diff --git a/charts/cert-manager-webhook-gandi/templates/_helpers.tpl b/charts/cert-manager-webhook-gandi/templates/_helpers.tpl
new file mode 100644
index 0000000..643eef6
--- /dev/null
+++ b/charts/cert-manager-webhook-gandi/templates/_helpers.tpl
@@ -0,0 +1,48 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "cert-manager-webhook-gandi.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "cert-manager-webhook-gandi.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "cert-manager-webhook-gandi.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{- define "cert-manager-webhook-gandi.selfSignedIssuer" -}}
+{{ printf "%s-selfsign" (include "cert-manager-webhook-gandi.fullname" .) }}
+{{- end -}}
+
+{{- define "cert-manager-webhook-gandi.rootCAIssuer" -}}
+{{ printf "%s-ca" (include "cert-manager-webhook-gandi.fullname" .) }}
+{{- end -}}
+
+{{- define "cert-manager-webhook-gandi.rootCACertificate" -}}
+{{ printf "%s-ca" (include "cert-manager-webhook-gandi.fullname" .) }}
+{{- end -}}
+
+{{- define "cert-manager-webhook-gandi.servingCertificate" -}}
+{{ printf "%s-webhook-tls" (include "cert-manager-webhook-gandi.fullname" .) }}
+{{- end -}}
\ No newline at end of file