Prometheus, Grafana, and Alertmanager is the default stack when deploying a monitoring system. The Prometheus and Grafana bits are well documented, and there exist tons of open source approaches on how to make the best use of them. Alertmanager, on the other hand, is not highlighted as much, and even though the use case can be seen as fairly simple, it can be complex. The templating language has lots of features and capabilities. Alertmanager configuration, templates, and rules make a huge difference, especially when the team has an approach of ‘not staring at dashboards all day’. Detailed Slack alerts can be created with tons of information, such as dashboard links, runbook links, and alert descriptions, which go well together with the rest of a ChatOps stack. This post goes through how to make efficient Slack alerts.

Gitlab stores a vast majority of their functionality into their paid packages. Group webhooks is one of them and if your using a group runner, the group webhook becomes sought after. This is easily achievable without using a paid plan by creating reusable templates. Gitlab offers great functionality for configuring your CI with include and exclude functions. These can be reused to create a base template for all your CI jobs.