components.%sGateways[name=%s].k8s.replicaCount should not b

Error message

components.%sGateways[name=%s].k8s.replicaCount should not be set when values.gateways.istio-%sgateway.autoscaleEnabled is true

What it means

Error "components.%sGateways[name=%s].k8s.replicaCount should not be set when values.gateways.istio-%sgateway.autoscaleEnabled is true" thrown in istio/istio.

Source

Thrown at operator/pkg/apis/validation/validation.go:302

// checkAutoScaleAndReplicaCount warns when autoscaleEnabled is true and k8s replicaCount is set.
func checkAutoScaleAndReplicaCount(values *apis.Values, spec apis.IstioOperatorSpec) (Warnings, util.Errors) {
	if spec.Components == nil {
		return nil, nil
	}
	var warnings Warnings
	if values.GetPilot().GetAutoscaleEnabled().GetValue() {
		if spec.Components.Pilot != nil && spec.Components.Pilot.Kubernetes != nil && spec.Components.Pilot.Kubernetes.ReplicaCount > 1 {
			warnings = append(warnings,
				fmt.Errorf("components.pilot.k8s.replicaCount should not be set when values.pilot.autoscaleEnabled is true"))
		}
	}

	validateGateways := func(gateways []apis.GatewayComponentSpec, gwType string) {
		const format = "components.%sGateways[name=%s].k8s.replicaCount should not be set when values.gateways.istio-%sgateway.autoscaleEnabled is true"
		for _, gw := range gateways {
			if gw.Kubernetes != nil && gw.Kubernetes.ReplicaCount != 0 {
				warnings = append(warnings, fmt.Errorf(format, gwType, gw.Name, gwType))
			}
		}
	}

	if values.GetGateways().GetIstioIngressgateway().GetAutoscaleEnabled().GetValue() {
		validateGateways(spec.Components.IngressGateways, "ingress")
	}

	if values.GetGateways().GetIstioEgressgateway().GetAutoscaleEnabled().GetValue() {
		validateGateways(spec.Components.EgressGateways, "egress")
	}

	return warnings, nil
}

// checkServicePorts validates Service ports. Specifically, this currently
// asserts that all ports will bind to a port number greater than 1024 when not
// running as root.

View on GitHub (pinned to 8dc789c5cf)

When it happens

Trigger: Thrown at operator/pkg/apis/validation/validation.go:302 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of istio/istio@8dc789c5cf (2026-08-15). Data as JSON: /api/errors/9f3d21446659d6d9. Report an issue: GitHub.