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Pressure on teams to modernise applications

DevSecOps /

Pressure on teams to modernise applications As many organisations are moving towards a cloud-native approach, the need to modernise applications using new platforms and products is inevitable. But are the expectations on teams too much? With agile delivery being the norm, teams are empowered to experiment, align capacity to continuously learn and are encouraged to fail fast. But with that said, there is increasing pressure for teams to cut corners and adapt to tools and engineering standards as they deliver. In TL Consulting’s opinion, this is when most teams fail to adopt Kubernetes and other modern technology correctly. Issues begin to appear right through the build pipeline most commonly with security, multi-cloud integration, compliance, governance, and reliability. Embedding modern engineering standards Organisations often opt for a lift and shift approach to reduce OPEX and or CAPEX. However, the underlying code is not mature enough to be decoupled correctly and housed within a container. This requires considerable rework and creates an anti-pattern for software engineering teams. Instead, to move from the traditional 3-tier architecture and implement new technical stacks, new development principles for cloud applications such as Twelve-Factor Apps need to be embraced. Other levels of DevSecOps automation and infrastructure as code need to become the engineering standard too. The Twelve Factor App The Twelve Factor App is a methodology providing a set of principles for enterprise engineering teams. Like microservices architecture, teams can leverage the similarities of these principles to embed engineering strategies. This does require highly skilled engineers to create models that can be adopted and reused by development teams. Engineering support With these types of expectations put on immature development teams, the pressures and demand on resources impact performance and quality. From our experience we have found that even Big 4 banks require assistance to modernise applications and seek external support from platforms, and products to modernise their app portfolio. e.g., VMWare Tanzu. VMWare Tanzu is an abstraction layer on top of Kubernetes platforms which enables enterprises to streamline operations across different cloud infrastructures.  Tanzu provides ease of management, portability, resilience, and efficient use of cloud resources. It is important to note that to be successful implementing the likes of Tanzu’s suite of products, an organisation would need to establish a DevSecOps culture and mature governance models. Embracing DevSecOps TL Consulting has found many organisations need guidance when embedding a culture shift towards DevSecOps. Teams must have a security first mindset. The norm therefore should not be limited to the likes of security testing, such as Static Application Security Testing (SAST) and Dynamic Application Security Testing (DAST), but instead focus on securing applications by design and automating security practices and policies across the SDLC. After all, the goal is to standardise teams’ daily activities, to build secure software into cloud-native engineering workflows. Infrastructure-as-code (IaC) As IT infrastructure has evolved, leveraging IaC can now be invigorating for teams. Engineers can spin up fully provisioned environments that scale, are secure and cost effect. However, if DevSecOps and infrastructure automation orchestration are not aligned, CI/CD pipelines and cloud costs will be difficult to control. To achieve these sustainable processes and practices, implementing a DevSecOps culture that has mature governance models will help keep cloud costs optimised. Conclusion Providing teams with capacity and implementing modern technology platforms will not overcome the engineering challenges faced when modernising applications. To modernise applications requires an established DevSecOps culture, robust governance models and highly skilled teams. Additionally, each team needs to understand the application(s) under their control to determine what needs to be automated. For example: the purpose of the application and customer experience architecture and design of the application and its dependencies application workflows and data privacy policies compliance with government managed data (if applicable) business security policies & procedures cloud security policies & procedures which impact the application application infrastructure employed The modern platforms, products and tools therefore become enablers to optimise cloud-native adoption, not solutions. This is where onsite education, guidance and support from experts and subscriptions models like A Cloud Guru, can be highly beneficial for leaders and engineers. If you are facing challenges implementing DevSecOps or adopting modern technology platforms such as Kubernetes, contact us.

