Who else is ready for some holiday downtime? I hope you’re all doing well and able to spend time with your friends, families, and loved ones. Only a couple weeks left for 2021… for now, please enjoy this collection of articles from this past week. ⛄
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From The Community
A solid primer for understanding which metrics are available in Kubernetes, and which services provide them.
Facebook wrote their own dedicated SLO store with integrations for their observability systems. It doesn’t look like SLICK has been open sourced, but it’s still a good overview of the challenges designing and scaling an SLO service across a company the size of Facebook.
I know we’re all probably exhausted reading about the recent Log4j vulnerabilities, but this is an excellent write-up providing background, detailing the exploit, and providing steps on how to mitigate it.
This is the first I’ve heard of “Uptime Kuma”, an open source and self-hosted alternative to Pingdom. It includes a Prometheus exporter too, so you could gather all of your health checks into a single central system.
Ok, I’m a little biased (I work at Replicated), but I was pretty excited to see this post demonstrating how to use kURL, KOTS, and Prometheus to monitor remote air-gapped or on-prem Kubernetes deployments.
Tired of Kubernetes getting all the OpenTelemetry coverage? Here’s a very thorough example for setting up the OTel Collector for Hashicorp Nomad with a variety of different Observability services.
An approachable look at the Apache HTTP Server’s log formats. Not quite as exhaustive as the official docs, but a good starting point for anyone new to Apache administration.
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I promise this will be the last Log4j related article (maybe), but I love the idea of a honeypot for tracking exploit traffic. Someone please track this in Prometheus and report back with your findings. 🙏
If you’re hosting a bunch of Observability services behind the same subdomain, you might run into some rewrite rule obstacles. Here’s a pattern which the author is using for numerous namespace environments.
Although this story isn’t really about monitoring signals, it drives home a point near and dear to my heart – the work we do is only as successful as the customers it enables. Talk and collaborate with your customers to understand which signals are important to them.
Somehow I was completely oblivious to GitLab’s “DevOps Platform” initiative. This seems to explain their recent acquisition of Opstrace’s open source observability platform.
“Uptime Kuma is an open source monitoring tool that can be used to monitor the service uptime along with few other stats like Ping Status, Avg. Response time, uptime etc.”
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See you next week!
– Jason (@obfuscurity) Monitoring Weekly Editor