Microservices
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Learn all about microservices from Product Marketing Manager Dan Giordano. We'll cover how to get started, the benefits, potential challenges, and how SmartBear can help.
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Microservices
- 2. Page Proprietary & Confidential Microservices: an approach to engineering focused on building single-function modules with well-defined interfaces and operations. • Minimize risk and scope of change • Easy to deploy • Easy to understand across the business Microservices 2
- 3. Page Proprietary & Confidential 3 Microservices Monolithic Architecture Microservices Architecture User Interface Business Logic Data Layer DB DB DB DB DB Microservice Microservice Microservice Microservice Microservice User Interface
- 4. Do One Thing. And Do It Well. Microservices
- 5. Page Proprietary & Confidential 5 Microservices Application Microservice Lifecycle Monolithic Lifecycle Microservice Microservice Microservice Build Test Deploy Monitor Build Test Deploy Monitor Build Test Deploy Monitor Build Test Deploy Monitor
- 6. Page Proprietary & Confidential 6 Microservices Benefits Of Microservices Separation of Services Easy to Change Tech Simple to Understand Increased Availability Reusability of Services Decentralized Data Easy to Deploy - Services focus on one single function - No large commitment to one tech stack - Distributed teams can understand small functions easier - Improve fault isolation and system resiliency - Reuse microservices through your organization - Each microservice is responsible for its database - Deploy in literally pieces
- 7. Page Proprietary & Confidential 7 Microservices Experience Layer Process Layer System Layer Cancel Credit Card View Balance Receipt API TwillioSalesforce Fraud API Fraud DB Credit Score API Card Sales API User DB Messaging API Activity API New Acct # API Check Balance API Microservice in Enterprise
- 8. Page Proprietary & Confidential 8 Microservices Challenges Of Microservices What services exist, connect, function as Unit, System, API Testing Service dependency Managing scale and performance
- 9. Page Proprietary & Confidential 9 Microservices Complexity On top of normal APIcomplexity: • Exponential number of connections • Accuracyof API abstractions • Not fully standardized Complexity Automation Availability Performance Microservice Microservice You Start With… And End Up With… Microservice Microservice Microservice Microservice Microservice Microservice
- 10. Page Proprietary & Confidential 10 Microservices Test Automation Complexity Automation Availability Performance • Functional Testing • Testing Stateand Data • ServiceChaining • Test Refactoring That’s a lot of endpoints to test!
- 11. Page Proprietary & ConfidentialMicroservices Availability Complexity Automation Availability Performance • 84% ofQAteamsreportdelayswaitingfor services, components,API’setc. • 81% ofDevelopmentteamsreportdelayswaitingfor services,components,API’setc. • Accessto requiredsystems • Averagenumberofsystemsneededfor dev/test=52 • Averagenumberofsystemsavailablefor dev/test=32 • Averagewaittimeto accessrequiredsystems=32days Application Under Test Tester $00.02 per callAPI Still Getting Built Legacy, Fragile Database 11
- 12. Page Proprietary & Confidential 12 Microservices Performance Complexity Automation Availability Performance • Testing performance on asingle serviceversus system-wide testing • Modelling large-scaleusage economically • Driving data data-driventesting approach
- 13. Page Proprietary & Confidential 13 Microservices How Can We Combat These Challenges? Definition Driven Development Continuous Testing Service Virtualization Continuous Monitoring Designing and building your API with a standard spec like Swagger will encourage collaboration and speed up work across development and test. Make sure that a sense of ownership of “testing” and “quality” is felt equally by the development, testing, and operations teams. Empower everyone with tools and processes for success. Virtualize services so that fragile, production, or 3rd Party systems are always available for integration, E2E, and performance testing. Monitoring your application’s performance and user experience pre and post production to shorten downtimes and MTTR.
