Your First Install

Search, inspect, install, observe, uninstall

Charts for popular software are published by their projects and indexed on Artifact Hub, which you can search from the CLI with helm search hub. Add a repository with helm repo add, refresh its index with helm repo update, and search it with helm search repo. Before installing anything, read its values: helm show values prints every setting the chart supports with defaults, and helm show readme shows the docs. helm install creates the release; helm status shows its state and prints the chart's NOTES.txt (usually how to reach the app); helm get manifest shows the exact YAML that was applied. helm uninstall deletes the release's objects and its history, unless you pass --keep-history.

A complete first session

Installs an NGINX ingress controller from its official repository into its own namespace.

helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
helm repo update
helm search repo ingress-nginx --versions | head -5

helm show values ingress-nginx/ingress-nginx > default-values.yaml   # read before installing

helm install ingress ingress-nginx/ingress-nginx \
  --namespace ingress --create-namespace \
  --version 4.11.3 \
  --set controller.replicaCount=2

helm status ingress -n ingress
helm get manifest ingress -n ingress | less
helm uninstall ingress -n ingress

Always pin the chart version

Without --version, Helm installs the latest chart, so the same command can install something different next month. Pin versions in scripts and pipelines, and upgrade deliberately.

त्वरित जाँच: Which command shows the configurable settings of a chart before you install it?

• helm status
• helm history
• helm show values
• helm get manifest