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Selfhosted Monitoring Tools (lemmy.derock.dev)

submitted 1 year ago by derock@lemmy.derock.dev to c/selfhosted@lemmy.world

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I’ve got a lot of services, some in docker, some in LXC or a VM in proxmox. Currently I’ve got no monitoring service. Recently a service went down and I didn’t notice for quite a while so now I’ve got a bunch of missing data. What monitoring tools do you all use? Looking for something that works with docker and plain Linux CTs/VMs and can notify me if a website is down, docker container crashed, VM is offline, etc.

and as a bonus feature something that I can run on two machines so if an entire machine dies, the other will notice and I’ll still receive a notification.

notification can be anything, email, sms, push, etc.

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[–] nitrolife@rekabu.ru 8 points 1 year ago (1 children)

I use:

Monitoring server - prometheus
Alert manager for prometheus - alertmanager. You can write any triggers here.
Web UI for prometheus - Grafana
Exporters for prometheus - node-exporter, blackbox-exporter, mysql-exporter, psql-exporter etc. You can find exporter for everything you need.
Some services native support pormetheus. Docker for example: https://docs.docker.com/config/daemon/prometheus/

If you whant cluster you can install thanos on prometheus.

[–] peregus@lemmy.world 2 points 1 year ago (1 children)

I'd like to explore Prometheus (I've never used it). Right now I use InfluxDB to store some data (ping times, temperature, servers load, etc.) can Prometheus read those values and react if something is off or should I store everything twice?

[–] nitrolife@rekabu.ru 3 points 1 year ago (1 children)

prometheus use own time series database. you can connect influxdb to grafana and send alarms from grafana, but alertmanager better i think. node-explorer can collect all this data (sensors, VM/PC load etc.)

[–] peregus@lemmy.world 2 points 1 year ago* (last edited 1 year ago) (1 children)

I've never used alerting in Grafana, how do they work? Is it possible to get alert if a ping is higher than xx for a period of time? What are alertmanager and node-explorer? Plugins or standalone tools? Sorry for all the questions! 😁 And thanks for the info!

[–] nitrolife@rekabu.ru 1 points 1 year ago (1 children)

Grafana sends an email screenshot of the graph when an event is triggered on the graph. You can see alerts part on any graph for understand.

[–] peregus@lemmy.world 1 points 1 year ago

You know that I've never knew about that? I've just set it up! Thanks!!!