Alerting System

Uptime is important for a backend, we need to be notified when shit hits the fan. The first step of figuring out the service isn't working is to check its status regularly.

However, placing the alerting system on the same machine as the service is a bit unwise. If the server crashes, it takes you alerting system with it. The only way to efficiently achieve this is to implement distributed alerting. We're cheap, so we don't want to pay for someone like PagerDuty/Datadog/etc, enter DIY solutions :D