Posts on Software Development and IT Operations

Micrometer Logo

Monitoring with Micrometer

I’ve finally managed to publish the recording of my Micrometer talk at the JavaLand conference from March this year.

Read on to find slides, video (35 min) and upcoming talks on this topic.

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Book: Java by Comparison

Making the “Switch” for documentation

How are you handling documentation in your software project? Who is writing it, and is it up-to-date?

After reading the book “Switch - how to change things when change is hard” (by Chip and Dan Heath) I followed their advice and collect previous experience and new ideas how to make documentation work.

(15 minutes read)

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Writers Write @ Devoxx UK

“Writers Write” at Devoxx UK 2019

Devoxx UK 2019 hosted a documentation birds-of-a-feature (BOF) session: Dan Allen lead this session called “Writers Write!”, with Ixchel Riuz and Alexander Schwartz (me) being co-leads.

This is a write-up of the discussions and experiences we shared as a group. It takes a look at tools, challenges and trends in documentation.

(10 minutes read)

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ArchUnit Logo

Stopping Entropy with ArchUnit

So your team has agreed on naming conventions for classes and how to structure classes in packages. Last week you found out that a specific class is error prone to use. Writing this down in a Wiki will not allow for automatic checks. Tools that produce dashboards look nice at first sight, but will fall into oblivion soon.

My talk at Devoxx UK shows how to automate architecture rules and best practices as ArchUnit tests. It will compare ArchUnit with other tools to show limits and advantages of this approach.

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The platform team supports multiple product teams.

DevOps: Fast, reliable and safe delivery

At the beginning of the century Nicolas Carr claimed that “IT doesn’t matter”. But today software delivers the services and products we consume, and every improvement requires changes to the software. Companies strive to test their new ideas faster and more reliable than their competitors. To do this, a company needs to re-invent its organisation, technology and culture for DevOps.

In our article in Informatik Spektrum Björn and me summarize who needs DevOps, how it works. We also detail the challenges and benefits.

(15 minutes read)

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Book: Made To Stick

Book Review: Made to Stick

When you write, write for your readers, they say. But will your readers remember it? Will they even read the article to its end?

Chip Heath and Dan Heath answer the question why some ideas survive and others die, i. e. why they are being remembered or forgotten.

(5 minutes read)

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CDN for simplicity

Hosting simplified by a CDN

Last year I moved my personal website and our Meetup’s homepage to Netlify, a content delivery network (CDN). I was astounded about the minimal steps necessary make it work. It simplified both the setup and the day-to-day operations for me.

This article takes you through the minimal, yet real world steps to set up the homepage of the Vue.js Frankfurt Meetup with Netlify.

(15 minutes read)

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Nuxt for fast websites

Nuxt: Making your website fast

You are looking for short loading times and high interactivity for your website? Nuxt got you covered: A JavaScript framework that serves a pre-rendered page for a fast first meaningful paint and then transforms the page into a full interactive single page

This post shows how to make Nuxt even faster with the webpack plugins imagemin, responsive-loader and postcss to minify images and CSS.

(10 minutes read)

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Book: The Tangled Web. A Guide to Securing Modern Web Applications.

Book Review: The Tangled Web

A good friend and colleague lent me this book.

Although the title “The Tangled Web” gave a different idea, the subtitle “A Guide to Securing Modern Web Applications” pointed to its security background.

It turned out to be a dive into the history and workarounds of the web!

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Observability Logo

Observability for Microservices

To be able to identify and analyse problems, applications in a microservice environment need to provide standardized information to enable efficient operations. This talk presents four areas that are part of observability: status information, logs, metrics, and traces.

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Book: Java by Comparison

Book Review: Java by Comparison

The full title reads “Java by Comparison - Become a Java Craftsman in 70 Examples”.

When I first heard of the book I was sceptical: Is there really enough common ground for 70 good code examples? Would the examples be the starting point of an argument if you would show them to a team of programmers? After a conference in Berlin, Simon offered me a free copy to read.

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Dotfiles for crossplatform projects

Whenever I start a new project, I like to check in configurations to Git, so that every other developer uses the same settings as I did. This also leads to more reproducible build.

This post summarizes the different files and their interdependencies.

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Asciidoctor Logo

Asciidoctor Deep Dive

Asciidoc is a markup language for documentation. Asciidoctor is a popular implementation of a rendering engine for Asciidoc.

I’ve given a talk Asciidoctor Deep Dive at the JavaLand conference. I post the code samples, the slides and a video recording here.

In the talk I share my experiences with Asciidoctor, tips and tricks and hints to style your PlantUML diagrams. I also show how to get most out of Asciidoctor PDF generation using templates and extensions.

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Microservices Article in Informatik Spektrum

Microservices - more than a hype?

For the German magazine Informatik Spektrum I wrote an article capturing the current ideas of microservices as an introduction.

It’s based on my project experience over the last two years. A free online-version of the article is available as well!

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