Complete Kubernetes Monitoring Setup: Prometheus + Grafana + Alertmanager + Slack Integration

Learn how to set up a complete monitoring stack for Kubernetes! This step-by-step tutorial shows you how to deploy Prometheus for metrics collection, Grafana for visualization, and configure Alertmanager to send alerts directly to Slack.

Perfect for DevOps engineers and Kubernetes administrators who want to implement production-ready monitoring and alerting. All of the examples are deployed in a Minikube cluster, to make it easy to follow along.

What you'll learn:
✅ Installing Prometheus in Kubernetes
✅ Setting up Grafana dashboards
✅ Configuring Alertmanager rules
✅ Integrating Slack notifications
✅ Best practices for K8s monitoring

Useful links:
Blog post: https://k8slens.dev/blog/prometheus-grafana-kubernetes
GitHub repository: https://github.com/lensapp/blog-examples/tree/main/prometheus_and_grafana
Slack create applications: https://api.slack.com/apps/
Grafana community dashboards: https://grafana.com/grafana/dashboards/

Timestamps:
00:00 Intro
01:05 Create the monitoring namespaces
01:18 Install the Kube Prometheus Stack Helm Chart
02:20 Port-Forward to Prometheus and Grafana
02:55 Get initial credentials for Grafana
03:18 See dashboards and import a new dashboard
04:27 Create a Slack application for the AlertManager Integration
05:15 Modify the helm release to use Slack Notifications
06:30 Create an alert to be notified in Slack
07:30 See the alert rule in Prometheus, and then in Slack
08:17 Recap
09:05 Outro

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