Deploy With Confidence

•

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In a monolithic application, different services are developed within same project side by side. In these kind of applications you don't need to worry about breaking the compatibility between contract interfaces since there is an invisible verifier called compiler that checks that all method calls follows the defined signature. But in case of microservices, different services are deployed in different runtimes and using different separated networks. In this scenario, any change on the contract of one service cannot be caught by the compiler since there is no typesafe connection between services.. Now breaking the compatibility between services can be really easy and hard to detect (maybe until your new version of the service is on production). In this talk we are going to explore why deploying a new version of a service might break everything in microservices architecture, and how to fix with consumer-driven contracts pattern.

Deploy Microservices with Conﬁdence
@alexsotob

@alexsotob2
Alex Soto
Red Hat Engineer
www.lordofthejars.com
@alexsotob
Who Am I?

@alexsotob3
https://www.manning.com/books/testing-java-microservices

@alexsotob5
Any resemblance to reality is pure coincidence

@alexsotob @AndyGeeDe6
Micro Services architecture

@alexsotob7
Villains Database Application
Villains Crimes
Give Me Crimes of GruGive Me Information of Gru

@alexsotob8
Villains Database Application
Consumer Producer
GET /crimes/Gru
[{
"name": "Moon",
"villain": "Gru",
"wiki": "/wiki/Moon"
}]
GET /villains/Gru
"name": “Gru”,
"areaOfInﬂuence": "World"
"crimes": [{
"name": "Moon",
"wiki": "/wiki/Moon"
}]

@alexsotob @AndyGeeDe9
Let’s Go to Production

@alexsotob10
Destroying
Production Deployment

@alexsotob @AndyGeeDe11
Shit! We break Production Environment

@alexsotob
Advantages Disadvantages
Unit Tests (and Mocks)
14
Cheap
No setup of environment
Fast
Mocks
Reliable
All local, no ﬂaky
Not Trustworthy
How you understand the system
Targeted
You know where it failed

@alexsotob
Advantages Disadvantages
Integration Tests
16
Trustworthy
They are real
Not Reliable
May fail for any external reason
Slow
Boot service and dependencies
Become e2e
You easily end up with e2e tests

@alexsotob
> Provider Contracts
provider centric, consumers adapts all or nothing
> Consumer Contracts
individual consumer’s needs
> Consumer-driven Contracts
representation of a provider's obligations to all its consumers
Ownership
Different Approaches
20

@alexsotob21
Consumer Side
Stub Server
Consumer
Test
Expectations
GET /crimes/Gru
[{"name":...]}
Sharing

Provider Side
Sharing
Test
Provider
GET /crimes/Gru
[{"name":...]}

@alexsotob23
Contract Tests Testing Frameworks
Consumer Driven Contracts

@alexsotob24
> Pact Foundation
Pact speciﬁcation v3
> Integration with several languages
JVM, Ruby, Python, Go, .Net, Swift, JS
> Pact Broker
Sharing contracts, API documentation, Overview of services
> Arquillian Algeron
Arquillian ecosystem + Pact, Publishers/Retrievers, JBoss Forge

@alexsotob
> Execute Build
Publish contracts as artefact version
> Run Head Provider Contract Tests
Check contract compatibility against version contract
> Run Prod Provider Contract Tests
Check contract compatibility against version contract
> Release Consumer
Tag contract with environment name
Deploying Consumer
Steps on CI (Commit Stage)
27

@alexsotob
> Execute Build
Run as usual
> Run Provider Contract Tests
Check contract compatibility against latest contract
> Run Prod Provider Contract Tests
Check contract compatibility against environment contract
> Release Provider
Deploying Provider
Steps on CI (Commit Stage)
28

@alexsotob29
Automate Everything
Enjoy your Vacations

@alexsotob
Conclusions
31
> End To End Tests
Late feedback
Expensive change
Difﬁcult to orchestrate
> Consumer Driven Contracts
Fail fast
Independent deployments
Improve communication

More Info
https://github.com/arquillian-testing-microservices/
https://www.manning.com/books/testing-java-microservices
@alexsotob

