You can also take a look at open telemetry. It's a huge open source project with lots of functionality. Handles logs just fine and also can provide metrics and traces too. Might be overkill for your needs but it's an excellent tool.
this post was submitted on 25 Aug 2023
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I'll check it out. Thanks.
You could use grafana loki to handle logs, it's similar to Prometheus so if you're already using that and/or grafana it's an easy setup and the API is really simple too.
I did stumble on Grafana Loki in my search. Was trying to figure out if it was overkill. Is it fairly lightweight?
I second this. Loki for logs, VictoriaMetrics for metrics―it's significantly more lightweight than ELK logging (and any lags are irrelevant for a homelab), and VM is similarly much more careful with RAM than Prometheus.
I use a Graylog/Opensearch/Mongodb stack to log everything. I spent a good amount of time writing parsers for each source, but the benefit is that everything is normalized to make searching easier. I'm happy with it as a solution!
I also use graylog to aggregate logs from various devices (mostly from rsyslog over SSL/TLS). The only downsides for me are the license (not a big problem for a personal setup), and resource usage of the general graylog/elasticsearch stack. I still think it's great.
I use this ansible role to install and manage it.
For simpler setups with resource constraints, I would simply use a rsyslog server as aggregator instead of graylog, and lnav for the analysis/filtering/parsing part
All these new fang projects, but really I just use remote rsyslogd. Works just fine, super robust, easy setup. You can literally be up an.running within minutes.
That's been my go-to in the past but since Debian 12 leaned into journald I was looking into ways to work with that.
It's insane that journald doesn't include a remote option. A feature used in industry for over two decades. 🤦
FWIW I use an elastic stack for that: filebeat, journalbeat to collect logs. Logstash to sort and parse them. Elasticsearch to store them. Not sure if it satisfies your FOSS requirement, as I don't believe it's entirely open source.