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Helm uses a packaging format called Charts. A Chart is a collection of files and templates that describes Kubernetes resources.
Charts can be simple, describing something like a standalone web server (which is what we are going to create), but they can also be more complex, for example, a chart that represents a full web application stack, including web servers, databases, proxies, etc.
Instead of installing Kubernetes resources manually via
kubectl, one can use
Helm to install pre-defined Charts faster, with less chance of typos or other
Chart repositories change frequently due to updates and new additions. To keep Helm’s local list updated with all these changes, we need to occasionally run the repository update command.
To update Helm’s local list of Charts, run:
# first, add the default repository, then update helm repo add stable https://charts.helm.sh/stable helm repo update
And you should see something similar to:
Next, we’ll search for the nginx web server Chart.