Update Nginx version for App routing add on

Question

We are using a app routing add  on AKS version 1.32 which has a nginx image of version 1.13.1 which has vulnerabilities. We wanted to updated the nginx version. Can this be achieved by updating the add-on?

Answer 1

Hello LIC CC,

You cannot directly upgrade the NGINX image version used by the AKS Application Routing add-on, as it is a fully managed component maintained by Azure. The NGINX Ingress Controller version is tied to the specific add-on release, and manual customization of the container image is not supported.

To use a newer NGINX version, you must upgrade the Application Routing add-on itself. However, please note that Azure manages the release cycle, and the latest add-on version may not always include the most recent upstream NGINX release.

Use CLI command-

az aks approuting update --resource-group <RG> --name <ClusterName>

If you require complete control over the NGINX version (for compliance, security, or customization), the recommended approach is to remove the Application Routing add-on and deploy your own NGINX Ingress Controller via Helm or an AKS-managed ingress solution.

If you have any further queries, do let us know.

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