NIC: http-redirect-code ConfigMap key and nginx.org/ssl-redirect annotation

[haywoodsh]

Adds documentation for the configurable HTTP redirect codes feature and the nginx.org/ssl-redirect annotation.

Proposed changes

Checklist

Before sharing this pull request, I completed the following checklist:

• I read the Contributing guidelines
• My branch adheres to the Git conventions
• My content changes adhere to the F5 NGINX Documentation style guide
• If my changes involve potentially sensitive information¹, I have assessed the possible impact
• I have waited to ensure my changes pass tests, and addressed any discovered issues

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[Copilot]

Pull request overview

This PR adds documentation for configurable HTTP redirect codes and updates SSL redirect annotation references. The changes enable users to customize the HTTP status code used for HTTPS redirects (supporting 301, 302, 307, 308) via the new http-redirect-code ConfigMap key and nginx.org/http-redirect-code annotation.

Key changes:

• Introduces the http-redirect-code ConfigMap key to allow customization of HTTP redirect status codes
• Updates nginx.org/ssl-redirect annotation to replace the deprecated ingress.kubernetes.io/ssl-redirect
• Clarifies redirect behavior in annotations and ConfigMap documentation

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
content/nic/install/migrate-ingress-nginx.md	Updates migration guide to reference the new nginx.org/ssl-redirect annotation and adds note about nginx.org/redirect-to-https for force-ssl-redirect behavior
content/nic/configuration/virtualserver-and-virtualserverroute-resources.md	Adds http-redirect-code to the list of customizable ConfigMap keys for VirtualServer resources
content/nic/configuration/ingress-resources/advanced-configuration-with-annotations.md	Documents the new http-redirect-code annotation, updates redirect annotation descriptions, and deprecates ingress.kubernetes.io/ssl-redirect
content/nic/configuration/global-configuration/configmap-resource.md	Documents the http-redirect-code ConfigMap key and updates redirect descriptions to reference the new configuration option

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