What is Helm

• It's a package manager for K8s, it can package yaml files and distribute them in public and private repositories.
• It is a templating engine, it can get values from a values.yaml (or --set flag) and place them in the template.

Use cases

• For different applications with the same template
• For same applications across different environments

Helm charts

An helm chart is a bundle of YAML files with all configurations needed to run a certain application in K8s.

Directory structure

• mychart (name of the chart)
  • Chart.yaml (meta info about the chart)
  • values.yaml (values for the template files)
  • charts/ (chart dependencies)
  • templates/ (the template files) s

When executing helm install <chartname> the template files will be filles with the values from values.yaml