return "Istiod"
	case Hybrid:
		return "Hybrid"
	case Envoy:
		return "Envoy"
	default:
		return "Unset"
	}
}

// ConvertToJwksFetchMode converts from string value mode to enum JwksFetchMode value.
// true and false are kept for backwards compatibility.
func ConvertToJwksFetchMode(mode string) JwksFetchMode {
	switch mode {
	case "istiod", "false":
		return Istiod
	case "hybrid", "true":
		return Hybrid

				"istiod/false - Istiod; hybrid/true - Envoy and fallback to Istiod if JWKs server is external; "+
				"envoy - Envoy.",
		).Get()
		return jwt.ConvertToJwksFetchMode(v)
	}()

	// IstiodServiceCustomHost allow user to bring a custom address or multiple custom addresses for istiod server
	// for examples: 1. istiod.mycompany.com  2. istiod.mycompany.com,istiod-canary.mycompany.com