During working with GitLab multi-project pipelines and parent-child pipelines, I have encountered the problem how to pass variables through these pipelines. The GitLab documentation describes very well how to pass variables to a downstream pipeline. My challenge is how to pass variables from child to parent pipeline …

Sometimes you have to work on different projects that are hosted on different Git management systems (GitHub, Gitlab, BitBucket, Gitea). The classical scenario is that you work on open source projects that are hosted on GitHub and on enterprise projects that are hosted on an own Git management system. These projects …

Thanks Jenkins Maven HPI Plugin, you can do the most Jenkins plugin development stuff locally. But in some cases, you have to debug a Jenkins instance remotely (In my case, the Jenkins had to run in Azure to reproduce a bug). Jenkins is a Java application, so you have to add Java's JDWP agent for debugging as Java …

During the development of the P2 Maven Plugin, I wanted to get an overview about the test coverage of the code. The tests of this plugin can be divided in two groups: Unit tests, that is written with Java, Groovy and JUnit; integration tests, that is written with Maven Invoker Plugin JaCoCo is the defacto standard …

Some years ago I write a blog post about how to generate test reports in SonarQube separate in test report for unit tests and for integration tests. Since SonarQube 6.2 the test report isn't separate in these categories any more (see SonarQube's blog post). SonarQube merges all test reports to one test report with an …

Some weeks ago, I gave a workshop about Ansible and I was asked how to set up a local test environment for Ansible. Requirement is that this test environment can run on a Windows 10 without a Linux subsystem. I don't why, but it was not my first customer where Windows 10 could not be used with Linux subsystem (Don't …

I create a sample Groovy project for Maven, that mixes Spock tests and JUnit 5 tests in one project. In the next section I'll describe how to set up such kind of Maven project. Enable Groovy in the Project First at all, you have to enable Groovy in your project. One possibility is to add the GMavenPlus Plugin to your …

If you introduce code formatting rules retroactively, you have to solve the problem how to format existing code base according to the new formatting rules. You could checkout every code repository one by one in your IDE and click on Autoformat the whole project. But this is boring and waste of time. Fortunately, …

On my last conference talk (it was about Ansible and Docker at DevOpsCon in Berlin), I was asked what is the best way to run Ansible on a Windows system. Ansible itself requires a Linux-based system as the control machine. When I have to develop on a Windows machine, I install a Linux-based virtual machine to run the …

I use a NPM registry proxy in Sonatype Nexus 3 behind an Apache2 as reverse proxy. With the "standard" Apache2 VirtualHost configuration 1<VirtualHost:80> 2ProxyRequests Off 3<Proxy *> 4Order deny,allow 5Allow from all 6</Proxy> 7ProxyPass / http://localhost:8081/ 8ProxyPassReverse / …