I use some batch scripts in my proxmox installation. They are in cron.hourly and daily checking for virus and ram/CPU load of my LXC containers. An email is send on condition.
What are your tipps or solution without unnecessary load on disc io or CPU time. Lets keep it simple.
https://github.com/awesome-foss/awesome-sysadmin#monitoring
I use netdata (agent only, not the cloud/SaaS stuff)
I use zabbix to monitor everything, agent on each device uses around 30 mb of memory and with the Linux templates it can monitor just about everything on the server.
Does zabbix use a database continuously polling and storing data or is live data used for indication and/or triggers?
Not the above guy but I believe it’s a database.
Prometheus, Loki and Grafana.
And so so many Prometheus metric exporters.
Observability is such an endless rabbit hole, it’s so easy for me to spend huge amounts of time accomplishing not that much lol. But very enjoyable and cool to see it all come together.
My pro tips: using Kubernetes actually makes this stuff a heck of a lot easier to set up thanks to the common patterns that k8s has - lots of turnkey helm charts out there that make it all so easy and are powerful. Another tip would be to use Prometheus service discovery if you can. Also, Loki/Promtail is actually quite easy to set up - but using LogQL queries can be very tricky. Just be warned, observability is a full time hobby in itself lol
I’ve used monit for maybe 2 decades now. Works great and simple to use.
Nice, will take a look into it
Nagios. Core, but i’ve worked with it for years and am kinda masochistic. (Currently tying it into an IDRAC6)
Monit for simple stuff and daemon restart on failure. LibreNMS for SNMP polling, graphing, logging, & alerting.
I’m ever so slowly teaching myself Zabbix, need something full-featured because I also need monitoring for my hosting clients etc
Might be a bit more complex than what you want, but I love Prometheus + Alertmanager and a nice sexy Grafana dashboard
