securing-helm-chart-deployments

# Securing Helm Chart Deployments ## Overview Helm is the Kubernetes package manager. Securing Helm deployments requires validating chart provenance, scanning templates for security misconfigurations, enforcing pod security contexts, managing secrets securely, and controlling RBAC for Helm operations. ## When to Use - When deploying or configuring securing helm chart deployments capabilities in your environment - When establishing security controls aligned to compliance requirements - When building or improving security architecture for this domain - When conducting security assessments that require this implementation ## Prerequisites - Helm 3.12+ installed - kubectl with cluster access - GnuPG for chart signing/verification - kubesec or checkov for template scanning ## Chart Provenance and Integrity ### Sign a Helm Chart ```bash # Generate GPG key for signing gpg --full-generate-key # Package and sign chart helm package ./mychart --sign --key "helm-signing@example.com" --keyring ~/.gnupg/pubring.gpg # Verify chart signature helm verify mychart-0.1.0.tgz --keyring ~/.gnupg/pubring.gpg ``` ### Verify Chart Before Install ```bash # Verify chart from repository helm pull myrepo/mychart --verify --keyring /path/to/keyring.gpg # Check chart provenance file cat mychart-0.1.0.tgz.prov ``` ## Template Security Scanning ### Render and Scan Templates ```bash # Render templates without deploying helm template myrelease ./mychart --values values-prod.yaml > rendered.ya...