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Looking for FOSS server monitoring UI (feddit.nl)

submitted 4 months ago by kcweller@feddit.nl to c/selfhosted@lemmy.world

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Hey everyone,

I have an unraid server and over the years I've gathered quite a lot of tools, some of which are now exposed to the net.

I've been mostly checking on my server every once in a while to see if things are healthy, but I would like a more central version to look into the health of my network, any issues from docker logs, etc.

Anyone got a good ui for that? (preferably deployed through docker)

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[–] hamsda@feddit.org 5 points 4 months ago

I'm using CheckMK to monitor my hypervisor, physical hardware like disks, CPU etc. and SNMP-capable hardware like my pfSense firewall via a CheckMK instance in docker. It either works in docker or on a few different linux based OS like ubuntu and debian (see CheckMK download page).

There's a free and open source version (called raw edition, GitHub Link) which I am using. It comes with a lot of checks / plugins for monitoring stuff out of the box and if there's something it doesn't ship, you can easily create your own check in whatever language your server is capable of executing a binary of. Or you could look up if there's a user-contributed plugin on the official CheckMK Exchange Platform.

The whole configuration of this is based on rules with a lot of predefined rules and sane defaults already set.

To have an example for your use-case: You can monitor docker-logfiles and let CheckMK warn you, if specific keywords are or are not in a logfile. You will then be able to view the offending lines in the monitoring UI.

Why do I use this?

We use it at work
FOSS
docker makes updating this easy
can send mails, teams notifications, ...
very customizable and expandable

my docker compose file

# docker-compose.yml

services:
  monitoring:
    image: checkmk/check-mk-raw:2.4.0-latest
    container_name: monitoring
    restart: unless-stopped
    environment:
      - CMK_PASSWORD=changeme
    ports:
      # WEB UI port
      - "5000:5000"
      # agent communication port
      - "8000:8000"
      # used for SNMP
      - "162:162/udp"
      - "514:514/tcp"
      - "514:514/udp"
    volumes:
      - "./monitoring:/omd/sites"
      - /etc/localtime:/etc/localtime:ro
    env_file:
      - .env