istio.io/content/en/docs/reference/config/analysis/ist0123/index.md

title	layout	owner	test
NamespaceMultipleInjectionLabels	analysis-message	istio/wg-user-experience-maintainers	no

This message occurs when a namespace specifies Istio sidecar auto-injection using both the new and legacy style labels.

Example

You will receive this message:

{{< text plain >}} Warning [IST0123] (Namespace busted) The namespace has both new and legacy injection labels. Run 'kubectl label namespace busted istio.io/rev-' or 'kubectl label namespace busted istio-injection-' {{< /text >}}

when your cluster has following namespace:

{{< text yaml >}} apiVersion: v1 kind: Namespace metadata: name: busted labels: istio-injection: enabled istio.io/rev: canary {{< /text >}}

In this example, the namespace busted uses both old-style and new-style injection labels.

How to resolve

• Remove the istio-injection label
• Remove the istio.io/rev label