Re-architecting Applications To Cloud — A Legit Modernization Path?

Shifting to the cloud is a significant infrastructure transition for any business. Switching to the cloud means transferring the existing data and applications in their entirety to the T. You have plenty of choices as to how and when you want to transfer the applications. It could be via re-architecting and leveraging cloud-native capacity, re-hosting using the lift-and-shift method where an application in its current state is moved to the new hardware, or re-platforming where partly re-architecting and partly lift-and-shift methodology is used.

Data or files can be transferred via wire or through a storage device being shipped to the cloud provider.

Today, a lot of businesses swear by the process of re-architecting applications. They find this an effective way of modernizing applications.

Let us get to the basics and then understand the benefits of re-architecting applications.

What does Rearchitecting Application mean?

Rearchitecting of applications is a process where dated monolithic applications are modernized or reconstructed based on current microservices architecture.

Old technologies are discarded, and recent versions are implemented. Rehosting of data from an on-premises server to a cloud server is done. Sometimes third-party plugins and tools are replaced with free-to-use ones.

Rearchitecting sounds exciting and is groundbreaking, no doubt. It also requires a considerable investment of time to make any application, a “cloud-native” in the true sense, and accomplish utmost business benefits from the cloud. This transformation to the cloud might take weeks or months depending on the complexity of the application and goals of the businesses.

Re-Architecting Applications Benefits

1. Cost-Effective

Businesses want to move their applications to the cloud to minimize the excessive cost of traditional IT infrastructure. Large applications while running on legacy hardware infrastructures are not as scalable as in the cloud.

Cloud Virtual Machines (VMs) are economical compared to hardware server, or virtual machine run on-premises. Since most of the businesses use the pay-per-use model, costing becomes much lower.

2. Achieve Agility with the Cloud

Cloud-native applications are made of small, tested, and managed microservices. They function independently as packages. They are easy and safe to manage as compared to a colossal code. It minimizes risk and improves productivity.

As productivity improves, cloud applications become simpler to manage, agility is amplified and enabled through new DevOps processes with the help of CI/CD (Continuous Integration and Continuous Delivery).

These processes involve additional development, testing and deployment, automation, and release cycles — that is faster than ever before. This cloud agility makes room for innovation and experimentation to enhance customer experience. With the flexible cloud-native application, A/B testing of new features or new versions, the release cycles are made simpler and easier.

3. Gain Application Resilience

Monolithic applications are not known to handle failures and issues competently. Any trouble in any part of the application has a huge impact on the performance of the entire application.

With cloud-native, fault tolerance is built into each microservice. The benefit of this method is, even if a single server is faulty, the adjacent services function normally. The user experience might be interrupted to an extent, but it doesn’t make the entire application unserviceable.

In extreme cases like failed host, a backup instance can be replicated in the cloud rather than getting new hardware.

Today, vendors are offering services to multiple regions. You can get the best service and mitigate the issues sooner.

4. Enable Flexibility

The best thing about moving to the cloud is, the cloud platforms are flexible in scaling up during peak traffic hours and scaling down during low activity times. They help in performance testing and data crunching.

Currently, vendors provide automation services like Azure Resource Manager, where you can create templates of resource creation and replicate the same configuration on multiple places using a single command. This will help us to be prepared for resource creation and scale-out when needed.

With Serverless computing platforms like Azure Functions, you can scale to additional instances without provisioning. Provisioning happens back-end where required resources are defined, your code executes automatically when called-in.

5. Do Not Trade-off Monitoring and Security

When applications are scaled especially in cloud-native applications, it becomes tough to manage and monitoring and security are compromised at times.

Instead of relying on a single monitoring tool, you need to opt for a combination of third-party tools like Azure monitor, PagerDuty, or open-source tools like Prometheus.

Opting for vendors who provide encryption services and open-source software where policy-based security is built-in should be enabled.

Additional benefits of rearchitecting to cloud-native are:

  • Minimizing data center costs.
  • Entitled proprietary software licenses.

Conclusion

It becomes tough to understand the advantages of cloud computing if you are planning to migrate applications as it is in the present condition. Instead rearchitecting your application is the best practice to follow. Rearchitecting applications to the cloud is an efficient way to modernize the core infrastructure of the app and achieve substantial benefits.

Tell us what you think about re-architecture and any hiccups you faced otherwise. We are all ears.

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