Earlier quoted context omitted.
It’s an important point for those who may unknowingly over engineer.
And they are probably not going to change their mind by reading an anonymous sarcastic comment on HN.
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Common mistakes using Kubernetes
11–20 of 149 posts
Re: Common mistakes using Kubernetes
#12... requiredDuringSchedulingIgnoredDuringExecution: ... This instantly remembered me of this: https://thedailywtf.com/articles/the-longest-method Kubernetes sometimes shows its Java roots.
To be fair, I don't see how this could be shorter in any other language without losing readability.
Re: Common mistakes using Kubernetes
#13I wish there was a way to upvote something 10x once a month here. This would be the post I use that on.
When I was writing my book my editor asked me to remove any writing about mistakes and changes I made in the project for each chapter. I had a bug that appeared and I wanted to write about how I determined that and fixed it. They said the reader wants to see an expert talking, as if experts never make mistakes or need to shift from one tact to another.
But, I find I learn the most from explanations that share how your mental model was wrong initially and how you figured it out and how you did it "more right" the next time.
That's really how people build things.
Re: Common mistakes using Kubernetes
#14What would a good liveness and readyness probe do for a rails app? What kind of work and metrics would these 2 endpoints do in my app?
Re: Common mistakes using Kubernetes
#15What would a good liveness and readyness probe do for a rails app? What kind of work and metrics would these 2 endpoints do in my app?
If it has network problems, kubernetes can take out that instance out of serving traffic.
When your doing rolling upgrades it can signal your app is ready to take traffic.
Those are the main uses.
Re: Common mistakes using Kubernetes
#16Lots of good advice in this article.
Re: Common mistakes using Kubernetes
#17... requiredDuringSchedulingIgnoredDuringExecution: ... This instantly remembered me of this: https://thedailywtf.com/articles/the-longest-method Kubernetes sometimes shows its Java roots.
> its Java roots
Citation needed.
AFAIR Borg is implemented in C++ and k8s has been implemented in Go from day 0.
Am I missing some crucial steps in k8s's history?
Re: Common mistakes using Kubernetes
#18... requiredDuringSchedulingIgnoredDuringExecution: ... This instantly remembered me of this: https://thedailywtf.com/articles/the-longest-method Kubernetes sometimes shows its Java roots.
> its Java roots Citation needed. AFAIR Borg is implemented in C++ and k8s has been implemented in Go from day 0. Am I missing some crucial steps in k8s's history?
I remember a comment from someone on the go team (bradfitz maybe) saying that the initial plan for Kubernetes was to be implemented in java, but go was chosen because it already had a lot of momentum in the container world.
Re: Common mistakes using Kubernetes
#19In my opinion, the most common mistake is not in the article : using kubernetes when you don't need to.
Kubernetes has a lot of pros or the papers but in practice it's not worth it for most small and medium companies.
Re: Common mistakes using Kubernetes
#20Shameless plug but on topic. I wrote recently about readiness and liveness probes with Kubenetes. If you look for an educational perspective you can check: https://medium.com/aiincube-engineering/kubernetes-liveness-...