- 14. SmartBear Helps Across The Entire API Lifecycle Microservices
- 15. Page Proprietary & Confidential 15 SmartBear’s API Lifecycle Toolset Design Build Test Deploy Microservices Codegen– generateclientSDKsandserverstubs SwaggerUI–buildbeautifuldocumentation Editor–Designswagger-basedAPIseasily SwaggerHub Virtualizewebservices,allowing yourdevelopmentortesting teamtoworkona“live”API in parallel ServiceV Functional– Automatedtestingfor SOAP&RESTAPIs Secure– RunsecurityscansagainstyourAPIs SoapUI Pro SyntheticmonitoringforAPIs preandpostproduction AlertSite LoadUI Pro Performloadandperformance testsagainstyourAPIs MONITOR DESIGN/BUILD BUILD/TEST TEST TEST DEPLOY PARTNERS
- 16. Microservices Design Design & Build with Swaggerhub Document Generate SDKs Collaborate on the Platform for Designing and Documenting APIs with Swagger Quick Hits: • Issue Tracking • Versioning • Integrate into popular tools and platforms like AWS, Azure, Github, & more. • Cloud Access or Install On-Prem Design new and existing APIs in an intuitive, browser-based Editor that’s built for rapid iteration of the Swagger/OpenAPI contract. Validate and save your design on the fly, with a hassle-free editing experience for designing APIs that maximize consumer adoption. SwaggerHub visually renders your API contract as a fully interactive document for live workability, letting your end consumers know exactly how your API will work and behave, before integrating it into their code. Build your API’s server and client code straight from your contract in over 30 different languages. The generated code packages are highly customizable with friendly instructions to quickly turn your API contract into functioning code. SwaggerHub
- 17. Microservices Prototype Deploy & Share Virtualize Virtualize with ServiceV Create and deploy virtualized APIs in minutes with ServiceV Quick Hits: • Record live REST or SOAP call • Import Swagger spec Quickly mock up and design an API by importing a Swagger spec and quickly define responses or use our powerful Wizard to start creating your API. SwaggerHub visually renders your API contract as a fully interactive document for live workability, letting your end consumers know exactly how your API will work and behave, before integrating it into their code. Replace 3rd Party, unstable, or other costly APIs in your E2E, Integration, and Performance testing process while still retaining testing accuracy. ServiceV
- 18. Microservices Functional Testing Data-Driven Testing Load Testing Test with ReadyAPI Create powerful API functional and load tests in the world’s most widely used testing platform. Quick Hits: • Test SOAP APIs • Test REST APIs • Data-Driven Testing • Security Scans • Load Testing Create functional API tests for your entire microservices infrastructure easier than ever. With SoapUI Pro, you can scan your Swagger specs or live endpoint to automatically generate test structures for them. Then easily refactor your tests when any of your APIs change. Connect to a database, csv, or generate your own test data within SoapUI Pro to seamlessly test your web services with actual data. You can drive names, passwords, credit cards numbers, etc. into your API to get the largest possible coverage. LoadUI Pro provides key insights that help you fix performance bottlenecks in your API under load. The tool tracks in-depth statistics and parameters on your APIs performance and presents these in an intuitive & actionable format. SoapUI Pro LoadUI Pro
- 19. Microservices Service Uptime Pre & Post Production Monitor with AlertSite Monitor web, desktop, or mobile applications as well as APIs Quick Hits: • Monitor REST & SOAP APIs AlertSite makes it easier than ever to monitor your internal, partner, or public APIs - REST or SOAP - effortlessly. Create an API endpoint monitor natively in AlertSite, or reuse OpenAPI/Swagger definitions and SoapUI tests to monitor complex API transactions. Monitor internal APIs that serve your internal customers from within your private network using our private nodes placed in your local network, data center, or private cloud. AlertSite
- 20. Page Proprietary & Confidential Page 20 Why SmartBear Wins Microservices Easy To Install & Use Affordable Pricing Open & Integrated Customer Success Reusability The Old Way The SmartBear Way Hard To Try & Start Expensive To POC & Buy Locked-Down Ecosystem Month-long Sale Cycles Offline Business Model
- 21. Page Proprietary & Confidential 21 Microservices The tools you use everyday. Made better with SmartBear.
