Installing charts in Kubernetes - Quick Revision & Summary

Recall & Review

beginner

What is a Helm chart in Kubernetes?

A Helm chart is a package that contains all the resource definitions needed to run an application or service inside a Kubernetes cluster.

beginner

Which command installs a Helm chart into a Kubernetes cluster?

The command helm install <release-name> <chart-name> installs a Helm chart into the cluster.

intermediate

What does the --namespace flag do when installing a Helm chart?

The --namespace flag specifies the Kubernetes namespace where the chart resources will be installed.

intermediate

How do you update a Helm chart after it is installed?

Use helm upgrade <release-name> <chart-name> to update an installed Helm chart with new changes.

beginner

What is the purpose of the helm repo add command?

It adds a remote Helm chart repository so you can install charts from that source.

Which command installs a Helm chart named 'nginx' with release name 'webserver'?

A helm install webserver nginx

B kubectl install nginx webserver

C helm create webserver nginx

D kubectl apply -f nginx

The correct syntax to install a Helm chart is 'helm install '.

What does the helm repo update command do?

A Upgrades an installed chart

B Updates the local cache of chart repositories

C Installs a new chart

D Deletes a chart repository

It refreshes the local list of charts available from added repositories.

How do you specify a namespace when installing a Helm chart?

A helm install <release> <chart> --namespace <name>

B kubectl install <chart> --namespace <name>

C helm create <namespace>

D helm upgrade <release> --namespace <name>

The '--namespace' flag is used with 'helm install' to set the target namespace.

If you want to change the configuration of an installed chart, which command should you use?

A helm delete

B helm install

C helm upgrade

D kubectl apply

Use 'helm upgrade' to apply configuration changes to an existing release.

What is the first step before installing charts from a new Helm repository?

A Run 'kubectl create namespace'

B Run 'helm install' directly

C Delete existing charts

D Add the repository with 'helm repo add'

You must add the repository to Helm before installing charts from it.

Explain the steps to install a Helm chart into a Kubernetes cluster.

Think about preparing the source and then running the install command.

Describe how you would update an existing Helm chart installation with new settings.

Upgrading is like reinstalling but keeps the release name.