This article is contributed. See the original author and article here.
This blog will provide an overview of Modern application development. I will first define the modern application development approach. Then delve into the ‘7 building blocks’ of the approach starting with cloud native architecture, followed by AI, Integration, Data, Software delivery, Operations, and Security.
Each segment will define and explain the ‘building block’ and how the modern application development approach leverages the ‘building blocks’ to produce more robust applications.
Modern application development is an approach that enables you to innovate rapidly by using cloud-native architectures with loosely coupled microservices, managed databases, AI, DevOps support, and built-in monitoring.
The resulting modern applications leverage cloud native architectures by packaging code and dependencies in containers and deploying them as microservices to increase developer velocity using DevOps practices.
Subsequently modern applications utilize continuous integration and delivery (CI/CD) technologies and processes to improve system reliability. Modern apps employ automation to identify and quickly mitigate issues applying best practices like infrastructure as code and increasing data security with threat detection and protection.
Lastly, modern applications are faster by infusing AI into native architecture structures to reduce manual tasks, accelerating workflows and introducing low code application development tools to simplify and expedite development processes.
According to The Cloud Native Computing Foundation (CNCF), cloud native is defined as “Cloud-native technologies empower organizations to build and run scalable applications in modern, dynamic environments such as public, private, and hybrid clouds.
Containers, service meshes, microservices, immutable infrastructure, and declarative APIs exemplify this approach.
These techniques enable loosely coupled systems that are resilient, manageable, and observable. Combined with robust automation, they allow engineers to make high-impact changes frequently and predictably with minimal toil.”
Utilizing that definition, what are the key tenants of a cloud-native approach, and how does each tenant benefit you?
As stated above, cloud-native architectures center on speed and agility. That speed and agility are derived from 6 factors:
1. Cloud infrastructure
2. Modern design
5. Backing services
Cloud infrastructure is the most important factor that contributes to the speed and agility of cloud-native architecture.
3 Key Factors
1. Cloud-native systems fully leverage the cloud service model using PaaS compute infrastructure and managed services.
2. Cloud-native systems continue to run as infrastructure scales in or out without worrying about the back end because the infra is fully managed.
3. Cloud-native systems have auto scaling, self-healing, and monitoring capabilities.
Modern Design is highly effective in part due to the Twelve-Factor Application method, which is a set of principles and practices that developers follow to construct applications optimized for modern cloud environments.
Most Critical Considerations for Modern Design
1. Communication — How front ends communication with back-end services, and how back-end services communicate with each other.
2. Resiliency — How services in your distributed architecture respond in less-than-ideal scenarios due to the in-process, out-process network communications of microservices architecture.
3. Distributed Data — How do you query data or implement a transaction across multiple services?
4. Identity — How does your service identify who is accessing it and their allotted permissions?
What are Microservices?
Microservices are built as a distributed set of small, independent services that interact through a shared fabric.
Improved Agility with Microservices
1. Each microservice has an autonomous lifecycle and can evolve independently and deploy frequently.
2. Each microservice can scale independently, enabling services to scale to meet demand.
Those microservices are then packaged a container image, those images are stored in container registry. When needed you transform the container into a running container instance, to utilize the stored microservices. How do containers benefit cloud native apps?
Benefits of Containers
1. Provide portability and guarantee consistency across environments.
2. Containers can isolate microservices and their dependencies from the underlying infrastructure.
3. Smaller footprints than full virtual machines (VMs). That smaller size increases density, the number of microservices, that a given host can run at a time.
Cloud native solutions also increase application speed and agility via backing services.
Benefits of Backing Services
1. Save time and labor
2. Treating backing services as attached resources enables the services to attach and detach as needed without code changes to the microservices that contain information, enabling greater dynamism.
Lastly, cloud-native solutions leverage automation. Using cloud-native architectures your infrastructure and deployment are automated, consistent, and reputable.
Benefits of Automation
1. Infrastructure as Code (IaC) avoids manual environment configuration and delivers stable environments rapidly at scale.
2. Automated deployment leverages CI/CD to speed up innovation and deployment, updating on-demand; saving money and time.
The second building block in the modern application development approach is Artificial intelligence (AI).
What comprises artificial intelligence? How do I add AI to my applications? Azure Artificial Intelligence is comprised of machine learning, knowledge mining, and AI apps and agents. Under the apps and agent’s domain there are two overarching products, Azure Cognitive Services and Bot Service, that we’re going to focus on.
Cognitive services are a collection of domain specific pre-trained AI models that can be customized with your data. Bot service is a purpose-built bot development environment with out-of-the-box templates. To learn how to add AI to your applications watch the short video titled “Easily add AI to your applications.”
User benefits: Translation, chatbots, and voice for AI-enabled user interfaces.
Business benefits: Enhanced business logic for scenarios like search, personalization, document processing, image analytics, anomaly detection, and speech analytics.
Modern Application Development unique benefit:
Enable developers of any skill to add AI capabilities to their applications with pre-built and customizable AI models for speech, vision, language, and decision-making.
The third building block is integration.
Why is integration needed, and how is it accomplished?
