Amsterdam

March 21-22

B. Amsterdam
Johan Huizingalaan 763a, 1066 VH
Amsterdam, Netherlands


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Agenda Day 1

8:00am

Breakfast

8:45am

Welcome

9:10am

Better Software is Better than Worse Software

Michael Coté, Technical Marketer, Pivotal

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“Digital transformation” seems like idle business fantasy. But, it’s a real strategy used by the US Air Force, Air France KLM, Liberty Mutual, DBS Bank, and others to out-innovate competition & delight people. We will go over how Pivotal customers like these are improving their software, how Pivotal Cloud Foundry lays the foundation for better software helps, and how you can be a part of making the world a better place with better software.

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9:40am

Event-Driven Architecture Traps

Jakub Pilimon, Principal Technologist, Pivotal

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Event-driven architectures (EDA) have become more popular by the day. Organizations see a great value in them, and developers love how EDA help to grow, scale, and mirror what really happens in the business domain.However, most developers are not familiar with this kind of architecture, which can lead to common pitfalls that we’ll examine in this talk. We’ll also cover a broad set of concepts like: exactly-once delivery (is that event a thing?), GDPR, CQRS, and tackle the problem of how to version our events.

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10:30am

Break

11:00am

Consumer Driven Contracts like TDD to the API

Olga Maciaszek-Sharma, Software Engineer, Pivotal
Marcin Grzejszczak, Staff Software Engineer, Pivotal

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Consumer driven contracts (CDC) are like TDD applied to the API. It’s especially important in the world of microservices. Since it’s driven by consumers, it’s much more user friendly. Of course microservices are really cool, but most people do not take into consideration plenty of potential obstacles that should be tackled. Then instead of frequent, fully automated deploys via a delivery pipeline, you might end up in an asylum due to frequent mental breakdowns caused by production disasters. We will write a system using the CDC approach together with Spring Boot, Spring Cloud Contract verifier. I’ll show you how easy it is to write applications that have a consumer driven API and that will allow a developer to speed up the time of writing his better quality software. The presentation will consist of some theory but there’ll also be live coding and demos.

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12:00pm

DDD and Microservices: Like Peanut Butter and Jelly

Matt Stine, Cloud-Native Polymath and Product Owner, Pivotal

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As an architectural style, microservices are here to stay. They have crossed the proverbial chasm, and now it’s time to get to work. Microservices provide us with the ability to create truly evolutionary architectures composed of cohesive and autonomous components using well known and characterized distributed systems patterns. As an architectural style, microservices are here to stay. They have crossed the proverbial chasm, and now it’s time to get to work. Microservices provide us with the ability to create truly evolutionary architectures composed of cohesive and autonomous components using well known and characterized distributed systems patterns. As we create and compose components across the hard boundary of the network, we become deeply interested in establishing the correct boundaries and has resulted in renewed interest in system design and decomposition. Fortunately, the tried and true practices of Domain-Driven Design are available to us. In this presentation, we will cover a distillation of strategic (bounded contexts, subdomains, context mapping) and tactical (aggregates, domain events) DDD techniques and demonstrate how they enable us to create effective event-driven microservices.

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1:00pm

Lunch

2:00pm

Pivotal Conversations

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Pivotal Conversations is loosely based in the open space meeting format, meaning it is based on (un)common sense of what people do naturally in productive meetings. Pivotal Conversations is a simple meeting format where attendees will break into smaller groups and have candid conversations about topics that our speakers have composed, based on the talks they gave earlier in the day. Each 45-minute session will have a casual format where attendees can feel comfortable discussing anything they want to know more about. Although these conversations are facilitated by our speakers, attendees should really be the ones leading the conversations.

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5:00pm

Networking & Social

Bureau (Johan Huizingalaan 763A) View map

7:00pm

Day Ends



Agenda Day 2

8:00am

Breakfast

8:45am

Welcome

9:00am

Thinking Architecturally

Nate Schutta, Solution Architect, Pivotal

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Rich Hickey once said programmers know the benefits of everything and the trade offs of nothing...an approach that can lead a project down a path of frustrated developers and unhappy customers. As architects though, we must consider the trade offs of every new library, language, pattern or approach and quickly make decisions often with incomplete information. How should we think about the inevitable technology choices we have to make on a project? How do we balance competing agendas? How do we keep our team happy and excited without chasing every new thing that someone finds on the inner webs? As architects it is our responsibility to effectively guide our teams on the technology journey. In this talk I will outline the importance of trade offs, how we can analyze new technologies and how we can effectively capture the inevitable architectural decisions we will make. I will also explore the value of fitness functions as a way of ensuring the decisions we make are actually reflected in the code base.

