Application modernisation may be essential for your business operations to grow, scale and transform. Enhanced efficiencies and the benefits of modernisation will only come from the right business-centric approach and strategy from the outset.
What is Application Modernisation?
Application modernisation is the process of taking existing legacy applications and modernising their platform infrastructure, internal architecture, and/or features.
When we talk about application modernisation today, the discussion tends to focus on monolithic on-premises applications (often these are outdated and maintained using waterfall development processes). While these traditional development processes are too slow and complicated to iterate, the key is how these can be brought into cloud architecture and release patterns, namely microservices DevOps.
By tackling the monolith and breaking it down into microservices DevOps frameworks, you can increase the velocity of new feature deployments, enhance efficiencies and re-imagine existing workflows.
Application Modernisation essential for your business?
There are two traditional limiting issues from traditional IT, with the combination of these factors driving the desire to modernise monolithic applications.
Firstly they are difficult to update, and secondly they are difficult and expensive to scale.
Key Application Modernisation challenges
While the cost and complexity of updating monolithic applications is a key driver, these same factors can also prove key challenges and barriers impacting your approach to application modernisation.
What about a simple lift and shift approach?
Simply lifting and shifting all legacy applications to the cloud is difficult to justify. This is especially the case when you have already made a significant investment in on-premises infrastructure.
In addition to this, the true value of modernisation is found in restructuring the application to take better advantage of cloud models.
Why lift and shift when it doesn’t offer a strategic advantage?
The key to success
Take stock of your existing IT infrastructure. And most importantly question where you will get the most value from application modernisation. Evaluate how critical the application is to the customer experience and the future of your business.
Taking an inventory of what you have is arguably the most obvious place to start. Qualify each of these applications in terms of the difficulty and cost of modernisation, with the value of modernisation.
Those that are high value and low effort to modernise, will be a no-brainer. This is where you should begin your application modernisation project. The difficult decisions come with those that present significant challenges but would offer crucial value if modernised.
But remember, it doesn’t have to be an all-or-nothing strategy from the very beginning. The project can be done strategically and in stages. Learn more about your journey to the cloud.
Containers and Kubernetes
Containers and Kubernetes, once seen as a challenger to virtual machines (VMs) as a form of all-purpose compute in the cloud, are now viewed by many as a key enabler of hybrid cloud and application modernisation strategies.
Containerisation enables an application to be packaged in consistent, lightweight ways that they can run consistently across desktop, cloud, or on-premises environments. It involves encapsulating or packaging up software code and all its dependencies so that it can run uniformly and consistently on any infrastructure. The flexibility it offers is extremely beneficial when charting your path forward in the cloud.
Your developers can create and deploy applications faster and more securely. Often referred to as “lightweight” containers share the machine’s operating system kernel and don’t require the overhead of associating an operating system within each application. They are inherently smaller in capacity than a VM and require less start-up time. What this means is that far more containers can be run on the same compute capacity as a single VM. Higher server efficiencies will be found, therefore reducing server and licensing costs.
With containerisation, applications can be written once and can run anywhere, promising such benefits as fault isolation, ease of management and security for example.
Much of the acceleration of containerisation as a viable aspect of any application modernisation strategy has been enabled by the emergence of the open source Docker Engine. Docker enables developers to package applications easily into containers, making it easier, simpler and safer to build, deploy and manage containers. The best way to think of Docker is as a toolkit to enable your developers to build, deploy, run, update and stop containers using simple commands and essential automation.
As industry experts, DeeperThanBlue provides a full consultative model for your application modernisation journey. We have access to a full market range of cloud environments to suit the specific needs and requirements of your business. If you’re keen to lean more, please get in touch today.
+44 (0)114 399 2820