- 22. Page Proprietary & Confidential 22 Microservices Reusability Across SmartBear Import Your Swagger Spec Into ReadyAPI Virtualize that Swagger Spec so developers, testers, and consumers have access to it Then reuse the same testing script across ReadyAPI for functional and performance testing, and monitoring. ServiceV SoapUI Pro AlertSite LoadUI Pro SwaggerHub
- 23. Page Proprietary & Confidential UI API Create Great Software, Without Tradeoffs Perform Code & Doc Review Collaborator Design, Develop, & Document APIs SwaggerHub DEV TEST OPS Code Create Automated UI Functional Tests (Web, Desktop, Mobile) TestComplete Script Run Tests On Real Devices in the Cloud CrossBrowserTesting Create Web Load Tests LoadComplete Spec Create Automated API Functional Tests (REST, SOAP, and more) SoapUI Pro Script Virtualize API & Database Services ServiceV Pro Create API Load Tests LoadUI Pro Monitor Web & API Performance, Availability, & Functional Correctness AlertSite Manage Manual & Automated Tests QAComplete Integrations …100 +
- 24. Page Proprietary & Confidential 24 Microservices Design Monitor Develop Test Deploy Swaggerhub Collaborator ServiceV Pro SoapUI Pro LoadUI Pro QAComplete AlertSite CrossBrowserTesting TestComplete LoadComplete The Future Of Quality
- 25. Page Proprietary & Confidential We provide tools for development, testing, and operations teams to create great software, faster than ever. AccelerateSDLCWorkflows | ImproveQualityatEveryStage | RealizeRapidTime-to-Value • European HQ in Galway, with 7 offices globally • Founded in 2009 • Open Source Innovator (Swagger & SoapUI) 6.5M+ Users 194 Countries 22K+ Companies TestComplete SoapUI Pro SwaggerHub CrossBrowserTesting QAComplete AlertSite Microservices 25
- 26. Page Proprietary & Confidential Loyal and Diverse Customer Base Accelerated Workflows Improved Quality Realized Rapid Time-to-Value Health Sciences Insurance Financial Travel /Hospitality Consumer Telecom Government /Defense Software Tech Achieved100%standardizationof OpenAPISpecacrossdevprojects Increasedreleasefrequencyby2xasa resultofimprovedtestautomation Realized>$30kincostssavingsby switching fromHP/MicroFocus
Editor's Notes
- Microservices is soon becoming the default standard for building continuously deployed systems in the DevOps world. In the simplest form, a Microservices architecture is an approach to building an application as a suite of small services, each running in its own process and are independently deployable. These services may be written in different languages and may use different data storage techniques. While this results in the development of systems that are scalable and flexible, it needs a dynamic makeover for the testing team. This necessitates that the testing team builds a deep architectural and design understanding and re-invent traditional test techniques.
- So to the WHY of Microservices, I’d point to the following – A Microservices approach can accelerate time to market. You can safely increment individual components without (necessarily) impacting other components. Granular changes are much easier to build and test, and these can deployed safely. Secondly, with a microservice architecture, scaling decisions can be made at a more granular level, allowing more efficient system optimization and organization. You can tailor where to apply resources based on the needs of a smaller, more granular component. Microservices make it easier to assign specific capabilities to individual teams so they can focus on the particular scaling and availability requirements of their system in-the-small, and have confidence that their decisions will have the appropriate impact at the larger scale. Complexity Localization. Microservice-based architectures allow thinking about services as black boxes. Owners of the service need to understand the complexity of only what is within their service. Other service owners need to know only what capabilities your service provides, without having to worry about how it works internally. This compartmentalization of knowledge and complexity can help you create and manage larger applications more effectively. And finally, since microservices are distinct entities unto themselves (accessible via APIs), they can be reused in other applications and systems without negatively impacting the original use case. This reusability allows improved leveraging and management.
- It’s time to talk a bit some of the challenges microservices teams face – specifically, in the challenges associated with growing system complexity, test automation, component availability, and system performance.
- So let’s say you’ve successfully componetized your application –going from one monolithic application to 10 discrete ones that interact with one another via APIs. One things that its easy to underestimate is the complexity of that interoperability and the exponential increase in communications. You need to know what services exist, what they do, and their dependencies. Without that, your system becomes fragile. (Tooling will take an increased importance here. Smartbear’s SwaggerHub can be an important facility to help document and manage dependencies.
- Test automation can be a huge challenge. It’s pretty simple, even with open source, to test on a single API. But let’s say you have 50 services that interoperate with a myriad of dependencies. What happens if we change service 14? How do we string together tests to automate that entire chain. So while individual services may be easier to understand and manage, the application as a whole has significantly more moving parts. Since there are more components and those components have more interconnections, the associations between components becomes a complex architectural problem in their own right.
- The market research firm Voke did study last year on virtualization, which I thought was spot on. What it points to are the staggering delays caused by lack of independence. You can fully test unless you have access to everything, and it takes 32 days on average to get access to the required systems. Virtualization is important for Microservices testing because the availability of components for testing is quite applicable here. Back to that example we used before: Let’s say you change service 14, and it has dependencies on services 11, 22, 33 and 45. Let’s also say that service 22 is a third party service you don’t control and that service 33 is in development. You need to be able to virtualize those services so that you can complete a valid test.
- And performance can be an Achilles heel. Performance engineering should be baked in to the development process – both at the individual service level and at the system test level. You’ve got to be able to model large scale utilization easily and economically. This starts with testing the performance of each individual Microservice and interconnected Microservices. As each Microservice operates in its own process space, with interconnected Microservices, performance degradation is inevitable due to a domino effect. Determining which service performance is not meeting service levels can become very tricky. The best way to build a safety net, particularly for a new implementation, is through continuous monitoring in production where an application that mimics users constantly checks the application for performance issues.
- -Cigna Increased release frequency by 2x as a result of improved test automation -Bonotel Achieved 100% standardization of OpenAPI Spec across dev projects -Dominos Realized > 50% cost savings by switching from HP/Micro Focus