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Automated CI/CD of Multiple Projects Using TeamCity’s Kotlin DSL

Actualités, Méthodes et organisation des process IT

In a previous article, I described a way to organize low-latency products as multiple code bases which are bound together with a Maven Bill of Materials (BOM). Understandably, this requires setting up continuous integration and deployment for a large number of similar projects. Maintaining such a setup manually in the face of change while ensuring its consistency will take a lot of effort. In this article, I will describe how the team at Chronicle Software has tackled these issues in different projects by writing code that does this for us, in the form of Kotlin DSL for TeamCity.

This guide will show how to configure the same set of CI/CD builds for multiple Maven project repositories of similar layouts programmatically, following the DRY (don’t repeat yourself) principle. Following it will require a base knowledge of git, Maven, and TeamCity but would not require knowledge of the Kotlin language, since all of the displayed code is self-explanatory.

Source de l’article sur DZONE

23 février 2022/par Service comm.

Feature Flags: A Gentle Introduction

Actualités, Méthodes et organisation des process IT

Think of a world where you don’t need a separate testing environment, where you can test everything in production and capture valuable data that helps you improve along the way. The secret ingredient: feature flags.

What Are Feature Flags?

Features flags is a software engineering technique that lets developers integrate code constantly into the main trunk. It involves shipping incomplete features into production, which remain dormant until ready. Feature flags also take part in software delivery; when the feature is complete, the code can be activated at the flick of a switch.

Source de l’article sur DZONE

12 janvier 2022/par Service comm.

How to Build Graal-Enabled JDK8 on CircleCI

Actualités, Méthodes et organisation des process IT

The GraalVM compiler is a replacement to HotSpot’s server-side JIT compiler, widely known as the C2 compiler. It is written in Java with the goal of better performance compared to the C2 compiler. New changes, starting with Java 9, mean that we can now plug in our own hand-written C2 compiler into the JVM thanks to JVMCI. The researchers and engineers at Oracle Labs have created a variant of JDK8 with JVMCI enabled, which can be used to build the GraalVM compiler. The GraalVM compiler is open source and is available on GitHub (along with the HotSpot JVMCI sources needed to build the GraalVM compiler). This gives us the ability to fork/clone it and build our own version of the GraalVM compiler.

In this post, we are going to build the GraalVM compiler with JDK8 on CircleCI. The resulting artifacts are going to be:

Source de l’article sur DZONE

6 septembre 2019/par Service comm.

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