Integration is needed to integrate applications by connecting multiple independent systems. The four core cloud services to meet integration needs are:
1. A way to publish and manage application programming interfaces (APIs).
2. A way to create and run integration logic, typically with a graphical tool for defining the workflow’s logic.
3. A way for applications and integration technologies to communicate in a loosely coupled way via messaging.
4. A technology that supports communication via events
What are the benefits of Azure integration services and how do they translate to the modern app dev approach?
Azure meets all four needs, the first need is met by Azure API management, the second is met by Azure Logic Apps, the third is Azure Service Bus, and the final is met by Azure Event Grid.
The four components of Azure Integration Services address the core requirements of application integration. Yet real scenarios often require more, and this is where the modern application development approach comes into play.
Perhaps your integration application needs a place to store unstructured data, or a way to include custom code that does specialized data transformations.
Azure Integration Services is part of the larger Azure cloud platform, making it easier to integrate data, APIs, and into your modern app to meet your needs.
You might store unstructured data in Azure Data Lake Store, for instance, or write custom code using Azure Functions, to meet serverless compute tech needs.
The fourth building block is data, and more specifically managed databases.
What are the advantages of managed databases?
Fully managed, cloud-based databases provide limitless scale, low-latency access to rich data, and advanced data protection — all built in, regardless of languages or frameworks.
How does the modern application development approach benefit from fully managed databases?
Modern application development leverages microservices and containers, the benefit to both technologies is their ability to operate independently and scale as demand warrants.
To ensure the greatest user satisfaction and app functionality the limitless scale and low-latency access to data enable apps to run unimpeded.
The fifth building block is software delivery.
What constitutes modern development software delivery practices?
Modern app development software delivery practices enable you to meet rapid market changes that require shorter release cycles without sacrificing quality, stability, and security.
The practices help you to release in a fast, consistent, and reliable way by using highly productive tools, automating mundane and manual steps, and iterating in small increments through CI/CD and DevOps practices.
A compound of development (Dev) and operations (Ops), DevOps is the union of people, process, and technology to continually provide value to customers. DevOps enables formerly siloed roles — development, IT operations, quality engineering, and security — to coordinate and collaborate to produce better, more reliable products.
By adopting a DevOps culture along with DevOps practices and tools, teams gain the ability to better respond to customer needs, increase confidence in the applications they build, and achieve development goals faster.
DevOps influences the application lifecycle throughout its plan, develop, deliver, and operate phases.
In the plan phase, DevOps teams ideate, define, and describe features and capabilities of the applications and systems they are building. Creating backlogs, tracking bugs, managing agile software development with Scrum, using Kanban boards, and visualizing progress with dashboards are some of the ways DevOps teams plan with agility and visibility.
The develop phase includes all aspects of coding — writing, testing, reviewing, and the integration of code by team members — as well as building that code into build artifacts that can be deployed into various environments. To develop rapidly, they use highly productive tools, automate mundane and manual steps, and iterate in small increments through automated testing and continuous integration.
Delivery is the process of deploying applications into production environments and deploying and configuring the fully governed foundational infrastructure that makes up those environments.
In the deliver phase, teams define a release management process with clear manual approval stages. They also set automated gates that move applications between stages until they’re made available to customers.
The operate phase involves maintaining, monitoring, and troubleshooting applications in production environments. In adopting DevOps practices, teams work to ensure system reliability, high availability, and aim for zero downtime while reinforcing security and governance.
Under continuous integration, the develop phase — building and testing code — is fully automated. Each time you commit code, changes are validated and merged to the master branch, and the code is packaged in a build artifact.
Under continuous delivery, anytime a new build artifact is available, the artifact is automatically placed in the desired environment and deployed. With continuous deployment, you automate the entire process from code commit to production.
The sixth building block is operations to maximize automation.
How do you maximize automation in your modern application development approach?
With an increasingly complex environment to manage, maximizing the use of automation helps you improve operational efficiency, identify issues before they affect customer experiences, and quickly mitigate issues when they occur.
Fully managed platforms provide automated logging, scaling, and high availability. Rich telemetry, actionable alerting, and full visibility into applications and the underlying system are key to a modern application development approach.
Automating regular checkups and applying best practices like infrastructure as code and site reliability engineering promotes resiliency and helps you respond to incidents with minimal downtime and data loss.
The seventh building block is multilayered security.
Why do I need multi-layered security in my modern applications?
Modern applications require multilayered security across code, delivery pipelines, app runtimes, and databases. Start by providing developers secure dev boxes with well-governed identity. As part of the DevOps lifecycle, use automated tools to examine dependencies in code repositories and scan for vulnerabilities as you deploy apps to the target environment.
Enterprise-grade secrets and policy management encrypt the applications and give the operations team centralized policy enforcement. With fully managed compute and database services, security control is built in and threat protection is executed in real time.
While modern application development can seem daunting, it is an approach that can be done iteratively, and each step can yield large benefits for your team.
Access webinars, analyst reports, tutorials, and more on the Modern application development on Azure page.
Brought to you by Dr. Ware, Microsoft Office 365 Silver Partner, Charleston SC.