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Have you ever thought how to deploy Cloud Native Java Applications (Spring Boot) on Kubernetes? Kubernetes has now become a de-facto standard for deploying Cloud Native Applications, but still there is myth that they are not ready for Java workloads. The aim of this session is to break that myth to show Kubernetes is well suited for Cloud Native Java applications. The session explores the cloud native characteristics such as Discovery, Blue/Green Deployments, Elasticity, Canary Deployments, Resiliency, Pipeline(CI/CD), Authentication etc., becomes implicit characteristics to your Spring Boot Java applications that are deployed on Kubernetes In this session, we will see how to build, debug, deploy and discover Spring Boot applications on Kubernetes, covering in depth details of the tools, libraries and platform that could be used to make your spring boot deployment smooth and easy.

10 Testing libraries any Java developer should know

Alex Soto

TEST SMARTER AND GAIN SOME TIME BACK

Alex Soto

“A programmer is an organism capable of converting coffee into code.” The best excuse for a 5-minute coffee break used to be “my code is compiling,” and these days we have “my tests are running.” It's a huge waste of developer time and continuous integration resources to have such long-running tests. But what’s even more important, it slows down development and deployment velocity, resulting in slower time to market and greater lead times. Join this session for a smart solution to this problem. We’ll show you how a new Java™ tool can drastically reduce your test execution time, letting you stay in the zone and increasing your personal productivity and velocity. Caveat: You may have to find a different excuse to get coffee.

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The OpenMetadata Community Meeting was held on June 5th, 2024. In this meeting, we discussed about the data quality capabilities that are integrated with the Incident Manager, providing a complete solution to handle your data observability needs. Watch the end-to-end demo of the data quality features. * How to run your own data quality framework * What is the performance impact of running data quality frameworks * How to run the test cases in your own ETL pipelines * How the Incident Manager is integrated * Get notified with alerts when test cases fail Watch the meeting recording here - https://www.youtube.com/watch?v=UbNOje0kf6E

A Study of Variable-Role-based Feature Enrichment in Neural Models of Code

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Understanding variable roles in code has been found to be helpful by students in learning programming -- could variable roles help deep neural models in performing coding tasks? We do an exploratory study. - These are slides of the talk given at InteNSE'23: The 1st International Workshop on Interpretability and Robustness in Neural Software Engineering, co-located with the 45th International Conference on Software Engineering, ICSE 2023, Melbourne Australia

Launch Your Streaming Platforms in Minutes

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The claim of launching a streaming platform in minutes might be a bit of an exaggeration, but there are services that can significantly streamline the process. Here's a breakdown: Pros of Speedy Streaming Platform Launch Services: No coding required: These services often use drag-and-drop interfaces or pre-built templates, eliminating the need for programming knowledge. Faster setup: Compared to building from scratch, these platforms can get you up and running much quicker. All-in-one solutions: Many services offer features like content management systems (CMS), video players, and monetization tools, reducing the need for multiple integrations. Things to Consider: Limited customization: These platforms may offer less flexibility in design and functionality compared to custom-built solutions. Scalability: As your audience grows, you might need to upgrade to a more robust platform or encounter limitations with the "quick launch" option. Features: Carefully evaluate which features are included and if they meet your specific needs (e.g., live streaming, subscription options). Examples of Services for Launching Streaming Platforms: Muvi [muvi com] Uscreen [usencreen tv] Alternatives to Consider: Existing Streaming platforms: Platforms like YouTube or Twitch might be suitable for basic streaming needs, though monetization options might be limited. Custom Development: While more time-consuming, custom development offers the most control and flexibility for your platform. Overall, launching a streaming platform in minutes might not be entirely realistic, but these services can significantly speed up the process compared to building from scratch. Carefully consider your needs and budget when choosing the best option for you.

Introducing Crescat - Event Management Software for Venues, Festivals and Eve...

