Mate Gelei-Szego
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Hi, I'm Máté.

Experienced DevOps engineer with a background in software development, finance and FinOps.

  • 25 March 2024

    Unlocking Ubuntu LUKS2 encryption automatically at boot

    Tired of asking for a KVM every time you need to reboot your server to unlock your LUKS2 encryption?

  • 21 March 2024

    Install an OS without KVM

    I wanted to install RHEL on a Hetzner bare metal server, but there was a large demand for KVMs and I didn’t want to wait. I’ve found a tutorial on how to install Proxmox from the Hetzner rescue system - here’s how to do it for (almost) any OS.

  • 05 February 2024

    Install RSAT via Powershell

    Note to self – I needed to install RSAT on a build agent, so using the “optional features” GUI was not possible.

  • 18 December 2023

    Azure DevOps - build pipeline billing extravaganza

    Azure DevOps has a nice little feature called Azure Pipelines. It’s a great CI/CD tool, especially if you’re already using Azure DevOps for your source control and work item tracking. However, it’s pricing is a little confusing, and it’s easy to end up paying more than you need to.

  • 14 July 2023

    Global and persistent query filters for Entity Framework Core

    Occasionally, you may want to apply a filter to all queries for an entity type. For example, you may want to ensure that some records are not returned in any query, such as when an entity is soft-deleted.

  • 13 July 2023

    Let's Encrypt Certbot manual mode with Azure Key Vault

    Most of the time, I use Certbot to generate and renew my Let’s Encrypt certificates in an automatic way, i.e. through Github Actions or something. However, every now and then I need to generate a certificate manually, usually for ephemeral purposes.

  • 25 June 2023

    Persist a list of integers with Entity Framework Core

    I had to persist a list (or array) of integers in a database table using Entity Framework Core. I was surprised to find that EF Core does not support this out of the box. I found a few solutions online, but they all seemed to be overly complicated, here’s a quick summary of what I’ve found.

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