Welcome!

@CloudExpo Authors: Yeshim Deniz, Pat Romanski, Zakia Bouachraoui, Liz McMillan, Elizabeth White

Related Topics: @DevOpsSummit, Microservices Expo, @CloudExpo

@DevOpsSummit: Blog Feed Post

Cloud Migration: From Monolith to Microservices | @CloudExpo #Microservices

With web and mobile platforms established this then makes possible the full three-tier scope of ADM transformations.

Cloud Migration Management (CMM) refers to the best practices for planning and managing migration of IT systems from a legacy platform to a Cloud Provider through a combination professional services consulting and software tools.

Legacy Transformation and Modernization
A Cloud migration project can be a relatively simple exercise, where applications are migrated ‘as is’, to gain benefits such as elastic capacity and utility pricing, but without making any changes to the application architecture, software development methods or business processes it is used for.

There may be a clear business for doing so, such as the hardware platform becoming obsolete, however the organization overall won’t realize any additional benefits, there is no business transformation as part of this move.

With senior executives potentially expecting broader strategic capabilities as a result of a move to the Cloud, it’s therefore important that clarifying this scope is the very first step in planning a Cloud migration, and the OMG’s Architecture Driven Modernization methodology is ideal for this purpose.

As the ADM ‘Horseshoe’ model articulates, and this Carnegie Mellon article, a migration project can be considered with three distinct tiers of scope possible, increasing the size and length of the project with an increasing level of associated business benefit.

This begins at 1) a Technical migration, meaning the application is migrated ‘as is’ to a new hardware infrastructure service without modification.

Breaking Innovation Gridlock – Harnessing DevOps and Microservices
Higher levels then include 2) Application and Data Architecture and 3) Business Architecture, meaning that as well as shifting platforms the application itself is also transformed and then furthermore, so is the business model that it enables.

As the horseshoe describes these increases in scope mean a larger project that takes longer, because each is delivering a larger scope of business benefits, impacting a larger group of stakeholders and requiring a larger business transformation exercise.

Exploring the nature of these benefits can help specify exactly what business executives are hoping to gain by moving to the Cloud, and this can be headlined by a theme of “breaking innovation gridlock”, described in this white paper from HP.

In short this described how most large enterprise organizations have a legacy application estate, made up of elderly technologies like mainframes running COBOL, that perform the core business processes of the organization and are thus central to the business value they provide, but because of their age have become rigid, inflexible and fragile business systems.

Due to the complexity of these environments and the lack of staff skilled in these technologies they essentially become untouchable black boxes; the CIO can’t take the risk of downtime by trying to make changes and due to their age their maintenance is very costly, consuming the majority of their budgets as HP describes.

Thus they have become trapped in a state of innovation gridlock, unable to afford investment in new digital-enabling platforms and unable to adapt legacy systems to offer new customer-centric processes.

software process cycle

Enterprise DevOps
Therefore although moving to IaaS can deliver benefits such as elastic capacity and utility pricing for infrastructure level components, this isn’t really of strategic value to most large organizations as they aren’t constrained in these areas.

Instead where the major business value will come from is modernizing this legacy environment, transforming the core enterprise applications to new Cloud-centric approaches so that innovation gridlock is broken and a faster cycle of development throughput is achieved.

A variety of tools are available that can automate the process of transforming legacy code like COBOL into their modern equivalents on Java and .net, meaning they can be re-deployed to private or public Cloud services and most importantly, then much more easily modified by software developers, setting the scene for an agile Enterprise DevOps culture and faster change cycle achieved through Continuous Deployment practices.

Furthermore leading edge Cloud architecture principles can also be utilized, such as ‘Microservices’. This means breaking up large monolith software, like mainframe systems, into an array of small self-contained services making it even easier to implement change at a faster pace. As described in our Microservices section pioneering organizations like Nike have adopted this approach.

rsz_cloud_technology

Conclusion
An especially powerful aspect of these legacy transformation solutions is that they can also automatically generate the new code required for key features such as a web front-end and mobile client.

This would provide the foundations for achieving the enhanced functionality that senior executives are likely hoping for from their Cloud investments. As they seek to pioneer their digital strategies enabling ‘omnichannel’ access across web and mobile interfaces the IT team would previously have faced a considerable challenge achieving this goal when working with aged application environments.

By employing the full scope of Architecture Driven Modernization they can quickly accomplish this important capability while also transforming the environment so that additional innovative enhancements can more easily be engineered too on an ongoing basis.

With web and mobile platforms established this then makes possible the full three-tier scope of ADM transformations. Business executives can more easily build social communities around their core business processes, explore dynamic new mobile commerce scenarios, and so on. In short the only limitation of the innovative business models they might pioneer would be their imagination, not the IT estate.

The post Cloud Migration: From Monolith to Microservices appeared first on Cloud Best Practices.

More Stories By Cloud Best Practices Network

The Cloud Best Practices Network is an expert community of leading Cloud pioneers. Follow our best practice blogs at http://CloudBestPractices.net

CloudEXPO Stories
Blockchain has shifted from hype to reality across many industries including Financial Services, Supply Chain, Retail, Healthcare and Government. While traditional tech and crypto organizations are generally male dominated, women have embraced blockchain technology from its inception. This is no more evident than at companies where women occupy many of the blockchain roles and leadership positions. Join this panel to hear three women in blockchain share their experience and their POV on the future of blockchain.
BMC has unmatched experience in IT management, supporting 92 of the Forbes Global 100, and earning recognition as an ITSM Gartner Magic Quadrant Leader for five years running. Our solutions offer speed, agility, and efficiency to tackle business challenges in the areas of service management, automation, operations, and the mainframe.
Docker and Kubernetes are key elements of modern cloud native deployment automations. After building your microservices, common practice is to create docker images and create YAML files to automate the deployment with Docker and Kubernetes. Writing these YAMLs, Dockerfile descriptors are really painful and error prone.Ballerina is a new cloud-native programing language which understands the architecture around it - the compiler is environment aware of microservices directly deployable into infrastructures like Docker and Kubernetes.
Apptio fuels digital business transformation. Technology leaders use Apptio's machine learning to analyze and plan their technology spend so they can invest in products that increase the speed of business and deliver innovation. With Apptio, they translate raw costs, utilization, and billing data into business-centric views that help their organization optimize spending, plan strategically, and drive digital strategy that funds growth of the business. Technology leaders can gather instant recommendations that result in up to 30% saving on cloud services. For more information, please visit www.Apptio.com.
In an age of borderless networks, security for the cloud and security for the corporate network can no longer be separated. Security teams are now presented with the challenge of monitoring and controlling access to these cloud environments, at the same time that developers quickly spin up new cloud instances and executives push forwards new initiatives. The vulnerabilities created by migration to the cloud, such as misconfigurations and compromised credentials, require that security teams take a proactive approach, educating employees about the risks of human error. Cloud infrastructure and SaaS applications are some of the most notorious network blind spots, and with insider threat posing such a significant risk, visibility has also never been more important - or more difficult.