Kubernetes Container Orchestration Helm and Package Management 5

Question 1

What is the Helm `--set` flag limitation compared to `-f` (values file)?

Accepted Answer

--set cannot express complex structures like arrays easily and becomes unwieldy for many values

Answer

While `--set` is convenient for simple overrides, it has awkward syntax for arrays and multiline strings, making values files preferable for complex configurations.

Question 2

What is Helmfile?

Accepted Answer

A third-party tool for declaratively managing multiple Helm releases as code

Answer

Helmfile is an open-source tool that lets you declare multiple Helm releases with their values and dependencies in a single `helmfile.yaml` for GitOps workflows.

Question 3

Which annotation on a Kubernetes resource tells Helm NOT to delete it when the release is uninstalled?

Accepted Answer

helm.sh/resource-policy: keep

Answer

The `helm.sh/resource-policy: keep` annotation instructs Helm to skip deletion of that resource during `helm uninstall` or upgrades that remove it.

Question 4

What does the `helm show values` command display?

Accepted Answer

The default values defined in the chart's values.yaml

Answer

`helm show values <chart>` prints the default `values.yaml` from a chart, which is useful for understanding available configuration options.

Question 5

In Helm template conditionals, what does `{{- if .Values.ingress.enabled }}` accomplish?

Accepted Answer

Renders the block only when ingress.enabled is truthy, stripping leading whitespace

Answer

The `{{- if }}` block renders its content only when the condition is truthy, and the leading dash trims whitespace before the action tag.

Kubernetes Container Orchestration Practice Test

Kubernetes Container Orchestration Practice Test

Kubernetes Container Orchestration Helm and Package Management 5