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Road to a Cloud Native Journey

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Road to a Cloud Native Journey Author:  Ravi CheetiralaTechnical Architect ( Cloud & DevSecOps) at TL Consulting “Cloud Native” is the new buzz word in the modern application development. It is an evolving application build pattern. The technology is relatively new to the market; thus, our understanding of the architecture is very primitive and keeps changing over the time with technological advancements in the cloud and containers. Understanding cloud native approach and strategy helps to build better understanding among developers, engineers, and technology leaders so that, teams can collaborate each other more effectively. The Need for Cloud Application Modernization: In today’s IT landscape, 70-80% of C-Executives report that their IT budgets are spent on managing the legacy applications and infrastructure – In addition to that, legacy systems consume almost 76% of the IT spend. Despite of large amount of investment on legacy applications, most businesses fail to see through their digital transformation plans to a satisfactory. On the other hand, constantly changing digital behaviours of consumers and the evolution of viable, reduced opex, self-sustaining infrastructure models that are better suited to today’s pace of technological change are the primary drivers pushing application modernization up the CIO/CTO’s list of priorities. According to a study conducted by Google, public cloud adoption alone can reduce the IT overheads by 36-40% when migrating from traditional IT frameworks. However, application modernization can help in further reduction – it frees up the IT budget to make space for innovation and exploring new opportunities of business value. Lastly, this digital transformation brings greater agility, flexibility, and transparency while opening operations up to the benefits of modern technologies like AI, DevSecOps, intelligent automation, IoT, etc. Kickstart to Cloud Native Journey Beyond the upfront investments after creating a buy-in, application modernization entails several considerations to be made by the CIOs, and more importantly, a game plan to manage the massive amount of change that comes with such a large-scale transformation. However, moving away from the sunk costs of legacy IT can help enterprises take on a new trajectory of profitability and value. Here are four essential steps to a successful application modernization roadmap. Assessment of legacy system landscape: The first and crucial step of the application modernisation journey should be assessment of the legacy system systems. identify the business-critical systems, applications, and business processes. High-value assets that need to be modernized on priority can form the first tier of the legacy application modernization process. Next, we need to start with business value and technical impact assessments. The outcome of these assessments will drive the journey further down to the roadmap. Pickup your Anchor applications: Once an assessment is complete and business services are identified, team must shortlist their modernization options from their legacy application suite. This list will enable a more targeted implementation plan. Following this, an implementation framework needs to be developed and implemented, which will help you to create a modernization schedule. Assessment should also help in determining the scope of the project, team, technologies, and the skills required. Define the success criteria: Various application transformation approaches comprise different costs and risks involved. Say for some instances refactoring a legacy application cost much higher than rebuilding the application using a new technical stack. Most of the times organisations fail to determine the target outcomes in effective manner. So, it is very important to measure the change, costs and risks involved along with the return on investment, the features we aim to improve, and set new benchmarks of attaining agility and resilience while bringing an enhanced security and risk management strategy into the portfolio. Structure of target operating model: The traditional operating structure consists of network engineers, system administrators, and database engineers, are no longer fit to support to the new modern digital transformation landscape, so the organisation must align the IT landscape to suite to new suite, alongside upskilling/reskilling path – In the end, applications are ultimately maintained and supported by the people, and your end state operating model must account for ownership of microservices, who will configure and manage the production environment, etc. Benefits of Cloud Native applications: Drives Innovation: With a new cloud native environment, it is easy drive the digital transformation and  to adopt the new age technologies like AI/ML, automation driven insights as these are readily available in most of the cloud environments and comes with easy integration to the applications. Ship Faster: In current world, key to the success of any business is time to market. With the DevOps and CI/CD capabilities, it is very much a possibility to deploy changes very frequently (multiple times in day) while it takes months to deploy a change in traditional software development. Using DevOps, we can transform the software delivery pipeline using automation, building automation, test automation, or deploy automation. Optimised Costs: Containers manage and secure applications independently of the infrastructure that supports them. Most of the organisations use Kubernetes to manage the large volumes of containers. Kubernetes is an open-source platform that is standard for managing resources in the cloud. Cloud-native applications are using containers; hence it fully benefits from containerization. Alongside Kubernetes, there is a host of powerful cloud-native tools. This, along with an open-source model, drives down costs. Enhanced cloud-native capabilities such as Serverless let you run dynamic workloads and pay-per-use compute time in milliseconds. So, it has standardization of infrastructure and tooling. Hence, it helps to reduce cost. Improved Reliability: Achieving high fault tolerance is hard and expensive with the traditional applications. With modern cloud-native approaches like microservices architecture and Kubernetes in the cloud, you can more easily build applications to be fault tolerant with resiliency and autoscaling and self-healing built in. Because of this design, even when failures happen you can easily isolate the impact of the failure, so it doesn’t take down the entire application. Instead of servers and monolithic applications, cloud-native microservices helps you achieve higher uptime and thus further improve the user experience. Foundational elements of Cloud Native applications: In general, cloud native applications are designed

