Cyphernetes: A Query Language for Kubernetes

Post by mltsd » Mon, Dec 16, 2024, 9:04 AM UTC

rtpg wrote: post #23

alpb wrote: post #13

During many years of operating several-thousands of nodes production clusters on Kubernetes, I've never seen any of these observability tools that query kube-apiserver work at that scale. Even the popular tools like k9s make super expensive queries like listing all pods in the cluster that if you don't have enough load protections, can tip your Kubernetes apiserver over and cause an incident. If you're serious about…

how are Kubernetes apiservers suffering this much from this kind of query? Surely even in huge systems the amount of data that would need to be traversed is super small, right? Is this a question of Kubernetes just sticking everything into "standard" datastructures instead of using a database?

Post by jm2dev » Mon, Dec 16, 2024, 9:32 AM UTC

koito17 wrote: post #24

rjh29 wrote: post #20

Earlier quoted context omitted.

Agree but I'm not sure why. I'm not a mac user so the initial impression is like "this isn't for you, go away". At least add a linux command alongside it!

Homebrew has a Linux variant, but I assume almost nobody uses it. Personally use a Mac with Nix, and so do many of my coworkers. Assuming Homebrew, even for a Mac user, leaves a bad impression on me.

Post by falconertc » Mon, Dec 16, 2024, 9:54 AM UTC

TheDong wrote: post #22

riku_iki wrote: post #19

Earlier quoted context omitted.

why?..

Kubernetes only runs on linux, so it follows to reason if you care about k8s you should care about linux. My experience is also that good experienced sysadmins often use linux for their own machines as well. Targetting a tool at macOS users, and omitting linux instructions, gives the impression that the tool isn't targeted at sysadmins or hackers (i.e. at us), but rather at beginners, frontend developers, etc.

Post by robertlagrant » Mon, Dec 16, 2024, 10:14 AM UTC

multani wrote: post #21

I really really like Steampipe to do this kind of query: https://steampipe.io , which is essentially PostgreSQL (literally) to query many different kind of APIs, which means you have access to all PostgreSQL's SQL language can offer to request data. They have a Kubernetes plugin at https://hub.steampipe.io/plugins/turbot/kubernetes and there are a couple of things I really like: * it's super easy to request multiple…

Post by tasuki » Mon, Dec 16, 2024, 10:26 AM UTC

falconertc wrote: post #34

devops99 wrote: post #18

The brew install cyphernetes at the top of the page is an immediate turn-off.

What? I love seeing this. I want to see how to get it quickly via package manager.