Which Helm command installs a chart from the local directory into the cluster?

• A. helm install myphp ./path-to-chart
• B. helm install myphp .
• C. helm install myphp charts/
• D. helm apply myphp

Answer: (B)

When you want to install a chart you have on your local machine, Helm needs a reference to that chart. Using the current directory as the reference tells Helm to look for a Chart.yaml and the chart files in where you are right now. So the command that installs the chart from the local directory is the one that uses a dot as the chart reference: helm install myphp . This is the simplest and most direct way to install the chart you’re currently in.

Other forms would only work if the chart really resides in the specified subpath (like a subdirectory path-to-chart or charts/), which isn’t the general case for “the local directory.” And helm apply isn’t a valid Helm command for installing charts.