Render one template

Render just one manifest to inspect output; note: path is relative to chart root

helm template <name> ./chart --show-only templates/deployment.yaml
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More helm commands

  • Template with version gates
    helm template <name> ./chart --kube-version 1.29 --api-versions policy/v1 --include-crds

    Render with fixed kube/API versions for CRD capability gates offline; includes CRDs

  • reuse-values pitfall
    helm upgrade --install <name> ./chart --reset-values -f values.yaml

    note: --reuse-values silently keeps stale overrides; --reset-values forces clean merge

  • Inspect release hooks
    helm get hooks <rel> -n <ns>

    Dump rendered pre/post-install/upgrade hooks to debug failing job ordering

  • Dry-run a rollback
    helm history <rel> -n <ns> && helm rollback <rel> <rev> --dry-run -n <ns>

    Preview which revision a rollback targets before committing to it

  • Update chart dependencies
    helm dependency update ./chart && helm dependency build ./chart

    update refreshes Chart.lock from repos; build fetches subcharts from existing lock

all 54 helm commands