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The need for adoption

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Embrace DevSecOps Author:  Ravi CheetiralaTechnical Architect ( Cloud & DevSecOps) at TL Consulting DevOps is a widely adopted cultural norm in modern software development. It enabled enterprises to bring development teams, operations teams and tools under a single streamlined process. In addition, its automation capabilities help organisations to deliver the software much faster, by reducing the costs and release cycle times. However, in many cases security is not prioritised as a part of the CI/CD practices, thus the move to DevSecOps has not been adopted. While DevOps has been a successful methodology, one of the key roadblocks is that it doesn’t stress much upon a security and governance lens, as its core focus is on agility and faster time to market. A recent survey conducted by GitLab, (one of the popular DevOps vendors) had proven the point that more than 70% organisations have not included security in their DevOps model. With the rise of cyber-attacks, most of the incidents occur by exploiting the vulnerabilities in the software, which indicates a compelling need of rearchitecting the existing DevOps model to DevSecOps by adding additional levels of security and governance. Market Insights on DevSecOps adoption As per the recent survey by Gitlab conducted in the fall of year 2021. Please find some of the insights on DevOps, and security. The chart below illustrates the various drivers to adopt the DevSecOps. These findings demonstrate the alignment of improved security as a top priority for DevSecOps enablement. Why do we need DevSecOps? As per the above market insights, it is evident that more than 50% of the organisations have chosen security as their primary driver to lead to adoption. This is due to the fact conventional security measures are not good enough to cope up with latest technology innovations. Hence there is pressing need of DevSecOps adoption to have high security measures. What is DevSecOps? DevSecOps is an extension of DevOps by adding additional measures on security and governance layers, such as security testing, observability and, governance. Just like DevOps, the goal of DevSecOps is to deliver the trusted and secured software faster. Security adoption barriers in DevOps: Developers are focused on acceleration, least bothered about security – With the DevOps adoption, developers deliver the software faster. However, they tend to ignore the best security practices. Some of the risks include using an unsolicited third-party /open-source software downloaded from the internet without much of scrutiny and consent. Conflicting interests between teams – Development teams are usually relying on other teams for security and vulnerability testing, which is usually planned as a separate phase of the project. The delivered software might pose multiple security threats, vulnerabilities and usually, security analysts are assigned to review and take care of these issues. These usually create a knowledge gap between teams, thus end up delivering a compromised software. Cloud and container security challenges – Undoubtedly the wide adoption of containers and public cloud environments are helping in exceptional productivity with low cost and innovation lens for the organisation, however it also brings new security risks and challenges.  For instance, containers are an operating system agnostic and  that can run applications anywhere, but the lack of visibility into containers makes it difficult to scan them for vulnerabilities. Lack of skills and knowledge on security – There are fundamental knowledge gaps on security frameworks as most of the security standards are industry specific. Which acts as a barrier to achieve higher degree of efficiency with devops. The pitfall of DevOps nature – The core nature of DevOps is collaboration of the teams. This interconnection allows us the sharing of privileged information. Teams share account credentials, tokens, and SSH keys. Systems such as applications, containers, and microservices also share passwords and tokens. This opens an opportunity to attackers to disrupt operations, and steal information.          How to implement DevSecOps? Embed Security in the pipelines – Implement security in the DevOps or CI/CD pipelines as an additional level of integration, such as including the DAST, SAST and vulnerability, image scanning tools, which would help to identify and resolve the code vulnerabilities as soon as they appear. Identify the compliance requirements at design stage – Understand the organisation security framework and compare with the industry’s security guidelines during the early stages of design. This gap analysis will help us to assess the right tools to choose for automation. Shift left security approach – Embedding the security in the early stages of development cycles. As we move along to various phases of the development process, security will be carried along instead of focusing on the end. This leads to a better outcome and lesser challenges. Shift left is a preventive approach rather a reactive one. Automate as much as possible – The cornerstone of the DevOps is automation, use those capabilities to automate the security and governance by integrating with right tools in the CI/CD pipelines. DevSecOps tooling needs to run with full automation without any manual interventions. Validating cloud /container security standards – As a best practice, it is good to evaluate the cloud security standards with organisational, industry security frameworks and identify the gaps in the early stages. This will ensure the early detection of threats and organisational alignment. Creating awareness and education – Clear delineation of roles and responsibilities, creating the awareness of security best practices, providing education on industry security framework. Establishing a safe code guideline from the security lens. Adopting a security tooling is not always the best solution, as it might be ineffective if the teams do not know on how to use it. Establishing a governance model – Creating a governance model is the vital part of implementing the devsecops model to get the maximum outcome. Adopt the observability and governance tools, which will help to create a transparency in the teams to identify and address the security and other application related issues reported at all levels. How does DevSecOps fit in organisational GRC framework? GRC (Governance, Risk management and Compliance) and DevSecOps use various skills, tools and processes.