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Crescat is industry-trusted event management software, built by event professionals for event professionals. Founded in 2017, we have three key products tailored for the live event industry. Crescat Event for concert promoters and event agencies. Crescat Venue for music venues, conference centers, wedding venues, concert halls and more. And Crescat Festival for festivals, conferences and complex events. With a wide range of popular features such as event scheduling, shift management, volunteer and crew coordination, artist booking and much more, Crescat is designed for customisation and ease-of-use. Over 125,000 events have been planned in Crescat and with hundreds of customers of all shapes and sizes, from boutique event agencies through to international concert promoters, Crescat is rigged for success. What's more, we highly value feedback from our users and we are constantly improving our software with updates, new features and improvements. If you plan events, run a venue or produce festivals and you're looking for ways to make your life easier, then we have a solution for you. Try our software for free or schedule a no-obligation demo with one of our product specialists today at crescat.io

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Essentials of Automations: The Art of Triggers and Actions in FME

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In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation. We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios. Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!

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AI Genie Review: World’s First Open AI WordPress Website Creator

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AI Genie Review: World’s First Open AI WordPress Website Creator 👉👉 Click Here To Get More Info 👇👇 https://sumonreview.com/ai-genie-review AI Genie Review: Key Features ✅Creates Limitless Real-Time Unique Content, auto-publishing Posts, Pages & Images directly from Chat GPT & Open AI on WordPress in any Niche ✅First & Only Google Bard Approved Software That Publishes 100% Original, SEO Friendly Content using Open AI ✅Publish Automated Posts and Pages using AI Genie directly on Your website ✅50 DFY Websites Included Without Adding Any Images, Content Or Doing Anything Yourself ✅Integrated Chat GPT Bot gives Instant Answers on Your Website to Visitors ✅Just Enter the title, and your Content for Pages and Posts will be ready on your website ✅Automatically insert visually appealing images into posts based on keywords and titles. ✅Choose the temperature of the content and control its randomness. ✅Control the length of the content to be generated. ✅Never Worry About Paying Huge Money Monthly To Top Content Creation Platforms ✅100% Easy-to-Use, Newbie-Friendly Technology ✅30-Days Money-Back Guarantee See My Other Reviews Article: (1) TubeTrivia AI Review: https://sumonreview.com/tubetrivia-ai-review (2) SocioWave Review: https://sumonreview.com/sociowave-review (3) AI Partner & Profit Review: https://sumonreview.com/ai-partner-profit-review (4) AI Ebook Suite Review: https://sumonreview.com/ai-ebook-suite-review #AIGenieApp #AIGenieBonus #AIGenieBonuses #AIGenieDemo #AIGenieDownload #AIGenieLegit #AIGenieLiveDemo #AIGenieOTO #AIGeniePreview #AIGenieReview #AIGenieReviewandBonus #AIGenieScamorLegit #AIGenieSoftware #AIGenieUpgrades #AIGenieUpsells #HowDoesAlGenie #HowtoBuyAIGenie #HowtoMakeMoneywithAIGenie #MakeMoneyOnline #MakeMoneywithAIGenie

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Empowering Growth with Best Software Development Company in Noida - Deuglo

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Do you want Software for your Business? Visit Deuglo Deuglo has top Software Developers in India. They are experts in software development and help design and create custom Software solutions. Deuglo follows seven steps methods for delivering their services to their customers. They called it the Software development life cycle process (SDLC). Requirement — Collecting the Requirements is the first Phase in the SSLC process. Feasibility Study — after completing the requirement process they move to the design phase. Design — in this phase, they start designing the software. Coding — when designing is completed, the developers start coding for the software. Testing — in this phase when the coding of the software is done the testing team will start testing. Installation — after completion of testing, the application opens to the live server and launches! Maintenance — after completing the software development, customers start using the software.

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Utilocate offers a comprehensive solution for locate ticket management by automating and streamlining the entire process. By integrating with Geospatial Information Systems (GIS), it provides accurate mapping and visualization of utility locations, enhancing decision-making and reducing the risk of errors. The system's advanced data analytics tools help identify trends, predict potential issues, and optimize resource allocation, making the locate ticket management process smarter and more efficient. Additionally, automated ticket management ensures consistency and reduces human error, while real-time notifications keep all relevant personnel informed and ready to respond promptly. The system's ability to streamline workflows and automate ticket routing significantly reduces the time taken to process each ticket, making the process faster and more efficient. Mobile access allows field technicians to update ticket information on the go, ensuring that the latest information is always available and accelerating the locate process. Overall, Utilocate not only enhances the efficiency and accuracy of locate ticket management but also improves safety by minimizing the risk of utility damage through precise and timely locates.

