DEV Community: Aurélie Vache

Understanding Go: part 13 – Methods

Aurélie Vache — Mon, 13 Apr 2026 07:30:00 +0000

Even if you can create your first application in Go in a few minutes, understanding a new programming language is not easy and can be time-consuming.

After writing the blog series Learning Go by examples, let's discover all the concepts of Go in a visual way, in sketchnotes.

In this blog post of sketchnotes about Go, we will discover another useful concept: the "Methods". There are special functions.

This is another blog post of this serie so if you liked it, you can follow me, and tell me what do you think ❤️. If people are interested, I will publish others sketches :-).

Moreover, if you are interested about this way to explain visually technologies, I published an entire illustrated book about Kubernetes, available in paperback on Amazon and in digital version on GumRoad: "Understanding Kubernetes in a visual way".
And an illustrated book about Docker, available in paperback on Amazon and in digital version on GumRoad: "Understanding Docker in a visual way".

Git by example - The signature you will not forget! ("missing DCO signoff")

Aurélie Vache — Mon, 26 Jan 2026 20:19:33 +0000

In the open source world, as well as in companies, you may be asked to sign your commits.
Sometimes, you know that after pushing a commit.
Don't worry, it's not too late!

The story:

I push a commit in an (open source) repository
I open a Pull Request (PR)
I receive an automatic message:

"missing DCO signoff"

Oh damn!! 😅
I have already commited and pushed, but the DCO is missing, what to do??

Don’t panic, there are two magical commands for this case:

$ git commit --amend --no-edit --signoff
[patch-1 174b5fb] feat: add k8saudit-ovh in registry.yaml file
 Author: Aurelie Vache <xxx@xxx.xxx>
 Date: Mon Jan 26 19:01:46 2026 +0000
 1 file changed, 27 insertions(+)

$ git push -f origin patch-1

Let's explain the commands:

The --no-edit parameter, in the git commit command, allows to not open automatically the editor (vi on my side) with the commit and the signature. You need to close the file for the commit to occur.

And the -f parameter, in the git push command, allows you to force the push. You want to add your signature and you really want it ^^.

Tips:

You can create an alias:

alias git-oops=git commit --amend --no-edit --signoff

You can also signoff the last two commits:

git rebase --signoff HEAD~2

Conclusion

Git is a version manager (SCM) used in mass, but like many tools we use every day, it is full of great practical features but not very easy to understand.

I hope this example will be useful to you.

Understanding Kubernetes: part 60 – Kubernetes 1.35 Changelog

Aurélie Vache — Fri, 19 Dec 2025 09:28:36 +0000

Understanding Kubernetes can be difficult or time-consuming. In order to spread knowledges about Cloud technologies I started to create sketchnotes about Kubernetes. I think it could be a good way, more visual, to explain Kubernetes (and others technologies).

We continue the serie of Sketchnotes about Kubernetes, with a focus on what's new in the new version of Kubernetes: v1.35.

With 60 new enhancements, this Kubernetes release contains several useful features and improvements like pod topology labels, pod level tracking, traffic distribution for services, in-place pod resource update...

Let's discover Kubernetes 1.35, in a visual way.

Kubernetes 1.35 Complete changelog

If you are interested, I published an entire illustrated book about Kubernetes, available in paperback on Amazon and in digital version on GumRoad: "Understanding Kubernetes in a visual way".

As usual, if you like theses sketchnotes, you can follow me, and tell me what do you think. I will publish others sketchs shortly :-).

Understanding Kubernetes: part 59 – Kubernetes 1.34 Changelog

Aurélie Vache — Tue, 02 Sep 2025 05:33:18 +0000

We continue the serie of Sketchnotes about Kubernetes, with a focus on what's new in the new version of Kubernetes: v1.34.

With 58 new enhancements, this Kubernetes release contains several useful features and improvements like DRA, KYAML output support and pod-level cpu and memory resources.

Let's discover Kubernetes 1.34, in a visual way.

Kubernetes 1.34 Complete changelog

If you are interested, I published an entire illustrated book about Kubernetes, available in paperback on Amazon and in digital version on GumRoad: "Understanding Kubernetes in a visual way".

As usual, if you like theses sketchnotes, you can follow me, and tell me what do you think. I will publish others sketchs shortly :-).

Le journal d'une créatrice et "principal maintainer" de provider Pulumi - part 1

Aurélie Vache — Tue, 15 Jul 2025 15:16:10 +0000

This blog post will be in french. I wanted to do as a "personal journal" with all of my bugs, errors, complaints and solutions as a Pulumi provider creator and maintainer for a known Cloud provider 😇.

Il était une fois ...

Il y a plusieurs années de cela, j'ai plongée dans l'Infra as Code (IaC). Après avoir "leadé" (et remis à flot) le provider Terraform OVHcloud pendant plusieurs années, j'ai décidé de créer celui pour Pulumi en Juillet/Aout 2023.

L'idée était bonne et "assez simple" sur le papier. Cela faisait des années que je guettais la maturité de Pulumi...

⚠️ Spoiler alert : Créer et maintenir un provider Pulumi est loin d'être facile. Et encore moins lorsqu'il s'agit de maintenir un "Terraform bridge provider", autrement dit une "synchronisation" avec un provider TF/OpenTofu existant 😅.

Cela a été et cela est encore loin d'être facile. A chaque mise à jour/nouvelle release du provider TF, je m'occupe de faire la synchronisation et de publier une nouvelle release du provider Pulumi.
Et soyons honnête, à chaque fois ou quasiment à chaque fois, je me heurte à des problèmes, des bugs, des messages d'erreurs pas super compréhensible par le commun des mortels. A chaque synchronisation, son épopée et ses tips à connaitre.

