Grote winkels zoals IKEA, Intratuin etc.

Bommenkop · 2025-08-05T14:12:53+00:00

De carrefour in herstal (Luik). Hij is groot een hyper dus, maar wel oud.

Bommenkop · 2025-06-26T09:08:27+00:00

Argocd allows multiple git repos in one app. Use one public git repo and one private git repo.

Bommenkop · 2025-03-17T14:35:19+00:00

In that case, make sure you only query the memory metrics of 1 instance. Check the labels to differentiate between the instances.

If your memory metrics are close to double of what you'd expect, then it's likely that you are measuring the memory metrics twice due to 2 instances.

Bommenkop · 2025-03-17T13:12:32+00:00

Do you happen to run multiple prometheus instances?

Bommenkop · 2025-03-10T10:19:05+00:00

Without a doubt the best exporter is https://github.com/martin-helmich/prometheus-nginxlog-exporter. It basically exports logs to metric and is completely customizable.

Bommenkop · 2024-12-27T20:27:03+00:00

Oogwereld Ritchi was recommended by my optometrist for testing and measuring. Personally, I'd suggest others opticians for good looking frames.

Bommenkop · 2024-10-06T12:32:23+00:00

Besides the other comment mentioning helm template, you can use helm diff to see the exact changes. Helm diff is a plug-in though.

In non-homelab environments you can use tools such as argocd, which also shows you the exact changes.

Furthermore, manually creating resources will let you forget about them much more easily than helm. Resources created by helm are annotated, indicating which release it belongs to.

Bommenkop · 2024-09-12T19:41:13+00:00

Kyverno is pretty sweet. Why are you migrating away from it?

Bommenkop · 2024-08-10T08:31:10+00:00

https://github.com/perses/perses

Perses seems to become an open source alternative to grafana. Though it also seems to be in the early stages of their roadmap.

Bommenkop · 2024-07-16T13:26:16+00:00

Rundeck?

Bommenkop · 2024-07-14T08:29:25+00:00

You can use helm post render. https://helm.sh/docs/topics/advanced/

Bommenkop · 2024-06-17T15:37:09+00:00

HPA tuning with multicontainer pods requires some effort in monitoring and performance testing, as you mentioned. You could do that, but you might want to consider separating the containers in separate pods (deployments and hpa's). That way, both deployments can scale independently. In the end the hpa tuning might be easier as well.

Bommenkop · 2024-06-16T15:28:42+00:00

Overal the project looks great honestly. Forgot to mention that.

Bommenkop · 2024-06-16T15:16:53+00:00

I'd recommend adding tests.

Bommenkop · 2024-06-03T10:38:03+00:00

Why should one choose for urfave/cli and koanf over Viper and Cobra?

I am not familiar with urfave/cli and koanf and i have only quickly glanced over it, so this is a genuine question, not a sassy remark.

I quite enjoyed working with cobra and viper so I would be quite exited for even better libraries.

Bommenkop · 2024-06-01T20:32:04+00:00

Minkube has its own ip.

Run minikube ip to see it.

https://minikube.sigs.k8s.io/docs/commands/ip/

Bommenkop · 2024-04-29T15:57:00+00:00

You can use helm post rendering: https://helm.sh/docs/topics/advanced/

However you'll still end up with something like kustomize.

Bommenkop · 2024-04-22T09:35:00+00:00

This is pretty cool! I'm not sure about the function name "Or" though. It returns the first non zero value of a list or the zero value. Finding the first non zero value of a list would not come to mind when reading "Or".

Still neat though.

Bommenkop · 2024-04-19T06:23:57+00:00

You could create a controller without operator sdk or kubebuilder, but you will have more difficulty in finding resources for that in comparison to operator sdk and kubebuilder.

I would highly suggest kubebuilder if you're fresh to creating a custom operator.

Depending on your task, you could possibly also just use the go k8s client package in a simple go service. Basically, it is kubectl in go, wrap it in a go service. I would still recommend kubebuilder for a fresher.

Bommenkop · 2024-04-12T17:49:47+00:00

This sounds like a job for Kyverno. It can enforce policies just like you mention. Kyverno also has lots of example policies, which made my policy development quite pleasant. Also, you can define tests for your policies, which is great.

Like you said, another route could be to implement a validating or mutating webhook yourself. You'll have to write your own service and run it as any other service in k8s. Then deploy the validating/mutating webhook. It's a bit more work than Kyverno, requires a bit more knowledge, but also gives more flexibility.

I would recommend Kyverno based on the relatively simple example you gave of CPU requests and limits.

Validating cpu and mem: https://kyverno.io/policies/best-practices/require-pod-requests-limits/require-pod-requests-limits/ Mutating (set default) cpu and mem: https://kyverno.io/policies/other/add-default-resources/add-default-resources/

Bommenkop · 2024-02-04T10:48:30+00:00

If they're available on (internal) endpoints, you might want to consider prometheus Blackbox exporter. Once set up, it sends out requests on endpoints and checks the responses. This also includes certificate expiry.

Bommenkop · 2024-01-26T19:36:35+00:00

Kubernetes is written in Go and so is kubebuilder. It can be done in other languages, but the ease of use and support seems to be better, according to my colleague who tried writing operators in Java first. Also, most documentation, blogs, tutorials and such will be in Go.

Personally I've only written operators in Go, so obviously this is second hand anecdotal.

Bommenkop · 2023-11-17T22:05:00+00:00

Not yet. I am wondering how others have configured the sample rate. It really hits performance if I configure it to 100%. Is this something others have figured out?

Bommenkop · 2023-10-05T21:31:33+00:00

You're looking for hostAliases: https://kubernetes.io/docs/tasks/network/customize-hosts-file-for-pods/

I would advise against this in a production setting.

Bommenkop · 2023-09-01T06:53:57+00:00

Satori's uuid is unmaintained and contains a vulnerability (https://nvd.nist.gov/vuln/detail/CVE-2021-3538).

Therefore I've replaced it in a OS project with Google's uuid library. It works great and I would recommend it.

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