The most common problems and outages in a Kubernetes cluster come from coreDNS, so learning how to monitor coreDNS is crucial. Imagine that your frontend application suddenly goes down. After some time investigating, you discover it’s not resolving the backend endpoint because the DNS keeps returning 500 error codes. The sooner you can get to this conclusion, the faster you can recover your application.
Organizations today use a wide range of apps and services as part of their IT infrastructure. This includes a combination of private and public clouds, third-party apps, security services, databases, and so on. With such a complex infrastructure in place, organizations face the challenge of monitoring the uptime of all these services to ensure continuous business availability.
When Mattermost first started, it didn’t make sense for us to have an office; it was just myself and one other person. They were writing code the whole time, and I was on the phone the whole time, and being in the office we ended up interrupting each other. So eventually we started working from our homes and only got together when we needed to catch up.
