What we know.

Software Teams developed a huge amount of applications supporting the business during the last 10 years. All these applications address businesses needs. All these applications are also mature enough to fit market demands, but business pushes to migrate software from VPS to the cloud running it more efficiently.

What does the business expect from their application in a cloud? Our experience says the main drivers are:

• Service availability that means autoscaling and load balancing,
• Cost of Ownership reduction by shifting hardware costs & maintenance duties to a cloud provider,
• Operational costs reduction by paying just for utilized capacities: memory, processors, storage, networks, and even power consumption.

It sounds reasonable, but in 2 cases from 5, if you moved your application to the cloud as-is, you would get surprised by huge bills from the cloud providers.

Nobody likes surprises.

The fact is the big part of the last decade software created as a monolith solution. It was a quick, reliable and cost-effective approach 5-10 years ago to create Applications running all business-logic as a part of the database routines as the main value was business-data storing and processing. So, there is only way to move such an application to the cloud deploying it to the single virtual machine. It is exactly what I mean talking about the wrong approach to use the cloud. It will serve your Consumers, but you can just pay more and more looking increase in resource utilization.

The Solution.

The Cloud offers a completely different approach to run software services as a set of connected sub-services each of them can run in a separate environment and create new instances of over-loaded subsystems and shut them down once workload goes down. That is why you need a cloud readiness assessment before moving your application to the cloud. The DevOps is the best engineer who can do it quickly suggesting proper application modernization roadmap and its execution enabling cloud availability, security, and cost-effectiveness.