What are Helm charts and what are they used for?

Helm charts are packages for managing applications in Kubernetes. They contain a set of files describing Kubernetes resources (Deployment, Service, ConfigMap, etc.) and templates for their parameterization.

Helm is used for:

• Simplifying the installation and updating of applications in Kubernetes.
• Managing configurations using templates and variables.
• Versioning and rolling back application releases.

Example of using a Helm chart:

helm install myapp ./mychart

where mychart is the directory containing the application description. This allows for quick and convenient deployment of complex applications with many components in Kubernetes.