... un journal de bord retraçant des erreurs et leurs résolutions

Vu les problèmes que j'ai eu au quotidien, j'ai décidé de créer une sorte de "journal de bord".
Un article = un problème/une erreur = une solution

⚠️ Disclaimer : Étant donné que je commence ce journal de bord deux ans après le début de mes aventures de "maintainer" de provider Pulumi, j'ai pas mal d'histoires à vous raconter mais il se peut qu'elles me viennent dans le désordre (de l'erreur la plus récente, à la plus vieille).

Cela vous tente ?

Rendez-vous au prochain article !

Understanding Kubernetes: part 58 – EndpointSlice

Aurélie Vache — Mon, 30 Jun 2025 06:49:12 +0000

We continue the serie of Sketchnotes about Kubernetes, with a focus on EndpointSlice, which is a useful list of Pods endpoints that is used by Services Kubernetes resources.

In Kubernetes there are resources that you can deploy but also resources that are created by another resources, it's the case of EndpointSlice :).

If you are interested, I published an entire illustrated book about Kubernetes, available in paperback on Amazon and in digital version on GumRoad: "Understanding Kubernetes in a visual way".

As usual, if you like theses sketchnotes, you can follow me, and tell me what do you think. I will publish others sketchs shortly :-).

Understanding Docker: part 49 – Docker Compose (2025)

Aurélie Vache — Mon, 23 Jun 2025 07:03:58 +0000

Understanding Docker can be difficult or time-consuming. In order to spread knowledge about Cloud technologies I started to create sketchnotes about Docker. I think it could be a good way, more visual, to explain Docker (and other technologies like Kubernetes and Istio).

We continue the series of Docker sketchnotes with a focus on Docker compose included all the latest features: publish compose file as an OCI artifact and use it, transform compose files to Kubernetes manifests, providers usage like from Docker Model Runner...

As usual, if you like theses sketchnotes, you can follow me, and tell me what do you think. I will publish others sketchs shortly :-).

If you are interested, I published the book in a paperbook version on Amazon: Understanding Docker in a visual way and also in a PDF/ebook version on GumRoad.

If you are also interested in Kubernetes, the book Understanding Kubernetes in a visual way is available also.

Understanding Kubernetes: part 57 – Indexed Jobs

Aurélie Vache — Mon, 16 Jun 2025 13:02:59 +0000

We continue the serie of Sketchnotes about Kubernetes, with a focus on indexed jobs, a special type of Jobs you can use on Kubernetes.

If you are interested, I published an entire illustrated book about Kubernetes, available in paperback on Amazon and in digital version on GumRoad: "Understanding Kubernetes in a visual way".

As usual, if you like theses sketchnotes, you can follow me, and tell me what do you think. I will publish others sketchs shortly :-).

Understanding Kubernetes: part 56 – Native Sidecar Containers

Aurélie Vache — Mon, 26 May 2025 08:27:49 +0000

We continue the serie of Sketchnotes about Kubernetes, with a focus on native sidecar containers.

If you are interested, I published an entire illustrated book about Kubernetes, available in paperback on Amazon and in digital version on GumRoad: "Understanding Kubernetes in a visual way".

As usual, if you like theses sketchnotes, you can follow me, and tell me what do you think. I will publish others sketchs shortly :-).

Understanding Kubernetes: part 55 – Kubernetes 1.33 Changelog

Aurélie Vache — Mon, 12 May 2025 07:17:27 +0000

We continue the serie of Sketchnotes about Kubernetes, with a focus on what's new in the new version of Kubernetes: v1.33.

With 64 new enchancements (!!!), this Kubernetes release contains several useful features and improvements like Linux user namespace, sidecar containers and in-place pod resource update.

Let's discover Kubernetes 1.33, in a visual way.

Kubernetes 1.33 Complete changelog

If you are interested, I published an entire illustrated book about Kubernetes, available in paperback on Amazon and in digital version on GumRoad: "Understanding Kubernetes in a visual way".

As usual, if you like theses sketchnotes, you can follow me, and tell me what do you think. I will publish others sketchs shortly :-).

Understanding Harbor: part 1 – Proxy Cache

Aurélie Vache — Mon, 14 Apr 2025 09:57:37 +0000

The CNCF landscape contains a lot of useful tools, it can be not easy to know which tools to use and how is it working. That's the reason why I decided to explain several concepts and features of the CNCF graduated project: Harbor.

And as understanding the project Harbor can be difficult or time-consuming, I started to create sketchnotes in order to understand it in a visual way.

We start the series of Harbor sketchnotes with a focus on Proxy cache.

Even if the Harbor CLI is a work in progress, I believe in this CLI (I love CLI ^^), and I believe in the fact that it can be an alternative to the Harbor UI.

As usual, if you like theses sketchnotes, you can follow me, and tell me what do you think. I will publish others sketchs shortly :-).

If you are interested in Kubernetes, I published the book Understanding Kubernetes in a visual way.
I also published a book about Docker: Understanding Docker in a visual way

Understanding Docker: part 48 – Docker Compose Lifecycle hooks

Aurélie Vache — Mon, 20 Jan 2025 08:07:38 +0000

We continue the series of Docker sketchnotes with a focus on preStop and postStart lifecycle hooks on Docker Compose.

As usual, if you like theses sketchnotes, you can follow me, and tell me what do you think. I will publish others sketchs shortly :-).

If you are interested, I published the book in a paperbook version on Amazon: Understanding Docker in a visual way and also in a PDF/ebook version on GumRoad.

If you are also interested in Kubernetes, the book Understanding Kubernetes in a visual way is available also.