Application Modernisation

WHAT IS APP MODERNISATION?

The practice of app modernisation refers to the refactoring, and/or replatforming of software to take advantage of modern languages, patterns, and technologies. When discussing in the context of the Cloud, this typically means looking at updating applications to be Cloud Native. For example, consider a standard 3 tier web LAMP app. This can be lifted and shifted directly into AWS using EC2. However, in order to realize the true potential of AWS there are a number of activities that should be explored, such as:

Replacing the database with an AWS hosted option, such as RDS.
Building a CI/CD pipeline using CodeBuild, CodeDeploy, and CodePipeline.
Configuring an Auto Scaling Group and using putting it behind an Elastic Load Balancer.
Identifying areas of code that may be candidates for splitting into a separate service, and containerising these, which can form the move towards a microservices based model, if appropriate.

Like many areas of software, app modernisation is best seen as a journey, rather than something that occurs overnight. Asystec has experienced architects and engineers on hand to aid with every step.

DEVOPS

Whether you’re already deeply entrenched, or just beginning to think about how to establish a DevOps culture within your organisation, Asystec are here to help.

CI/CD

Just about every organisation both big and small are now practicing some form of Continuous Integration and Continuous Delivery. However, is there more to it than just Jenkins? Are your apps suitable for CI/CD, and if not, what are your options? We have experience with designing pipelines for both small and complex applications and would love to talk to you about your strategy and challenges in this area.

AUTOMATION

Automation is a central tenet of DevOps, and you can never have enough! Asystec have skills in generic infrastructure as code solutions such as Terraform and Ansible, but can also help with AWS Cloud formation and Microsoft Resource Manager.
Whether you have questions about infrastructure as code, configuration management, Ansible vs Chef, Terraform best practice, or just simply have legacy processes that could be improved via scripting, get in touch.

MORE

We are also here to help provide you with guidance and services in many other areas key to developing a solid DevOps strategy, such as: Operational best practices (Release engineering, software packaging, patching, deployment, etc.), Source control management (Foundational and advanced Git, branching strategies, SVN migration, etc.) and Logging and monitoring (ELK stack, Cloudwatch, Grafana, etc.).

MICROSERVICES

Many organisations are seeing rapid productivity gains by moving towards a microservices based architecture (https://kubernetes.io/case-studies/). However, microservices can bring additional complexities that need to be managed, such as:

  • How best to containerise my application
  • What source image should I use, how do we know its secure?
  • What orchestration platform best suits my needs, VMware Tanzu, AKS, EKS, Swarm?
  • What messaging patterns should I use between my services?
  • How can I monitor and observe these services?

Asystec engineers are ready to help answer these questions and help you along this part of your Cloud journey.

SERVERLESS

A very important piece of App Modernisation is Serverless computing. Serverless is an execution model where the cloud provider (e.g. AWS, Azure, or Google Cloud) is responsible for executing a piece of code by dynamically allocating the resources and only charging for the amount of resources and time used to execute the code.
The code is typically run inside stateless containers that can be triggered by a variety of events including HTTP requests, database events, queuing services, monitoring alerts, file uploads, scheduled events (cron jobs), etc. The code that is sent to the cloud provider for execution is usually in the form of a function. Hence serverless is sometimes referred to as “Functions as a Service” or “FaaS”.

On top of FaaS, Cloud providers also offer fully managed services that are also referred to as Serverless such as AWS API Gateway or AWS Fargate. These services allow the customer to benefit from the provided functionality while not having to manage any underlying infrastructure.

Using Serverless on your next project can bring many benefits, developers can be much more agile as no infrastructure provisioning is necessary, IT Managers don’t have to worry about scalability levels or resiliency and Business Stakeholders appreciate the faster than ever lower Time-to-market and lower costs.

CONTACT US

To leverage all the possibilities and cost-saving opportunities that come with the cloud adoption it’s necessary to adapt your workloads and development approach to the new services and resources available. Asystec can help your team develop cloud-native modern applications.