. Now concerning the architecture and cloud computing architecture as we discussed earlier is divided into two parts front end and the back end. It provides applications and interfaces that are required for cloud-based services. So, the front end would be anything that is facing the internet, for example, the websites that you deploy are front-end because they are accessed by the public over the public network. These applications are such as web browser Google Chrome and Internet Explorer over which you can basically open up your web applications your websites and also it includes client and mobile devices along with some API. So, this is concerning the front-end architecture now let's look into the furthermore concepts related to the front end so in the front-end the cloud infrastructure consists of hardware and software components that include a data storage server virtualization software, etc. Also, it provides the GUI we call a graphical user interface to the end-users so that they can perform the respective tasks it's GUI-based access, and for those who are not from the coding background or they don't have familiarity with the CLI it is an advantage.

Now let's understand the back-end architecture, so the backend is it manages all the programs that run the application on the front end. So whatever is required to support the applications for example web applications which are running on a front-end would be available in the backend it has a larger number of data storage systems and servers so it is comprised of the entire infrastructure of a cloud provider and it can also be a software or it can be a platform as well. So based on the requirement the application provides output to the end-users in the back-end also it is one of the most important components in the cloud because it is you can say a backbone of a cloud computing architecture and its task is to provide utility in the architecture and the few services that are widely used among the end-users are storage application, development environments, and the web services.

In the backend concerning the storage, it maintains and manages any time amount of data over the Internet. Some examples of storage services on the cloud are “s3” which is called a “Simple storage service, Oracle cloud storage, and Microsoft Azure storage”. The storage capacity varies depending upon the service providers available in the market and also it allocates specific resources to a specific task it handles functions of the cloud environment. So this is concerning the management in the back-end architecture, the management in the backend architecture helps in the management of components like applications, tasks, service, security, and data storage in the cloud infrastructure, and in simple terms, it establishes coordination among the resources.

Coming to the security aspect of a back-end in architecture is an integral part of a crowd infrastructure because it mostly relies on storage and databases so it has to be more secure. It has some protection for cloud resources system files and the infrastructures; also it provides security to the cloud servers with virtual firewalls and results in the prevention of data loss. Now the different components of the cloud computing architecture are the hypervisor, the second is management software, the third one is deployment software, the fourth one is network, the fifth one is cloud server, and you have cloud storage.

Now let's look into what we have with the hypervisor, hypervisor, or as the name suggests it's a virtual operating platform that is used by every user. It runs a separate virtual machine on the back end which consists of software and hardware. Also, it maintains objective is the main objective is to divide and allocate resources so basically the hypervisor is primarily used to virtualize the physical machines so that they can be shared across many resources or many users.

The management software is responsibly used to manage and monitor the cloud operations so all the operational tasks are done by the management software. It helps in improving the performance of the cloud since you can do the admin tasks as well, for example, high security, flexibility, full-time access, and access given to other users who would be working on the cloud platform. The deployment software consists of all the mandatory installations and configurations that are required to run a cloud service, every deployment of cloud service is performed using our deployment software so it is primarily used for deploying the applications or software so which saves the time of a developer in terms of deploying their course.

Now the three different models which can be deployed are “SaaS (Software As A Service)” which means it hosts the software and manages the application of the end-user. An example is Gmail, so Gmail is an example of SAS service where it acts as a mailing service and the users just have to create their email accounts and start using the service.

The “(PaaS) Platform as a service” is a platform as a service and it helps to develop and build and deploy the applications on the software primarily used by the coders and they can concentrate more on their development activities and less focus on the infrastructure part, an example is Microsoft Azure.

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