Posts on Marco Seguri

Monitoring Proxmox with Prometheus and Grafana

Thu, 02 Oct 2025 12:00:00 +0200

How to setup a nice dashboard like this for your Proxmox host?

For this, we need the components listed down below (along with their IP addresses that I’ll use in this article). Everything can be easily installed through community script, but I’m expecting that nothing will work out of the box, so I’m documenting my journey here (SPOILER: it was almost flawless).

proxmox: 192.168.1.10
prometheus-pve-exporter: 192.168.1.11:9221
prometheus: 192.168.1.12:9090
grafana: 192.168.1.13:3000

I started creating a container for the prometheus-pve-exporter. After the installation I tried calling http://192.168.1.11:9221/pve?target=192.168.1.10 and got a 500 error. The logs show it’s just an authentication error. Let’s create a user on the proxmox host with only the necessary permissions to read the metrics:

From Legacy OSSRH to Central Portal

Mon, 05 May 2025 16:02:10 +0200

Today I’ve decided to release a new version of springpom. Last time I published a version there was the old OSSRH, but now I have to migrate to the new Central Portal.

This required:

migrating from nexus-staging-maven-plugin to central-publishing-maven-plugin
migrating my name.seguri.java namespace from legacy OSSRH to Central Portal

For the first part, I’ve replaced:

<build>
 <plugins>
 <plugin>
 <groupId>org.sonatype.plugins</groupId>
 <artifactId>nexus-staging-maven-plugin</artifactId>
 <version>${dep.plugin.nexus.version}</version>
 <extensions>true</extensions>
 <configuration>
 <serverId>ossrh</serverId>
 <nexusUrl>https://s01.oss.sonatype.org/</nexusUrl>
 <autoReleaseAfterClose>true</autoReleaseAfterClose>
 </configuration>
 </plugin>
 </plugins>
</build>

with:

Let jellyfin on proxmox stream a Synology folder

Wed, 23 Apr 2025 18:08:42 +0200

This will be another post you’ll find on the subject, but getting this right seems to be quite hard.

What’s the initial context and the problem we want to solve? You’ve installed proxmox on a home server and then many containers including jellyfin, and you have a Synology NAS full of content that you want jellyfin to stream.

Getting Started With Python Poetry

Mon, 27 Jan 2025 00:37:06 +0100

I was trying to see if I could stream content from my laptop to my Android TV using catt, so I decided to clone its repo. I saw that the project was using Poetry for dependency management and I decided to give it a try.

I’ve not directly installed Python on any of my Windows machines; I prefer to use JetBrains PyCharm for Python development and let it manage my Python interpreters. The first step is then to find out which Python interpreter is being used by PyCharm. I opened one of my Python projects in PyCharm and started to add a new interpreter:

PowerShell Incognito Session

Wed, 11 Dec 2024 19:17:08 +0100

Do you need to run a command in a new PowerShell session without leaving any trace, or without showing any previous commands when navigating the history with the arrow keys? Open the Terminal, open the Settings menu, scroll down to the Profiles section, and click on the “Add profile” button. Duplicate the PowerShell profile:

I’ve called mine “PowerShell (Incognito)”. Then set the following in the “Command line” field:

Building the JohnnyDecimal PowerToys Run Plugin

Fri, 22 Nov 2024 18:26:09 +0100

I started a few years ago to organize my digital stuff with the Johnny.Decimal system. On macOS I had a custom Raycast script to quickly tap into my Johnny.Decimal folders; now that I’m on Windows, I want to replicate that functionality with PowerToys Run.

Inspiration

There are some excellent resources to get started with PowerToys Run plugins:

I’ll document my journey here, with step-by-step commits in my repo. When you see a link called “milestone”, you can check out how my code looked up to that point. Let’s get started!

Hello World

Thu, 21 Nov 2024 21:00:00 +0100

Welcome to my blog!

The first post will of course be about how I set up this blog. I found this guide by David Hwang and decided to give it a try.

I made very few changes to the first part of the guide:

I used winget to install Hugo: winget install Hugo.Hugo.Extended
I used the GitHub Workflow suggested by the Hugo documentation

The second part about the custom domain is different because I’m using a subdomain rather than an apex domain. This is what I did: