Cut Legacy Modernization Costs by 60% Using BuildPiper’s Microservices Delivery

1. Application Modernization WHITE PAPER github.com/opstree @opstree-devops linkedin.com/company/opstree

2. Scope of this WhitePaper With Microservices and Kubernetes dominating the industry today, most enterprises are slowly but steadily migrating towards it. Businesses are opting for cloud migration and app modernization for improved agility, enhanced resilience, better scalability and faster time to market. Discover what application modernization is, the benefits, its challenges, how to get started with app modernization and explore how BuildPiper- a comprehensive Microservices DevSecOps platform can help enterprises on their app modernization journey Here, in this whitepaper, we’ll talk about, 1 2 3 4 5 6 7 What is Application Modernization? Why Modernize Legacy Applications? Challenges of Application Modernization Patterns of Application Modernization Microservices Deployment Methodology and BuildPiper’s Approach to App Modernization! Explore Before You Embrace! How BuildPiper Assists- A Comparative Study!

3. Application Modernization Application Modernization is the practice adopted by enterprises to update existing legacy applications by modernizing their frameworks, internal architectures, infrastructures and features. In simpler words, it is the process of updating older software with new upgraded languages, frameworks and platform infrastructures. This method is also known as legacy modernization or legacy application modernization. platform Most of the discussions happening around app modernization in the industry today are focused on monolithic and/ or on-premise applications which were earlier being updated and maintained using the waterfall development model. The app modernization approach anchors how existing applications can be migrated to cloud architecture and Microservices DevSecOps/DevOps improved app performance, easier scaling and greater business ROIs. Explore how BuildPiper can help accelerate your app modernization journey here! According to a research report, the Application modernization market size is expected to grow from USD 11.4 billion in 2020 to USD 24.8 billion by 2025, at a Compound Annual Growth Rate (CAGR) of 16.8% during the forecast period. patterns, for W H I T E P A P E R | b u i l d p i p e r . i o 1

4. Why Modernize Legacy Applications? Legacy applications are often monolithic applications that need to be upgraded. There are mainly two reasons why enterprises choose to modernize existing monolithic applications. Firstly, it is arduous to update them. Secondly, it is tough and expensive to scale these applications. Due to their complicated and intricate architectural patterns, updating monolithic applications is quite challenging. As all the components of the apps exist as interdependent entities, it becomes difficult to add new features. Additionally, updating monolithic applications is costly considering the overhead expenses of complexity and integration challenges. The components in a monolithic app co-exist as a single entity. If even a single component of the app has some load and performance challenges, it might become crucial to scale the entire app just to fix an issue in a single component of the application. By modernizing an application to a Microservices architecture, all the components of an app become smaller and loosely coupled. So, they can easily be deployed and scaled independently of each other making it easier to update and scale the whole app. Enterprises in modern times are embracing Microservices to digitize their products, processes, and business models. Out-of-the-box benefits of this style of architecture include improved scalability, faster time to market, reduced costs and much more! W H I T E P A P E R | b u i l d p i p e r . i o 2

5. Explore and know more about this state-of-the-art approach to application development through this eBook. Moreover, long development cycles, outdated use of technology, platforms and frameworks, obsolete features and high cost of maintenance are some of the reasons that call for modernization of enterprise applications. App Modernization is a must for enterprises that are going through the following bottlenecks. Take a look at these! W H I T E P A P E R | b u i l d p i p e r . i o 3

6. Challenges of Application Modernization The major challenges of application modernization that enterprises have to face typically boil down to cost and complexity. Moving an application from on-premises to the cloud without a planned strategy and proper consideration of the ROI can prove to be a futile attempt. On the other hand, there might be a scenario where a few applications can benefit from re-architecture and re-platform but they are so heavily coupled to existing systems that the complexity to modernize them may outweigh the benefits. According to a report by Gartner, around 90% of legacy applications would continue to serve business needs for many enterprises, with less than 10% moving ahead to modern platforms. The major reason for the trend is the lot of challenges that enterprises have to face during application modernization. Some of the major challenges of app modernization are shown here in the image below. W H I T E P A P E R | b u i l d p i p e r . i o 4

