Blog

Optional Arguments in Azure DevOps Janne Kemppainen |

Sometimes your Azure DevOps pipelines need to adapt to different situations with sane default values. On the other hand, optional arguments become especially handy when you want to create flexible and reusable templates.

Loops in Azure DevOps Pipelines Janne Kemppainen |

If you need to do the same thing over and over again, why repeat yourself? In this post we’ll discover how looping works in Azure DevOps pipelines.

Replace Docker with Podman and Buildah Janne Kemppainen |

Since Docker announced that the licensing terms for Docker Desktop have changed so that large companies need to start paying there has been growing interest towards alternatives. How can you switch to a free and open source solution, or should you?

Send Teams Notifications from Azure DevOps Janne Kemppainen |

An important part of a CI pipeline is to keep you updated on what’s happening. When a build or a test suite fails you might want to be notified about it. In this post we’ll learn how to send messages to a Teams channel from an Azure DevOps pipeline.

Configure a TLS Secret in Kubernetes Janne Kemppainen |

Quite often, when you’re working with a Kubernetes cluster, you also need to handle TLS secrets. Projects like cert-manager can take much of that load off your shoulders but sometimes you still need to configure a certificate manually.

Upgrade Ubuntu on WSL2 Janne Kemppainen |

If you search for Ubuntu distributions on the Microsoft Store you’ll notice that only the long term support LTS releases are included. In this post I’ll show you how you can upgrade to the latest release, if you need to.

Copy SSH Keys from WSL2 to Windows Janne Kemppainen |

You may have generated an SSH key pair that you use with git on Windows Subsystem for Linux. But if you also want to use Git for Windows then you might want to reuse the same key on the Windows side so that you don’t need to maintain more keys on the remote, such as GitHub.

Fix NPM No Such File Error on WSL2 Janne Kemppainen |

I was working on a Node.js project and decided to run it on top of Windows Subsystem for Linux but it just wouldn’t work. The npm command would fail with a “no such file or directory error” like this:

Get docker-compose Working on Raspberry Pi Janne Kemppainen |

I was setting up Docker on my Raspberry Pi since I wanted to run Home Assistant on top of it. I wanted to use docker-compose to manage the container, but the installation was not successful.

Cancel a Git Commit Janne Kemppainen |

Did you commit and push something that you didn’t intend to? Don’t worry, it’s quite simple to fix!

Edit Kubernetes Secrets Janne Kemppainen |

Has your API key changed? Maybe you need to update a TLS certificate? There are many reasons why you’d want to edit secrets in Kubernetes. Luckily, this is relatively simple.

What ChatOps Solutions Should You Use Today? Janne Kemppainen |

Over the years we have seen many tools that enable communication with computer systems using a chat interface. Many of them are now obsolete as their development has ceased, though they still seem to be recommended everywhere. What are the tools that you should use today?