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VMware Tanzu and TL Consulting Partnership

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VMware Tanzu Partnership Modernize your applications and infrastructure to deliver better software to production, continuously. TL Consulting is proud to be a VMware partner and is focussed on Modern Applications, using VMware Tanzu as the technology of choice to manage them in multi-cloud and native cloud environments. Free your apps Microservices, containers and Kubernetes help to free apps from infrastructure, enabling them to work independently and run anywhere. With VMware Tanzu, you can make the most of these cloud native patterns, automate the delivery of containerised workloads, and proactively manage apps in production. It’s all about freeing developers to do their thing: build great apps. Your challenge is to speed up the pace of innovation while reducing cost and lowering risk. There’s a proven way to do this: Adopt modern software development methodologies and more efficient cloud computing models. VMware Tanzu customers are achieving results like this: 400% faster release velocity 83% fewer incidents 80% faster security patching 60% reduction in infrastructure costs to transition into a Cloud Native environment. Why TL Consulting? A VMware Tanzu implementation by TL Consulting will enable your organisation to deliver lasting change and grow through highly differentiated digital experiences. Our team of competitively priced onshore engineers specialises in native cloud and app modernisation, and works closely with their VMware counterparts to devise and implement Tanzu solutions that address specific problem statements and challenges that our customers are encountering. The image below provides a high level overview of our services offered for each edition. VMWare Tanzu offers three editions Basic, Standard and Advanced to get you started. Learn More about VMware Tanzu and TL Consulting Find out more about how TL Consulting can help you on your Tanzu journey. Our work always begins with a complimentary discussion on how we might help you. Click here to view our Tanzu services.