7. Time and cost can be a major challenge for enterprises willing to opt for the App Modernization process. Making desirable changes to the infrastructure & code of existing applications and adding new app features may charge a huge amount and demand too much time from the DevOps teams. Consider BuildPiper, a robust Microservices DevSecOps platform and explore its out-of-the-box functionalities for removing major roadblocks to app modernization. BuildPiper has a strong portfolio of providing cloud software and app modernization services thus helping industry-leading enterprises to achieve greater ROI and improved business agility. With the ability to reduce cost by 60 per cent as compared to manual grounds up for managing platform enhancements and optimization activities, BuildPiper enables faster time to market, Day 1 Readiness for production release, and provides deployment analytics & troubleshooting assistance for seamless manageability of Microservices at reduced cost and efforts. Learn and know more about the major challenges of deploying Kubernetes! Patterns of App Modernization The best approach to modernize existing legacy applications depends on the kind of problem that is to be solved. Whether there’s an issue in the infrastructure, platform, framework or features, it’s important for enterprises to choose the right technique to modernize applications targeting the main problem. Making a wrong choice can result in an out-an-out wastage of time & resources W H I T E P A P E R | b u i l d p i p e r . i o 5

8. There are a few popular approaches to application modernization that focuses on re- architecting and re-platforming the application without changing its architecture, migrating monolithic, on-premises applications to a cloud-native microservices architecture(refactoring), hosting the application as it is on new infrastructure such as cloud infrastructure( also known as rehosting) and exposing an application’s functionality via API. Let’s discuss some of these approaches to application modernization here. From Monolith to Microservices Refactoring and breaking down a monolithic application into a collection of small, loosely coupled microservices is the most common approach for application modernization being adopted by enterprises these days. Business organizations opt for this pattern to improve the speed of new feature delivery, enhance the app’s performance and scalability, expose the functionality for new use cases, and much more. W H I T E P A P E R | b u i l d p i p e r . i o 6

9. For instance, in the image shown above, a retail application was broken down from a single, n-tier application to a collection of microservices of all of the individual services co-existing in the monolithic application, each of them along with their individual database and data model. Strangler Pattern Another approach for app modernization is the “Strangler Pattern”. Instead of breaking down the whole monolithic application all at a time, the strangler pattern is all about taking smaller valuable functions from the modularised monolith application and then redesigning & developing them as microservices and finally doing away with the monolith functionality. Later, all other functionalities of the app are moved from monolith to microservice in a phased approach. Cloud Migration Much of the application modernization techniques adopted by enterprises today, focus on migrating monolithic, on-premises applications to a cloud-native microservices architecture for improved app performance, faster release cycles and reduced time to market. The cloud migration approach helps businesses derive more value by restructuring the application. Businesses and DevOps teams are able to take advantage of cloud models by leveraging Containers, Microservices and Kubernetes, which supports ease of scalability. Expose Functionality via APIs Finally, another approach to app modernization embraces the practice of letting the application as it is and exposing its functions or data via APIs in a secure manner. Relying heavily on the concept of integration instead of migration, this approach enables cloud-native applications to benefit from the capabilities of existing infrastructure and data. W H I T E P A P E R | b u i l d p i p e r . i o 7

10. Deployment Methodology and BuildPiper’s Approach to App Modernization! Microservices can be deployed in different ways depending on the service provider and requirements of the business. Here, we discuss the latest, most used and not so complicated way to serve all deployment needs of enterprises at the production level. Containerised Deployment How are Microservices deployed? Microservices are deployed as one atomic unit on a platform with all libraries and dependencies being bundled with each service. What is Containerization? Containerization is described as a form of operating system virtualization, through which applications are made to run in isolated user spaces called containers, each of them using the same shared operating system (OS). The process includes encapsulation or packaging up software code and all its dependencies so that it can run seamlessly and consistently on any environment or infrastructure. Benefits of Containerization Using the process of containerization, DevOps teams can build and deploy applications faster and more securely in any environment. In simple words, containerization allows applications to be “written once and run anywhere.” W H I T E P A P E R | b u i l d p i p e r . i o 8

11. Containerization Tools Docker, CRI-O, Containerd are some of the popular tools used in the industry for containerization. With the help of these, DevOps teams can easily develop, update and run containers. Out of these tools, Docker is the most popular tool that is widely adopted by enterprises. Containerization using Docker Docker is an open-source containerization platform that allows developers to package applications into containers. These containers are isolated from each other and have their own software, configuration files, libraries and dependencies bundled together. Docker uses YAML files where the configurations that are required for creating containers are coded. Containerization using Docker After the code is containerised, it is then stored as a docker image in the Docker image repository. The docker hub works seamlessly with the docker platform that helps in finding and sharing container images with the DevOps team. Explore and discover how BuildPiper helps in seamless and hassle-free onboarding of Microservices here! W H I T E P A P E R | b u i l d p i p e r . i o 9

