Ingress annotations for customization in Kubernetes - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of annotations in a Kubernetes Ingress resource?

Annotations add extra settings or instructions to customize how the Ingress controller handles traffic, like enabling SSL or setting timeouts.

beginner

How do you specify an annotation in a Kubernetes Ingress YAML file?

Under the metadata section, use the 'annotations' field with key-value pairs, for example:<br>

metadata:<br>  annotations:<br>    nginx.ingress.kubernetes.io/rewrite-target: /

beginner

Name one common annotation used to enable HTTPS redirect in NGINX Ingress.

The annotation 'nginx.ingress.kubernetes.io/ssl-redirect: "true"' forces HTTP requests to redirect to HTTPS.

intermediate

What does the annotation 'nginx.ingress.kubernetes.io/proxy-read-timeout' control?

It sets how long the NGINX Ingress controller waits for a response from the backend service before timing out.

advanced

Why might you use the annotation 'nginx.ingress.kubernetes.io/configuration-snippet'?

To add custom NGINX configuration snippets directly into the Ingress, allowing advanced tweaks not covered by standard annotations.

Where do you place annotations in a Kubernetes Ingress manifest?

A Under spec

B Under status

C Under metadata

D Under containers

Annotations belong under the metadata section of the Ingress manifest.

Which annotation enables HTTPS redirect in NGINX Ingress?

A nginx.ingress.kubernetes.io/proxy-read-timeout: "30"

B nginx.ingress.kubernetes.io/rewrite-target: /

C nginx.ingress.kubernetes.io/configuration-snippet

D nginx.ingress.kubernetes.io/ssl-redirect: "true"

The ssl-redirect annotation forces HTTP to HTTPS redirection.

What does 'nginx.ingress.kubernetes.io/rewrite-target' do?

A Sets the backend service port

B Changes the URL path before forwarding to backend

C Defines the TLS secret name

D Specifies the Ingress class

It rewrites the incoming request path to a different path for the backend.

If you want to increase the timeout waiting for backend response, which annotation is used?

A nginx.ingress.kubernetes.io/proxy-read-timeout

B nginx.ingress.kubernetes.io/ssl-redirect

C nginx.ingress.kubernetes.io/rewrite-target

D nginx.ingress.kubernetes.io/configuration-snippet

proxy-read-timeout controls how long NGINX waits for backend response.

Can annotations be used to add custom NGINX config snippets in Ingress?

A Yes, using nginx.ingress.kubernetes.io/configuration-snippet

B No, annotations cannot customize NGINX

C Only by editing the NGINX config file directly

D Only through ConfigMaps

The configuration-snippet annotation allows adding custom NGINX config inside Ingress.

Explain how annotations customize the behavior of a Kubernetes Ingress controller.

Think about how you add special instructions to a recipe.

List and describe three common NGINX Ingress annotations and their effects.

Focus on security, URL handling, and timeout settings.