Helm in Practice

Building the Chart

Download Dependencies

Once everything is in place, download the chart dependencies using:

helm dependency build $HOME/todowithdb-chart

As a reminder, this command runs the following steps:

1. Reads the dependencies section in Chart.yaml
2. Downloads each chart from its repository
3. Stores them as .tgz files in the charts/ directory
4. Creates a Chart.lock file that pins exact versions

You can verify the dependency was downloaded:

ls -la $HOME/todowithdb-chart/charts/

You should see the following file:

postgresql-16.4.3.tgz

Lint the Chart

Before packaging, it's good practice to lint the chart to catch common issues:

helm lint $HOME/todowithdb-chart

Expected output:

==> Linting /home/user/todowithdb-chart
[INFO] Chart.yaml: icon is recommended

1 chart(s) linted, 0 chart(s) failed