Hacker News: tjarjoura

Breaking a Kubernetes Service in Three Ways and Examining the Raw Packets

tjarjoura — Fri, 24 Apr 2026 12:32:14 +0000

Article URL: https://tylerjarjoura.com/blog/breaking-kubernetes-service-in-three-ways/

Comments URL: https://news.ycombinator.com/item?id=47889321

Points: 1

# Comments: 0

New comment by tjarjoura in "I am building a cloud"

tjarjoura — Thu, 23 Apr 2026 14:29:39 +0000

This may be familiarity bias, but I often find `kubectl` and related tools like `k9s` more ergonomic than `systemctl`/`journalctl`, even for managing simple single-replica processes that are bound to the host network.

New comment by tjarjoura in "I am building a cloud"

tjarjoura — Thu, 23 Apr 2026 11:56:06 +0000

In some sense, Kubernetes is just a portable platform for running Linux services, even on a single node using something like K3s. I almost see it as being an extension of the Linux OS layer.

New comment by tjarjoura in "Sudo for Windows (2024)"

tjarjoura — Mon, 20 Apr 2026 11:46:49 +0000

It seems like this adds much tighter integration between the caller and callee processes used named pipes and RPC communication, such as being able to share input/output streams within the same terminal session, which is a significant value add compared to runas.exe.

New comment by tjarjoura in "Sudo for Windows (2024)"

tjarjoura — Mon, 20 Apr 2026 11:06:35 +0000

As someone who develops for both Windows and Linux I find WSL to be very useful. Much better than my previous method of dual booting Linux and Windows. I've yet to run into a problem that I needed to boot into native Linux for.

Demonstrating Kubernetes Race Conditions with a Custom Observability Tool

tjarjoura — Fri, 17 Apr 2026 12:19:17 +0000

Article URL: https://tylerjarjoura.com/blog/demonstrating-kubernetes-race-conditions/

Comments URL: https://news.ycombinator.com/item?id=47805115

Points: 2

# Comments: 0

New comment by tjarjoura in "My adventure in designing API keys"

tjarjoura — Wed, 15 Apr 2026 12:18:07 +0000

I've always been interested in the technical distinction between an API "key" and an API "token". And the terminology of "key" used to confuse me, because I associated that with cryptography, and I thought an API key would be used to sign or encrypt something. But it seems that in many cases it's basically just a long, random password.

New comment by tjarjoura in "Want to Write a Compiler? Just Read These Two Papers (2008)"

tjarjoura — Wed, 15 Apr 2026 11:11:55 +0000

What did you find more painful about compilers than other forms of programming?

New comment by tjarjoura in "Introduction to Obsidian"

tjarjoura — Tue, 14 Apr 2026 21:50:33 +0000

I've had a lot of fun combining Obsidian with Claude Code. It's very much like having a personal coach. It's a low-friction way to have it remember things about me without having to re-provide a bunch of context on new chats.

Obviously you have to be careful what you share, and make your own decisions about the utility/privacy trade-off.

I also agree with keeping it very simple. I went down a rabbit hole where I installed a bunch of plugins and basically treated it as a dynamic web application. Now I keep it simple and have basically no plugins, no enforced structure. I don't try to do Zettelkasten or anything like that. Usually I just write in my daily note and link to other notes as makes sense, but I don't force it.

New comment by tjarjoura in "Show HN: Kontext CLI – Credential broker for AI coding agents in Go"

tjarjoura — Tue, 14 Apr 2026 21:39:37 +0000

What do you anticipate to be the hardest part of supporting a self-hosted solution? I've worked a fair bit on converting SAAS -> self-hosted and always interested to hear others' pain points.

I imagine a lot of the organizations that would find this most valuable, and would be willing to pay a lot, would be the same ones that would require something like this.

New comment by tjarjoura in "France's government is ditching Windows for Linux, says US tech a strategic risk"

tjarjoura — Sat, 11 Apr 2026 14:08:35 +0000

This sounds interesting on paper but I wonder how likely it is they actually pull it off. Even putting aside the logistics of installing new oses across a bunch of workstations, migrating from legacy Active Directory domains is something even small enterprises struggle with.