Helm Academy · Lesson

Parameterizing the Container Image

Wiring image repository and tag to values.

Why Parameterize the Image

A hard-coded image locks every user to one version. Wiring the image to values lets people pick the repository and tag they need.

By convention charts store the image as two fields: a repository and a tag. Keeping them separate makes version bumps clean.

# values.yaml
image:
  repository: nginx
  tag: "1.27"