Blockchain, Heavy Metal and Testcontainers
An airhacks.fm conversation with Kevin Wittek (@kiview) about: typing with 3 on a terminal, 486 for playing DOS games, radio controlled cars for fathers, RC car races with transponders, worldcup in beijing, hawaii, las vegas, tamiya, kyosho, professional competition RC cars by Mugen Seiki, playing civilization-like game, switching from PCs to console gaming, starting with Quick Basic programming at highschool, writing text adventures with Quick Basic and huge if-else blocks, advent calendar with Quick Basic, switching from Quick Basic to Java 1.4, a coffee lover without aeropress, aeropress and aerospace technology, aerobie frizbies, teaching polymorphic dispatches at highschool, who cares about object orientation, bluej programming learning environment, the great scratch IDE, manipulating the ASCII characters might not be the future, sometimes it is better to manipulate the Abstract Syntax Tree (AST) directly, writing a ZIP-compressor in Java, studying in Gelsenkirchen-the Java-focussed university, writing Android software for Museums, Museums don't have money, writing fraud detection services for GData, banking trojan detection was really successful, leading the blockchain research group, having a dream job, lazy loading the PhD topic, assessing the non-functional aspects of a blockchain system, why Groovy is a pragmatic language, Groovy started as an ergonomic version of Java, playing e-guitar at a heavy metal band "Iron Kobra", Rush, Deep Purple, Led Zeppelin, and a bit Metallica, one of the best guitar players is Uli Jon Roth from the German Scorpions band, starting to play guitar with 16, starting with TNT from AC/DC, software engineering is like playing blues, the SoCraTes Conference, the JUnit 5 extension for Docker, the beginnings as TestContainers committer, Richard North was the initiator of the TestContainers project, TestContainers started in a blockchain-related project, TestContainers project was written in Java from the beginning, TestContainers started with JUnit 4 integration, the TestContainers project has actually nothing todo with testing, ephemeral container concept is built-in into the testcontainers, the docker container is going to be removed after the JVM exits, ryuk is a side container which watches the actual container, when the JVM stops sending the heartbeat - ryuk will remove the container, GraalVM might replace Go in the sidecontainer, testcontainers gives strong guarantees about readiness, testcontainer ships with multiple probes / wait strategies: log-based wait strategy, port-based wait strategy, docker health-check strategy, testcontainers ships with container communication API, in the case of a database testcontainer will provide a JDBC-URL, testcontainer can is able to start DB on demand by using the JDBC driver, testcontainer also works with remote Docker daemons, testcontainer is using the REST interface to communicate with Docker, the switch from Netty to OkHTTP, testcontainers relies on Docker Java, hardcoding functionality in a project is the right choice at the beginning, testcontainers has to be refactored into two parts, testcontainer's 2.0 goal are distinct APIs for testing and container orchestration, windows support was a challenge, testcontainers supports windows, linux and MacOS, the testcontainers team is using Macs for local development, azure pipelines is used to test windows, Kevin Wittek on twitter: @kiview, on github https://github.com/kiview and Kevin's blog.