12. Container Orchestration The need for Container Orchestration The process of container orchestration is used for running the docker image. Container orchestration adds more functionalities such as Network Management, Health Monitoring, Ingress Creation, Namespace Management, Service Discovery, Container Instance Management, Failover Management, Scaling, High Availability, Security, etc. Container Orchestration tools Kubernetes, AWS ECS, EKS, Docker Swarm, Azure Container Instances are some of the popular container orchestration tools. Out of these, Kubernetes is the most widely used container orchestration tool. Kubernetes By integrating with the Docker image repository, Kubernetes takes the docker image and deploys it in pods. A pod in Kubernetes is the smallest deployable unit that can be created and managed within Kubernetes. It is a group of one or more containers built from the docker image with a specification for running the containers. The complete configuration to deploy the containers are clubbed in two different files. Pod YAML: It has information about the docker image and the internal port Deployment YAML: It contains networking information such as port mappings, etc. W H I T E P A P E R | b u i l d p i p e r . i o 10

13. BuildPiper Approach to Microservices Onboarding! By enabling highly intuitive and hassle-free Microservices management in a secure, scalable and compliant manner, BuildPiper- has emerged as the Most Powerful Microservices Delivery Platform in the industry today! With BuildPiper, DevOps teams can easily onboard, build, manage and deploy microservices applications securely across multi/hybrid clouds, within minutes. Here’s how BuildPiper helps in the seamless and rapid onboarding of Microservices. Easy Setup of Service with One Click Environment Creation While building a new service, BuildPiper enables easy-going and unconstrained creation of an environment along with the ability to associate the service with it. Adding an environment to service is extremely simple and uncomplicated with BuildPiper, which involves clicking a few simple steps with no hassles at all. Simple Steps to Build the Docker Image BuildPiper has a well-crafted and highly-evolved ‘Build details setup template’ that enables seamless building of the Docker image on providing a few simple inputs and configurations. With Pre hooks and Post hooks, BuildPiper grants rapid and trouble- free execution of the custom steps, before and after the Docker image creation. W H I T E P A P E R | b u i l d p i p e r . i o 11

14. Automated Configuration of Deployment Details BuildPiper uses two approaches to automate service deployments. These include, -Automated Manifest Generation via Guided Form(BuildPiper UI): BuildPiper allows software teams to generate a compliant, secure, scalable, and reliable service manifest that can be transparently utilized for service deployments. -Manifest/Helm-based definition: Users can upload their custom manifest files to configure CD details for automating service deployments. Multiple Language CI Support BuildPiper offers multiple language CI support and enables comprehensive CI analysis along with the ability to set up automated CI checks. It provides seamless CI configuration for languages including JAVA, GOLANG, PHP, PYTHON, NODEJS, and others while setting up the build details. W H I T E P A P E R | b u i l d p i p e r . i o 12

15. BuildPiper Approach to Cluster Deployment Seamless and Secure Cluster Creation BuildPiper enables hassle-free and secure onboarding of an already existing cluster or the creation of a new cluster from the ground up within a few clicks. With Buildpiper, users can, Onboard an existing K8s cluster from any cloud or through On-Premise Infrastructure Setup complete Infrastructure and K8s cluster on AWS Setup K8s Cluster on-premise Complete Overview of the Deployment Status BuildPiper provides comprehensive and clear visualization of the Deployment Status with deep analytical reporting on the reasons for failure. W H I T E P A P E R | b u i l d p i p e r . i o 13

16. Ingress Creation Ingress restricts and manages access to the services from outside the Kubernetes cluster, thus ensuring authentication and security of the Kubernetes cluster. BuildPiper provides the option to create Public and Protected Ingress so that users can easily categorize the services and define the access policy. Namespace Management BuildPiper provides avant-garde capabilities to support Namespace management. Overview of the Overall Pod Status BuildPiper provides a comprehensive overview of the pod events, available pods, conditions related to pods, the number of pods running, and the overall health status of the pods. BuildPiper Approach to Security & Traffic Management! Support for ISTIO Setup and ISTIO Gateways BuildPiper enables DevOps teams to leverage the extraordinary capabilities of ISTIO for controlled traffic management by providing underlying support for ISTIO setup and ISTIO gateways. W H I T E P A P E R | b u i l d p i p e r . i o 14

