Kubernetes is the leading container orchestration tool that has helped engineers around the world significantly reduce cloud computing costs since it was released as open source by Google in 2014. Kubernetes also provides a robust framework for deploying applications.

The Kubernetes management tool is rapidly becoming an integral part of anyone who wants to continually monitor, test, export, and create intuitive container dashboards. This post presents some of the best free, paid, and open source Kubernetes management tools that can simplify the deployment, execution, and testing of your following container-driven projects:

Kube-prometheus

Kube-prometheus collects all the components needed to monitor a Kubernetes cluster in one package. At its core is not only Prometheus, but the Prometheus operator, which simplifies the deployment and configuration of Alertmanager.

Add Grafana, some metric collectors, and a standard set of dashboards and alert rules to get a complete monitoring solution. However, there is no one-size-fits-all solution for monitoring Kubernetes clusters.

kube-prometheus is based on Jsonnet and is built in the form of a library where you can build your own custom solutions. You can change, replace, or add anything.

Karpenter

Karpenter is a flexible, high-performance, open source Kubernetes cluster autoscaler built on AWS. Helps improve application availability and cluster efficiency by quickly launching appropriately sized computing resources in response to changing application loads.

Karpenter also provisions just-in-time compute resources to meet the needs of your application and immediately automatically optimizes your cluster's compute resource needs to reduce costs and improve performance.

Karpenter is an open source project licensed under Apache License 2.0.

Devtron

Devtron was introduced to provide a unified interface and seamless experience that is separate and integrated with a variety of popular open source tools throughout its life cycle.

It is designed as a self-service platform for the operation and maintenance of application (AppOps) for developers on Kubernetes.

Here are some of the amazing features that the Devtron offers:

• Zero code workflow for software delivery
• Multi-cloud deployment
• Easy DevSecOps integration
• Application debug dashboard
• Enterprise-grade security and compliance
• GitOps compatible

KEDA

The KEDA is a Kubernetes-based event-driven autoscaler. KEDA allows you to control the scaling of each Kubernetes container based on the number of events it processes.

The KEDA is a single purpose lightweight component that you can add to any Kubernetes cluster. KEDA works with standard Kubernetes components such as the Horizontal Pod Autoscaler to extend functionality without overwriting or duplicating.

KEDA allows you to explicitly scale your app to event-driven while keeping other apps working. This makes KEDA a flexible and secure option to run with any number of other Kubernetes applications or frameworks.

Kyverno

Kyverno is a policy engine built for Kubernetes. With Kyverno, policies are managed as Kubernetes resources and you don't need a new language to create policies. This allows you to manage your policies using familiar tools such as kubectl, git, and kustomize.

Kyverno policies can validate, modify, and generate Kubernetes resources to secure your OCI image supply chain. You can use the Kyverno CLI to test your policies and validate your resources as part of your CI / CD pipeline.

Simply put, Kyverno is Kubernetes' policy engine. This allows you to create policies for Kubernetes clusters at different levels. This allows you to validate, modify, and create resources based on the policies you define. With the recent deprecation of the
Pod Security Policy (PSP), policy management has become even more important for clusters from a security perspective.

Kyverno makes it very easy because you can choose from over 75 pre-built policies or create custom YAML files to create your own policies.

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Above blog is submitted as part of 'Devtron Blogathon 2022' - https://devtron.ai/
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