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How to modernise legacy applications

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How to modernise legacy applications Hosting applications on the cloud is a strategic objective for most organisations. There are many benefits to modernise legacy applications and implementing enablers such as automated deployments, auto-scaling and containerised architectures. These include lower running costs and better performance. However, there is a perception that many legacy systems and commercial off-the-shelf (COTS) applications cannot be modernised. Instead, organisations opt for a “Lift and Shift” approach which not only requires a significant amount of rework and refactoring but does not deliver any of the benefits of the cloud. Consider an alternative to lift and shift While a “Lift and Shift” approach is an affordable option, there are often additional costs. These costs are generally not in the initial estimates. When estimating costs, the overall vision of the application and its lifecycle needs to be considered. As does the Total Cost of Ownership after deployment. When these factors are included the cost will often be more than first expected. But higher cost is not the only factor to consider. A lift and shift approach often does not deliver the benefits of moving to the cloud such as performance improvements and deployment efficiencies. As an alternative, monolithic applications can benefit from modern architectures such as Kubernetes, without rearchitecting the solution. An option that few organisations consider or have the skills to accomplish. This provides the same benefits as a “Lift and Shift” but at the same time, provides a model that enables a relatively mature cloud native application. A white paper and case study In the following sections, we will explore key findings from a recent application modernisation service provided to a NSW Government agency. In this white paper we describe how we successfully migrated a legacy Oracle SOA application stack to containerised infrastructure. We explore common challenges, solution design, the implementation and business benefits too. Common Challenges in Modernising Monolithic Applications A main difference between monolithic and microservices architectures, apart from the obvious scalability, flexibility and agility benefits that are achieved with microservices, is that monolithic applications are built of layers and components that are tightly coupled. Putting all these layers and components in one docker container does not at first sight seem like a viable option. Such an approach appears to be adding an external shell on top of the existing layers, thereby further complicating the build process. Also, from a scalability perspective, what if the consumption of the different components were not uniform? In other words, only few of the components would need to be replicated instead of replicating complete layers. It will be a complete waste of infrastructure resources having to replicate all the components when only a few are in high demand. Solution Design Stage Firstly, the engineering teams needed to assess the feasibility of decoupling the application components and explore different architecture design options. Secondly, we evaluated data segregation based on the needs of Docker containers. The next step of the design stage shows the different deployment models highlighting their respective advantages and disadvantages. Depending on the infrastructure, there are different options that can be considered. Another aspect that may need consideration is stateful versus stateless components. With technologies like docker and Kubernetes, running stateless workloads is easier compared to Stateful. The Solution Design Stage is important to setting up the core foundation of the modernised application. Without this assessment, key issues with the code, technology and or architecture will not be identified. In turn, the application will inherit the technical debt thus not achieving the ROI of the project. We often hear from other clients that TCO has risen due to poor analysis of an applications current state. Implementation Stage During the implementation stage there were many considerations to address. We needed to have robust continuous integration and continuous delivery pipelines to ensure stage gates are controlled and governed. This approach enabled the teams to have the transparency that was unfortunately lacking within the current technology stack. Infrastructure as code, cost benefit analysis, team skill levels and workflows were among other considerations, risks and issues to overcome. The image below shows a simplified version of the solution pipelines and technology stack. Figure 1 The Design that was implemented for our client needed to address three critical issues. The first issue was a manual activity requiring an engineer to switch a malfunctioning active node to a standby node. The second issue, was overcoming the substantial costs of the previous lift and shift implementation. The cost of provisioning and maintaining the different environments for the platform exceeded that of running it on VMs. The last main issue was scalability. Adding another node group to the platform to handle extra load was an onerous process, which required extensive planning prior to implementation. It is important to note, the infrastructure components and workloads were compliant with the mandated government policies and the government data centre models. Outcomes and Business Benefits Our client realised the immediate benefit of implementing an engineering model that leveraged an infrastructure-as-code pipeline and Kubernetes. Automated build/test/deploy pipelines, Self-Healing, Auto-scaling and 0% Downtime gradual deployments were just a few benefits that helped our client move towards a cloud-native approach. A Cloud-Native Partner While most internal engineers know the business and product well enough to perform a “Lift and Shift” approach, to modernise legacy applications effectively requires specialised DevOps knowledge. TL Consulting can provide this expertise allowing your team to get as close as possible to cloud native models when migrating your legacy systems to the cloud. If you want to find out more, please review our application modernisation services page or contact us below.

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