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Cake day: Jun 20, 2023

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How has nobody in this thread said check_mk yet?

It’s free, you host it yourself. It’s built off of nagios, compatible with nagios plugins, supports snmp or agent based checks. It can email, SMS, slack or discord you when something breaks, you can write your own custom checks in any language that can output to a local console… I could never imagine even looking for something else.


A raspberry pi or orange pi could definitely run all of those things at very low power consumption.


Nobody should run k8s/k3s without understanding how they work lol, that’s a recipe for lost data.


Proxmox uses scsi for disk images, which are single access only

Smb would be quite a lot of overhead, and it doesn’t natively support linux filesystem permissions. You’ll also run into issues with any older programs that rely on file locks to operate. nfs would be a much more appropriate choice. That said, apparmor in container images will usually prevent you from mounting remote nfs shares without jumping through hoops (that are in your way for a reason). You’ll be limited to doing that with virtual machines only, no openvz/containerd.

Fun fact, it was literally the problems of sharing media storage between multiple workflows that got me to stop using virtual machines in proxmox and start building custom docker containers instead.


There are things proxmox definitely can’t do, but chances are even if you know what they are, they probably still don’t apply to your workflows.

Most things are a tradeoff between extensibility and convenience. The next layer down is what I do, Debian with containerd + qemu-kvm +custom containers/vms, automated by hand in a bunch of bash functions. I found proxmox’s upgrade process to be a little on the scuffed side and I didn’t like the way that it handled domain timeouts. It seemed kind of inexcusable how long it would take to shut down sometimes, which is a real problem in a power event with a UPS. I also didn’t like that updates to proxmox core would clobber a lot of things under the hood you might configure by hand.

The main thing is just to think about what you want to do with it, and whether you value the learning that comes with working under the hood at various tiers. My setup before this was proxmox 6.0, and I arguably was doing just as much on that before as I am now. All I really have to show for going a level deeper is a better understanding of how things actually function and a skillset to apply at work. I will say though, my backups are a lot smaller now that I’m only backing up scripts, dockerfiles, and specific persistent data. Knowing exactly how everything works lets you be a lot more agile with backup and recovery confidence.


I have a little 4 core/ 8gb ram VM running my work instance that monitors over a thousand clients on 60s check intervals, you may want to look into your config. I honestly have no idea what could cause 15 machines to cost that much computationally


check_mk is what I use at home and at work, it’s a fork of nagios/icinga, works with agents, nagios plugins, or snmp, and if somehow you can’t find what you want to monitor, writing custom checks is as easy as writing a bash script