Cloud computation has led to a rapid acceleration in the growth of a company or business. This makes cloud migration pivotal for most of the organizations willing to manage the growth and stay ahead of the competition.
However, the migration of legacy applications or software systems to the cloud platform is a challenging task for most of the business organizations. Legacy business apps encompass both in-house developed bespoke applications and well-known applications personalized to meet the unique needs of the organization.
To resolve the problem, we have shared simple and easy steps, by which you can make legacy applications ready to operate on the cloud.
1. Understand the Operational Characteristics of Legacy Apps
Before you should move your legacy applications to the cloud, you should consider the procedures followed by the respective apps to adapt to the existing cloud infrastructure. You should make sure that your apps streamline to achieve the highest possible efficiency.
Simultaneously, the apps should reduce the required data retention procedure. You have to keep in mind that an easy to move application may not necessarily become cloud-ready. To avoid any problem, you have to understand the app’s operational characteristics before making any move.
2. Conduct a Detailed Software Audit
Along with understanding the operational characteristics of legacy applications, you should understand the performance of your business not only before but also at the time of and after you complete the cloud transition process. For this, you should prepare a comprehensive list of on-premise applications and infrastructure of your business.
You should evaluate the status of each of your applications. Accordingly, you should identify whether the app is a cloud-friendly one or needs refactoring to fit into a cloud environment. In some cases, you will find a higher migration effort as compared to its output value. Whenever you conduct a software audit, you should uncover the platforms and applications, which no longer have any good business value while retiring your redundant apps.
Other than this, you should perform an analysis mapping of your available legacy business applications. This step identifies the systems, which you may combine, and the ones, which you cannot move to another place. When you identify dependencies and act accordingly, you will expect to reduce disruption in the underlying process.
3. Focus On Your Microservices Options
Once you map your networked data dependencies, application, and topology, you have to decide the cloud requirements to assess the options related to cloud service adequately. For this, you have to consider the following things-
- Whether you need servers, databases, operating system, or test plans
- Your CPU, memory, network, and storage requirements
- The sensitivity of your migrated information or security
- Whether you need to access data on a secured connection or public internet
- Cloud computation cost according to your application
- The type of your offered services and the specific nature of your operational sector
- Choose for end-to-end encryption or role-based access and authentication
- Look for the most beneficial cloud platform, like SaaS, PaaS, or IaaS.
4. Modularize the Monolithic Application Architecture Well
Successful migration of legacy apps mandates you to modularize the monolithic application architecture so that they become easily usable with native cloud solutions. A few of the applications require only a lift and shift approach while others require a re-architecture or refactoring process. To identify this, you have to observe the alignment of a cloud service hierarchy closely with all the applications, which you want to migrate, as specific apps work better on specific services.
5. Find Ways to Improve Automation and Orchestration Regularly
As you start adapting legacy applications to migrate to the cloud platform, you should regularly find ways to improve both automation and orchestration to achieve higher productivity and performance of your IT team. You should also automate the development by containerizing your existing coding process with the deployment. When you automate tedious tasks, you will expect faster operation and development related to your upcoming cloud migration projects.
6. Develop a Phased Migration Plan
When you trial any legacy application in an entirely new ecosystem, you should work in iterations to avoid wrong ideas or flawed codes. One of the sensible methods to conduct a legacy migration is to accomplish it incrementally. This assures minimum possible disruption to the business operations and continuity. You should assess the changes required in the internal procedures and later, identify changes in your technology-related responsibilities. You should start the migration process based on system components and later on with the user groups to plan your business events effectively.
By following a strategic approach and close alignment of your legacy apps and business, you may easily map out an effective migration strategy to make legacy apps cloud-ready.
Martin Moyers is a business analyst and an avid tech blogger who is associated with Zymr, Inc. He is obsessed with AI-ML, cloud technologies, and the universe of social media. In his leisure time, he enjoys rafting, sailing, and hiking.