17. Kiali and Jaeger Setup for Traffic Management BuildPiper manifests well-governed traffic management by offering seamless setup and support for Kiali and Jaeger. Displayed below is the traffic flow of the services within a Kubernetes cluster on the Kiali dashboard. Secrets Management With out-of-the-box ability to manage the security of platform operations in a hassle-free manner using some of the best industry-standard tools such as Hashicorp Vault and ISTIO, BuildPiper enables smooth, secured and well-monitored secrets management for seamless Microservices application delivery. Explore and learn more about the Art of Deploying a Service Mesh, here! W H I T E P A P E R | b u i l d p i p e r . i o 15

18. BuildPiper Approach to Observability, Monitoring and Security! 360-degree Cluster Observability BuildPiper provides comprehensive microservices and cluster observability capabilities for identifying issues and solutions to address those problems. With a 360-degree view of the Kubernetes cluster and its components, DevOps teams can view and monitor the performance, health status, CPU and memory allocation, node availability, containers, build & deploy logs, events and other important metrics in order to keep up with the updated changes within the cluster constantly. W H I T E P A P E R | b u i l d p i p e r . i o 16

19. Seamless setup of industry-standard tools: BuildPiper enables hassle-free and quick set-up of some of the most reliable and high-grade tools for monitoring such as Prometheus, Grafana, Alert Manager, and log management such as ElasticSearch, Fluentd, and Kibana. Conclusion; Explore Before you Embrace! Migrating to Microservices is one of the most preferred methods of modernizing existing applications for enterprises. Improved agility, easy deployment, flexibility to choose any technology, enhanced resilience and improved scalability are some of the incredible benefits that draw the attention of business leaders around the world towards adopting Microservices. But, with numerous benefits comes the huge pain of handling these complex Microservices. W H I T E P A P E R | b u i l d p i p e r . i o 17

20. Developed by DevOps experts at OpsTree Solutions, BuildPiper is a robust Microservices DevSecOps platform that has emerged as a greatly sought after and highly desired platform for managing Microservices in the industry today! BuildPiper enables seamless, smooth and secure Microservices management right from hassle-free onboarding till deploying it to the production environment. BuildPiper allows you to drive business value across microservices application delivery from Day 1 with 10X reduction in time & investments needed and a shift left philosophy & NoOps mindset for multi/hybrid cloud along with the ability to run zero-touch, fully-automated & secured CI/CD pipelines. BuildPiper has helped some of the industry-leading companies to modernize their existing business applications, migrate VMware workloads, rebuild infrastructure and re-architect applications as Microservices. Here’s how BuildPiper helps in delivering dockerized code and business functionalities from a developer’s workstation to a secured, scalable, and standardized production environment in under a day and makes Kubernetes Microservices-application ready! Managed Kubernetes for setting up a new Kubernetes cluster and enabling the onboarding of an existing one. Managed Microservices for seamless onboarding and management of Microservices in a hassle-free manner. Secured and easy setup of CI/CD Pipelines for Macro & Micro builds and deployments along with comprehensive CI analysis and customizable CI gate checks. Security, Compliance, and Observability via some of the best industry tools such as ISTIO, Hashicorp Vault, etc and 360-degree observability through a user- friendly Kubernetes dashboard. W H I T E P A P E R | b u i l d p i p e r . i o 18

21. How BuildPiper brings value to your Application & Infrastructure Modernization journey and enables the ROI? Here are some phenomenal business outcomes achieved and incredible benefits leveraged using BuildPiper that makes it one of the most reliable and powerful Kubernetes & Microservices management platforms in the market today. Its out-of- the-box features outperform other available platforms and manual grounds-up for Kubernetes deployment. Let’s take a look at a sample use case. -Setup of initial implementation activities and onboarding of 35 Microservices across environments in just 1-2 weeks with BuildPiper. - Increased developer productivity by 40 per cent. -Reduction in Cost (Spot Instances, 10X reduced Effort) with BuildPiper. - Kubernetes setup and migration in just two weeks with BuildPiper in comparison to three to six months via manual setup and grounds-up migration. - Cost reduction by 60 per cent as compared to manual grounds up for managing platform enhancements and optimization activities. - Day 1 Readiness for production release and Deployment Analytics & Troubleshooting assistance offered by BuildPiper. - The existing team is enough or can be reduced depending on the scale, to manage platform operations with BuildPiper while extra resources with Kubernetes Specific SME Skills are required to manage platform operations without BuildPiper. - Faster time to market:- the ability to go live in under a day. - Environment Management & Cloning (Creation, modification, Start & Stop). Explore other interesting and out-of-the-box capabilities of this powerful Microservices management platform to overcome app modernization challenges and accelerate business agility. Take a demo today! W H I T E P A P E R | b u i l d p i p e r . i o 19