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9:55am

Deploying Applications Using Pivotal Cloud Foundry

Lars Rosenquist, Platform Architect, Pivotal
David Caron, Senior Platform Architect, Pivotal

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In an enterprise organisation it can be hard to get software into production. And when it’s finally running it’s often with regular downtime due to the upgrading and patching of systems your applications are depending on. But it doesn’t have to be this way! This session will demonstrate how you can get your (Spring Boot) applications into production the fastest, whenever you want, with zero downtime and without compromising stability, while increasing scalability and security at the same time.

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10:45am

Break

11:15am

Kube Your Enthusiasm

Paul Czarkowski, Principal Technologist, Pivotal

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Part talk, part demo, part live coding. We will take the audience through the basics of Kubernetes and then turn to the audience to go go down a Kube Your Own Adventure exploration of a number of different Kubernetes related topics such as Spring Cloud Kubernetes, Helm, Spinnaker, Knative, Operators, and so much more!

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12:05pm

Real-time Analysis of Data Processing Pipelines with Spring Cloud Data Flow and Micrometer

Christian Tzolov, Software Craftsman, Pivotal

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Developing, testing, and orchestrating distributed data microservices could be a challenging task. The ability to analyze the performance of those systems in real-time is critical for ensuring the consistency and the correctness of the data they process. Therefore the ability to collect, observe and analyze, key performance metrics in real-time is an essential requirement for their enterprise readiness. No single tool can satisfy all the monitoring requirements. Reasoning through all the different tools and its features could be yet another challenging task. Thanks to Micrometer, though, we have a consistent model to write structured information about app metrics to a variety of Application Performance Management (APM) tooling. Spring Cloud Data Flow (SCDF) provides a turnkey solution for orchestrating distributed, Stream and Task processing pipelines, metrics curation, and visualization. The goal of this hands-on talk is to demonstrate the ease of extending SCDF’s built-in metrics capabilities to a monitoring system of your choice. With practical code examples we will demonstrate how to use various Time Series Databases (TSD) and metrics visualizations tools. You will learn how Micrometer helps to consistently produce structured metrics to InfluxDB and Prometheus and to visualize them with dashboards such as Grafana. Furthermore, we will explore how SCDF helps to orchestrate Stream and Task processing pipelines with rich metrics onto Cloud Foundry and Kubernetes.

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1:00pm

Lunch

2:00pm

How Fast is Spring?

Dave Syer, Senior Consulting Engineer, Pivotal

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These days everyone wants to run more with less, and if your app consumes too many resources on PAS/PKS/PFS then it's easy to point fingers at the runtime stack. In this presentation we take stock of some of the myths and assumptions regarding the runtime costs of using Spring. The conclusion is that preconceptions about slowness, component scanning, autoconfiguration, binding, use of reflection are all completely wrong. We look at data from a large set of benchmarks, analysing the performance of Spring applications. We concentrate on JVM startup time, but data are also available regarding total resource usage, and other runtime overheads. Spring is not slow, despite many people's preconceptions, but measuring the performance can bring useful optimizations, some of which we will point out in this session. Finally, we can go deeper than that and show what kinds of apps are slower to start and why.

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2:50pm

Break

3:15pm

Bootiful Reactive Testing

Mario Gray, Principal Technologist, Pivotal

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Join us for an exploration of testing a reactive Spring Boot 2.x application. Test driven development gives us the confidence necessary to improve our code faster, safely. But how do you test components and services, as well as integrations across distributed systems, while maintaining fast feedback loops, and how do you do all of this within the context of reactive Java? In this talk, we'll look at how to test imperative components, reactive data flows, and mocks. We’ll examine how to take advantage of test slices, and how to test web applications. We'll look at how to ensure that API producers and consumers work well together using consumer driven contract testing without sacrificing the testing pyramid for end-to-end integration tests. And we’ll do it all within the context of reactive programming.

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4:05pm

The Reactive Revolution

Josh Long, Spring Developer Advocate, Pivotal

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The reactive revolution continues. For as much as we've been talking about reactive programming in Spring for the last few years the journey has only just begun. Join Josh Long, and we'll take our reactive applications further, looking at how to build microservices for cloud platforms like PAS (Cloud Foundry) and PKS (Kubernetes). Some of the things we may cover include: - reactive NoSQL data access - reactive SQL data access with R2DBC - orchestration and reliability patterns like client-side loadbalancing, circuit breakers, and hedging - messaging and service integration with Apache Kafka or RSocket - API gateways with Spring Cloud Gateway and patterns like rate limiting - API adapters - serverless programming with Spring Cloud Function and project Riff - reactive authentication and authorization with Spring Security.

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4:55pm

Day Ends