JCON ONLINE 2022

In this talk, we will dive into how AWS CDK helps us developers take advantage of the full power of modern programming languages to not only define IaC, but to build reusable components that can be shared across teams. We will review the changes to AWS CDK recently introduced through version 2, and use established Serverless patterns to illustrate CDK's concepts through some fun live coding in the Java programming language.

In this talk I will compare 2 services which aim at automatically identifing critical issues, security vulnerabilities, and hard-to-find bugs during application development: Amazon CodeGuru and SonarQube from the perspective of the Java developer on AWS. Amazon CodeGuru Reviewer uses ML and automated reasoning to provide recommendations to developers on how to fix issues to improve code quality and dramatically reduce the time it takes to fix bugs before they reach customer-facing applications and result in a bad experience. SonarQube is an open-source platform for continuous inspection of code quality to perform automatic reviews with static analysis of code to detect bugs, code smells, and security vulnerabilities on 20+ programming languages. SonarQube offers reports on duplicated code, coding standards, unit tests, code coverage, code complexity, comments, bugs, and security vulnerabilities

System availability and performance are not stand-alone goals hence non-availability and under-performance of applications and systems in IT landscape will negatively affect user experience and customer satisfaction causing revenue losses for organizations. In a complex, multi-layered, distributed computing environment with so many interdependencies that is impossible to keep track of, full-stack observability enables organizations to find needle in the haystack, by identifying and responding to systems issues before they affect customers. Observability provides multiple stakeholders with actionable insights into the complex, multi-layered, distributed IT infrastructure and is a capability of modern enterprises. Observability enables end-to-end data visibility across multi-layered IT architecture simplifying root cause analysis. DevOps and SRE teams can quickly identify and resolve issues no matter where they originate or at what point in the software lifecycle they emerge. This talk will provide you with an understanding of methods, processes and tools that can leveraged for an enterprise scale observability platform.

Infrastructure as Code (IaC) isn’t a new notion, but it still confuses today. While most large enterprises are in the process of adopting IaC, as they move their workloads to the cloud, only a few have managed to implement it effectively. IaC had evolved significantly from its early beginnings when the infrastructure surface was only the operating system, and “Puppet vs. Chef” was a familiar debate. Today, operating systems often constitute a legacy abstraction, superseded by containers, Function as a Service (FaaS)-based applications, and sophisticated managed services, In this session; you'll learn about state of the art in IaC and DevOps today and the factors you must take into account for a successful implementation.

Die DevOps-Bewegung versucht, Silos zwischen Entwicklung und Betrieb aufzubrechen und durch eine intensive Kollaboration zu ersetzen. Etliche Unternehmen sind intern auf dieser Reise weit gekommen und haben sich mehr und mehr DevOps-Praktiken angeeignet. Sobald sie jedoch externe IT-Lieferanten beauftragen, entstehen oft wieder die alten Silos: Die Lösung wird vom Lieferanten gebaut und nach der Übergabe vom Kunden betrieben. Dabei muss das nicht so sein. Auch externe IT-Lieferanten können gemäß der DevOps-Philosophie mit ihren Kunden (zusammen-) arbeiten. Konstantin zeigt euch in seinem TechTalk einige Muster und praktische Beispiele dafür.

Let's grap the IDE for some live coding: "We're going to transform a Spring Boot application build in Java to Kotlin!" Moving a simple application is relative easy, but if you're dealing with a large code base, it can be a little tricky. What are the strategies to move? You can perhaps move by module or by layer, but there are many other ways. And how can you convince the business or even architects to create your code in Kotlin? These are the first steps you need to take before even touching your application. And then? Yes, the fun begins! We will do some significant improvements in our code like: - Using scoped functions against nullability. - Replacing for loops, if statements and switch occurrences to make our code readable! - Rewriting asynchronous code blocks with coroutines! - Converting JPA classes Join the Kotlin movement!

DevOps is great, if you have the people, processes and tools to support it. In this session I’ll highlight the easiest ways for Java developers to work with their IT organizations and partners to deliver their code to the cloud, including the best ways to reliably make updates and maintain production cloud code. The focus is on real-world examples using Linux command line tools, open source tools, and other free SDKs and tools available on GitHub.