#!/usr/bin/env bash
# install-helm.sh
# Helm — Package manager for Kubernetes — templated manifests as versioned charts.
# Target: Ubuntu / Debian. Safe to re-run.
# Source guide: devops-hub/tools/helm.html

set -euo pipefail

if [[ $EUID -eq 0 ]]; then
  echo "Run this as a regular sudo-capable user, not root." >&2
  exit 1
fi

echo "==> Install prerequisites"
sudo apt-get install -y curl gpg apt-transport-https

echo "==> Add the Helm GPG key and repo"
curl https://baltocdn.com/helm/signing.asc | gpg --dearmor | sudo tee /usr/share/keyrings/helm.gpg > /dev/null
echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/helm.gpg] https://baltocdn.com/helm/stable/debian/ all main" | sudo tee /etc/apt/sources.list.d/helm-stable-debian.list

echo "==> Install Helm"
sudo apt-get update
sudo apt-get install -y helm

echo "==> Verify"
helm version

echo "==> Done. Helm installation finished."