Installing Helm in Kubernetes - Practice Exercises

Challenge - 5 Problems

💻 Command Output

intermediate

Helm Installation Verification

You have just installed Helm on your system. Which command will correctly show the installed Helm version?

A helm version --short

B helm get version

C helm show version

D helm version -v

💡 Hint

Think about the Helm command that displays version info in a concise way.

The command 'helm version --short' outputs the Helm client version in a short format. Other options are invalid or do not exist.

❓ Configuration

intermediate

Adding a Helm Repository

Which command correctly adds the official stable Helm chart repository named 'stable'?

A helm repo install stable https://charts.helm.sh/stable

B helm repo add stable https://charts.helm.sh/stable

C helm add repo stable https://charts.helm.sh/stable

D helm repo create stable https://charts.helm.sh/stable

💡 Hint

The command to add a repository starts with 'helm repo add'.

The correct syntax to add a Helm repository is 'helm repo add '. Other options use invalid subcommands.

🔀 Workflow

advanced

Helm Installation on Linux Using Script

You want to install Helm on a Linux machine using the official installation script. Which command sequence correctly downloads and runs the script safely?

A curl https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | bash

B wget https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 -O - | sh

C wget https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 -O - | bash

D curl https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | sh

💡 Hint

The official script uses bash and is recommended to be run with curl piped to bash.

The official Helm install script is designed to be run with 'curl ... | bash'. Using 'sh' or wget without proper piping causes errors or unexpected behavior.

❓ Troubleshoot

advanced

Helm Command Not Found After Installation

After installing Helm on your system, running 'helm version' returns 'command not found'. What is the most likely cause?

A The Helm client version is incompatible with the OS.

B The Helm installation script failed due to network issues.

C The Kubernetes cluster is not running.

D The Helm binary directory is not in the system PATH environment variable.

💡 Hint

Think about what allows the shell to find commands by name.

If 'helm' command is not found, it usually means the shell cannot locate the Helm binary because its directory is not in the PATH variable. Other options do not cause 'command not found'.

✅ Best Practice

expert

Secure Helm Installation Practice

Which practice is best to ensure security when installing Helm using the official installation script?

A Install Helm using a package manager without checking the source.

B Run the installation script directly from the internet without verification.

C Download the script, verify its checksum or signature, then run it.

D Use an unofficial Helm installation script from a third-party source.

💡 Hint

Verifying the source and integrity of scripts is a key security step.

Downloading the script first and verifying its checksum or signature ensures the script has not been tampered with, which is a best security practice. Running scripts blindly or from untrusted sources is risky.