Domesticating Kubernetes

Post by g-clef » Sat, May 02, 2020, 12:02 PM UTC

hddherman wrote: post #88

g-clef wrote: post #82

Earlier quoted context omitted.

I'll bite. One thing I found in running my home lab was that I kept having to burn it to the ground & rebuild it regularly anyway. For example, dist-upgrade never really works: every time I try I just end up wasting a couple days wrestling with it and then giving up and rebuilding the machine from scratch. Even if I just assumed that I'd have to build from scratch every time, differing app and library versions meant…

I think you could achieve something similar but by just using simple standalone containers that you start with Podman or Docker. Once you have the OS up and running, then all you need to do is push the configuration to the server (I just rsync systemd service files) and start the services. Persistent data is stored elsewhere anyway, so moving a service is just a matter of copying a directory over to another machine a…

Post by brianwawok » Sat, May 02, 2020, 5:25 PM UTC

StreamBright wrote: post #89

brianwawok wrote: post #84

Earlier quoted context omitted.

No I have not. Going on 3 years now?

Great. So you do not have any experience with the worst-case scenario. That is exactly my point. I would like to hear your opinion once you fixed an outage that is caused by K8s.

Post by brianwawok » Sun, May 03, 2020, 12:22 AM UTC

StreamBright wrote: post #94

brianwawok wrote: post #93

Earlier quoted context omitted.

Well what is this outage caused by? Not understanding how k8s work, or actual provider screwing up? if the former - I try to read carefully and test my workloads in a test cluster before I do it in prod. if the latter, I think google has excellent operational excellence. This is like saying you wouldn't take driving advice from me until I total a few cars. Perhaps I didn't total a few cars because I make good driving…

An outage that is caused by k8s. You can pick a random from this list. https://github.com/hjacobs/kubernetes-failure-stories >>This is like saying you wouldn't take driving advice from me until I total a few cars No, I am saying you do not have enough experience with k8s. That is all. Totaling a car implying you are driving, using k8s implying that whoever wrote that particular part of k8s is driving. You have some c…

Post by brianwawok » Sun, May 03, 2020, 4:35 PM UTC

StreamBright wrote: post #96

brianwawok wrote: post #95

Earlier quoted context omitted.

Sorry I’m not following Should I compile a list of failure stores for companies that ran Linux because Linux is complicated or has had various bugs? How about a list of failure stories of how Ruby causes problems? You can get errors with any system. You would need to prove to me that k8s has say more errors per day than a competitor (lambda? VMs). I just don’t understand...

>> Hosted k8s has changed my life. Let me focus on my business and not my infra. This is the claim that you made. I would argue that since you do not have experience with it you perceive it as you do not need to focus on your infra. Once you run into a failure with k8s and you actually need to fix it, this might change. That is all.

Post by _ea1k » Mon, May 04, 2020, 2:50 PM UTC

wlll wrote: post #70

_ea1k wrote: post #65

Earlier quoted context omitted.

The pi 4 has gigabit ethernet. I'm not sure why you'd think it has "woeful network performance". The 3B+ could only do a couple hundred megabit, which was somewhat mediocre, though.

If they've fixed it with the 4 then that's great, ISTR in previous versions the Ethernet was backed by the shared USB controller ( https://raspberrypi.stackexchange.com/questions/45130/why-do... ), hence my question.