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Nicolas Takashi

@ntakashi.com

Software Engineer talking about Observability | Cloud-Native | SDE | SRE

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25.05.2023
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Latest posts by Nicolas Takashi @ntakashi.com

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Visualizing Target Relabeling Rules in Prometheus 3.8.0 | Prometheus An open-source monitoring system with a dimensional data model, flexible query language, efficient time series database and modern alerting approach.

Are you using target relabeling rules in @prometheus.io? I wrote a short blog post about the new relabeling rule visualizer I built that just got released with Prometheus v3.8.0, and which can help you make sense of your rules:

prometheus.io/blog/2025/12...

03.12.2025 15:05 πŸ‘ 9 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Talks Selected conference talks and presentations on observability and cloud‑native systems.

Finally, I managed to take some time and add a page to my blog post with some of the talks I presented, and I found the youtube video available.

100% vibe coded :)

ntakashi.com/talks/

07.12.2025 20:16 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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#PromCon was amazing, really good to see some old friends and meet new ones.

Amazing talks, the energy was so nice, and it’s amazing to see the Prometheus Ecosystem so alive.

See you soon folks.

22.10.2025 21:15 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Yeah, I can definitely imagine, especially in some complex use cases.

We use it, but not doing nothing too complex, just some build steps or automations for local development

18.10.2025 12:41 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Super cool! Love to see more people using Mage πŸ§™ z

18.10.2025 12:34 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

That’s amazing, what’s your ci system? gH Actions or something else?

18.10.2025 12:31 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
PromCon PromCon, the conference about the Prometheus monitoring system and time series database

Reminder: The CfP for #PromCon (October 21+22 in Munich) is open! Please submit your @prometheus.io talks :)

promcon.io/2025-munich/...

24.06.2025 08:51 πŸ‘ 15 πŸ” 9 πŸ’¬ 0 πŸ“Œ 0

About Rust itself, I can't talk much at the moment, I'm on the very beginning, so I'm still trying to understand the barebones.

One thing that for sure I can say, and I think it's obvious, is the fact that you write a lot of code while comparing with GoLang, Rust is very verbose IMO

21.06.2025 10:04 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

kube-rs is very straightforward, but you need to write a lot of things by yourself, at least this is my experience while working on this during a week.

21.06.2025 10:02 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

So far it's going ok, I'm missing some shortcuts that kubebuilder offers, like the scaffolding using kubebuilder cli and also the whole testing structure we have available.

21.06.2025 10:01 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I won’t lie for a moment o was thinking about about and just go with old and good golang + kubebuilder

20.06.2025 15:20 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Rust isn't very expressive and you need to type a lot more than golang.

Error handling was killing me haha

20.06.2025 15:20 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Writing a simple controller took me some time to be honest.

Even with Cursor auto completion it wasn’t that easy, docs are not clear about how kube-rs works

20.06.2025 15:20 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

This week I had the opportunity to start writing a new Kubernetes Controller, at Coralogix most of the services are Rust based.

So I decided to give a try to rust and kube-rs, since I’m not a rustician, that would be a great opportunity to learning

20.06.2025 15:19 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Foi maneiro demais, valeu mano @carlosenog.dev

01.06.2025 15:44 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Oh this is soooo beautiful

11.05.2025 12:48 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Gain Prometheus Query Visibility with prom-analytics-proxy Track PromQL usage patterns, query performance, and system impact in real time using prom-analytics-proxy β€” a drop-in tool for Prometheus and Thanos users.

Ever wondered what actually happens between your dashboards and Prometheus?

I just shipped a new version of prom-analytics-proxy, and wrote about the blind spots it solves in query visibility

ntakashi.com/blog/prometh...

DMs open, feedback welcome πŸ™Œ

11.05.2025 10:48 πŸ‘ 10 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
Limitless Possibilities, Consistent Design: Crafting Dashboards... Nicolas Takashi & Antoine ThΓ©baud
Limitless Possibilities, Consistent Design: Crafting Dashboards... Nicolas Takashi & Antoine ThΓ©baud YouTube video by CNCF [Cloud Native Computing Foundation]

A really nice overview of @PersesDev at the #kubeconeu talk by @ntakashi.com and Antoine ThΓ©baud, Limitless Possibilities, Consistent Design: Crafting Dashboards with Perses DaC. #cloudnative #observability #o11y youtu.be/7h70Olo5Uzk

17.04.2025 08:40 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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KubeCon EU Dump

06.04.2025 08:02 πŸ‘ 6 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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I’m glad to be presenting at #KubeCon today!

Over 400 attendees signed up to join me and Antoine Thebaud and see how #PersesDev is changing the way we manage dashboards, with consistency, scalability, and code.

Let’s craft something better together.

See you there at 16:00 πŸ•“

03.04.2025 13:36 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

We are ready for Day 2 at #KubeCon!

We were excited to talk to so many nice Thanos users yesterday! Let's continue that energy! πŸ’œ

Also, catch some lovely guest appearances at the booth from beloved community members like @friedrichge.bsky.social and @ntakashi.com!

03.04.2025 09:15 πŸ‘ 5 πŸ” 2 πŸ’¬ 0 πŸ“Œ 2
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Ready for tomorrow, see you around folks.

#KubeCon

31.03.2025 20:44 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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KubeCon + CloudNativeCon Europe 2025: Limitless Possibilities, Consistent Desi... View more about this event at KubeCon + CloudNativeCon Europe 2025

#KubeCon is right there ✊ on the door.

Who will be there too?

kccnceu2025.sched.com/event/1txHy/...

25.03.2025 22:14 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

This

15.03.2025 09:49 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Learn Prometheus From the Creator Learn Prometheus in the most effective way with online trainings by PromLabs

I've just updated all of my Prometheus monitoring trainings at training.promlabs.com to Prometheus v3 and also updated most other component versions (Alertmanager, exporters, Prometheus Operator, SDKs, ...) to keep things fresh.

Check out the trainings if you want to learn @prometheus.io :)

25.02.2025 12:20 πŸ‘ 16 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0

I might be a bit bias, but I just like go sdk especially because it’s so easy integrate with other tools on the ecosystem like promql package to lint and transform promql expressions.

04.03.2025 08:30 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Amadeus, Chronosphere and RedHat is using it not only scheme but core components as well.

Dash0 is relying their dashboard solution bases on the Perses Dashboard Scheme.

We already have other people talking about adoption like Logz.io

04.03.2025 08:28 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Come to say Hi πŸ‘‹

26.02.2025 08:04 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

KKkk!
That time renovate will not save me, tons of breaking changes on the npm modules

22.02.2025 20:31 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0