Kubernetes Container Orchestration Helm and Package Management 3

Question 1

What is the effect of using `helm upgrade --install` when a release does not yet exist?

Accepted Answer

It performs an install instead of an upgrade

Answer

`helm upgrade --install` is idempotent — it installs the release if it doesn't exist or upgrades it if it does.

Question 2

Which Helm template function is used to look up a value with a fallback default?

Accepted Answer

Answer

The `default` pipeline function returns the second argument when the first is empty or nil.

Question 3

What is stored in Helm's release secret (or configmap) in Kubernetes?

Accepted Answer

The rendered manifests and release metadata encoded in the secret

Answer

Helm stores release state (rendered manifests, metadata, status) as base64-encoded data in Kubernetes Secrets (default) or ConfigMaps.

Question 4

How do you render Helm chart templates locally without deploying them?

Accepted Answer

helm template myrelease ./chart

Answer

`helm template` renders chart templates locally and outputs the resulting Kubernetes YAML without contacting the cluster.

Question 5

What is a Helm subchart (also called a dependency chart)?

Accepted Answer

A chart packaged within or declared as a dependency of a parent chart

Answer

Subcharts are dependencies declared in `Chart.yaml` under `dependencies`, downloaded into the `charts/` directory.

Kubernetes Container Orchestration Practice Test