Enterprise Resource Planning System in Telangana

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Enterprise Resource Planning System includes various modules that reduce any business's workload. Additionally, it organizes the workflows, which drives towards enhancing productivity. Here are a detailed explanation of the ERP modules. Going through the points will help you understand how the software is changing the work dynamics. To know more details here: https://blogs.nyggs.com/nyggs/enterprise-resource-planning-erp-system-modules/

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Deploy With Confidence

1. Deploy Microservices with Conﬁdence @alexsotob

2. @alexsotob2 Alex Soto Red Hat Engineer www.lordofthejars.com @alexsotob Who Am I?

3. @alexsotob3 https://www.manning.com/books/testing-java-microservices

4. @alexsotob4 Questions

5. @alexsotob5 Any resemblance to reality is pure coincidence

6. @alexsotob @AndyGeeDe6 Micro Services architecture

7. @alexsotob7 Villains Database Application Villains Crimes Give Me Crimes of GruGive Me Information of Gru

8. @alexsotob8 Villains Database Application Consumer Producer GET /crimes/Gru [{ "name": "Moon", "villain": "Gru", "wiki": "/wiki/Moon" }] GET /villains/Gru "name": “Gru”, "areaOfInﬂuence": "World" "crimes": [{ "name": "Moon", "wiki": "/wiki/Moon" }]

9. @alexsotob @AndyGeeDe9 Let’s Go to Production

10. @alexsotob10 Destroying Production Deployment

11. @alexsotob @AndyGeeDe11 Shit! We break Production Environment

12. @alexsotob12

13. @alexsotob13 Unit Tests and Mock

14. @alexsotob Advantages Disadvantages Unit Tests (and Mocks) 14 Cheap No setup of environment Fast Mocks Reliable All local, no ﬂaky Not Trustworthy How you understand the system Targeted You know where it failed

15. @alexsotob15 Integration Tests

16. @alexsotob Advantages Disadvantages Integration Tests 16 Trustworthy They are real Not Reliable May fail for any external reason Slow Boot service and dependencies Become e2e You easily end up with e2e tests

17. @alexsotob17 Manual Tests

18. @alexsotob18 Contract Tests

19. @alexsotob19 Ownership of the Contracts

20. @alexsotob > Provider Contracts provider centric, consumers adapts all or nothing > Consumer Contracts individual consumer’s needs > Consumer-driven Contracts representation of a provider's obligations to all its consumers Ownership Different Approaches 20

21. @alexsotob21 Consumer Side Stub Server Consumer Test Expectations GET /crimes/Gru [{"name":...]} Sharing

22. Provider Side Sharing Test Provider GET /crimes/Gru [{"name":...]}

23. @alexsotob23 Contract Tests Testing Frameworks Consumer Driven Contracts

24. @alexsotob24 > Pact Foundation Pact speciﬁcation v3 > Integration with several languages JVM, Ruby, Python, Go, .Net, Swift, JS > Pact Broker Sharing contracts, API documentation, Overview of services > Arquillian Algeron Arquillian ecosystem + Pact, Publishers/Retrievers, JBoss Forge

25. @alexsotob25 Building With Certainty

26. @alexsotob26 Deploy with Certainty

27. @alexsotob > Execute Build Publish contracts as artefact version > Run Head Provider Contract Tests Check contract compatibility against version contract > Run Prod Provider Contract Tests Check contract compatibility against version contract > Release Consumer Tag contract with environment name Deploying Consumer Steps on CI (Commit Stage) 27

28. @alexsotob > Execute Build Run as usual > Run Provider Contract Tests Check contract compatibility against latest contract > Run Prod Provider Contract Tests Check contract compatibility against environment contract > Release Provider Deploying Provider Steps on CI (Commit Stage) 28

29. @alexsotob29 Automate Everything Enjoy your Vacations

30. @alexsotob30 Let’s Wind Down

31. @alexsotob Conclusions 31 > End To End Tests Late feedback Expensive change Difﬁcult to orchestrate > Consumer Driven Contracts Fail fast Independent deployments Improve communication

32. More Info https://github.com/arquillian-testing-microservices/ https://www.manning.com/books/testing-java-microservices @alexsotob

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