Personal blog

My personal notes and some comments.

Recent Posts

2026-01-31 Delete all the files older than a specific date

This is the first time I read about -newermt and it's pretty cool, the following command will remove all the files older than Jan 1st, 2026:

find . ! -newermt "jan 01, 2026" -type f -delete

2026-01-28 Quickly-validate-a-kubernetes-pull-secret

This two commands are handy to quickly valide that a PullSecret secret is correct:

kubectl get secret my-secret -o jsonpath='{.data.\.dockerconfigjson}' | base64 --decode > ~/tmp/auth.json
podman pull --authfile ~/tmp/auth.json quay.io/some/image

2026-01-13 Run VSCode-Ansible tests locally

This is about development of the Ansible extension for VSCode.

The Git repository is hosted on Github ansible/vscode-ansible and I always have a hard time to run the CI tests locally. I took some notes.

screenshot

First, I use FishShell and you will need to adjust some commands if you use Bash or Zsh.

First you need lsof, uv and go-task. A task symlink is also needed to keep the original upstream name of Go-Task:
```
sudo dnf install -y lsof uv go-task unzip
ln -s /bin/go-task /usr/local/bin/task
```
Next, is to ignore Docker, since I only use Podman:
```
export SKIP_DOCKER=1
```

I need to create a venv with Python 3.13 (for now) and it has to be in ~/.local/share/virtualenvs:

uv venv --python 3.13 ~/.local/share/virtualenvs/vsa
source ~/.local/share/virtualenvs/vsa/bin/activate.fish

In order to avoid some warnings later, you can also populate the venv with the following Ansible tools:

uv pip install ade-python ansible-core ansible-creator ansible-lint ansible-navigator molecule

I also want node_modules/.bin in my $PATH:

set -x PATH $PATH $PWD/node_modules/.bin

I can run the linter commands with: task lint
And the end to end tests with: task e2e

2026-01-12 Claude and Github MCP tools

You already use Github with the gh command and want to enable the MCP service in Claude Code.

In this case, you don't need to prepare a new Github Personal Access Token, but you can just reuse the gh's token that gh auth token returns:

With Fishshell, this looks like this:

claude mcp add-json github -- (printf '{"type":"http","url":"https://api.githubcopilot.com/mcp","headers":{"Authorization":"Bearer %s"}}' (gh auth token))

or Bash:

claude mcp add-json github "$(printf '{"type":"http","url":"https://api.githubcopilot.com/mcp","headers":{"Authorization":"Bearer %s"}}' "$(gh auth token)")"

screenshot

2026-01-10 Virt-Lightning 2.5.0

I just published Virt-Lightning 2.5.0. The tool aims to give Linux users a way to quickly spawn cloud images locally. The user interface is a CLI and its philosophy is inspired by similar tools like the OpenStack CLI, ec2 command, Podman or Docker.

For instance, if you want to run the latest snapshot of Fedora 43, you can just install uv and run:

uvx virt-lightning start fedora-43 --memory 2048

CLI screenshot

What's new in 2.5.0

This release brings several improvements to image management:

Renamed commands: fetch is now pull, distro_list is now images, and remote_images list all the images ready to be downloaded. Overall, this gives a more intuitive CLI experience.
Pull images from any URL: You can now create new local image (distro) directly from an image URL.
Cloud-init user data: Exposed the packages and write_files configuration options for more flexible VM customization.

Here are some examples:

List available images:

uvx virt-lightning images

Pull an image from a custom URL:

uvx virt-lightning pull --url https://example.com/my-image.qcow2 my-custom-image

Start a VM with additional packages:

uvx virt-lightning start fedora-43 --packages vim,htop

Thanks to Jim McCann for his code contribution.

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