Best Open-Source Kubernetes Monitoring Tools and Security Tools

Kubernetes is a portable, extensible, open-source platform for managing containerized workloads and services, that facilitates both declarative configuration and automation. It has a large, rapidly growing ecosystem. Kubernetes services, support, and tools are widely available.


Kubernetes provides three core components for container orchestration:

  • Control plane – The orchestration component responsible for the management of Kubernetes components such as clusters, nodes, and pods, and the networking among them.

  • Management plane – The administration layer, with the components that administrators use to interact with Kubernetes. Such components include the Kubernetes API, Custom Resource Definitions (CRDs), manifests, Helm charts, and so on.

  • Data plane – The traffic‑handling layer, with overlay and underlay networks among nodes, pods, and containers, as well as application services (apps and containers) which rely on the networking components. An application container in one pod communicating with an application container in another pod, using gRPC for example, is participating in the data plane.


Open-Source Kubernetes Monitoring Tools


1. Sematext

Sematext Monitoring is a monitoring solution for both traditional and microservice-based applications deployed on Kubernetes, capturing, metrics, and events in real time. You can then structure, visualize and analyze this data, set alerts on it, etc. Sematext Monitoring is part of Sematext Cloud, a cloud monitoring solution that takes care of both Kubernetes monitoring and logging without running any storage or monitoring infrastructure yourself. Sematext allows you to set up alerts on both logs and metrics, build log analytics reports and customizable monitoring dashboards. It making it much easier and faster to point out problematic pods than using traditional monitoring or command-line tools. When alerts are triggered you get notified through email, Slack, or any other notification hook of your choosing.


Pros:

  • Easy to install

  • Auto-discovery finds services and logs and monitor them without installing anything

  • Built-in alerting and anomaly detection

  • Default monitoring dashboards and alert rules to save time

  • Offered as SaaS, no infrastructure to manage


2. Kubernetes Dashboard

Kubernetes Dashboard is a web-based UI add-on for Kubernetes clusters. It provides a simple way to manage, troubleshoot and monitor your environment. You can use the Kubernetes Dashboard to see basic metrics related to memory and CPU usage statistics across all of your nodes and to monitor the health of workloads (pods, deployments, replica sets, cron jobs, etc.)


Pros:

  • Easy to install