Conditional Blocks with if and else

The condition is usually a value the user sets. Flip ingress.enabled to true in values.yaml and the wrapped manifest suddenly appears.

Every if must be paired with an {{ end }}. Forget it and Helm throws an unterminated-block error when it tries to render the chart.

Want a fallback? Add an {{ else }} branch. Helm renders the first block when true, otherwise it renders the else block instead.

For several cases, chain conditions with {{ else if }}. Helm checks each in order and renders the first branch whose condition is true.

An if is true unless the value is empty: false, zero, an empty string, or an empty list all read as false in a condition.

A common pattern wraps one optional field, not a whole resource. Here the annotation only renders when the user provides a value for it.

An if block leaves behind blank lines where the action used to sit. That whitespace can break YAML, so you will soon learn to trim it. 🧹

Render with different values and watch which branch wins. helm template with --set lets you confirm each condition before you ever deploy.

If a user never sets the flag, it reads as empty and your if stays false. That is why charts ship a sensible default for it in values.yaml.

You can now gate YAML with if, add else and else if branches, and remember the closing {{ end }}. Conditional rendering unlocked! 🎯