Ingress resource definition in Kubernetes - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is an Ingress resource in Kubernetes?

An Ingress resource manages external access to services inside a Kubernetes cluster, usually HTTP. It defines rules to route traffic from outside to services inside the cluster.

beginner

Which Kubernetes object does an Ingress resource route traffic to?

Ingress routes traffic to Kubernetes Services, which then forward traffic to Pods.

intermediate

What is the purpose of the 'host' field in an Ingress rule?

The 'host' field specifies the domain name to match for routing traffic. It helps direct requests to the correct backend service based on the requested hostname.

intermediate

Explain the 'path' and 'pathType' fields in an Ingress rule.

'path' defines the URL path to match for routing. 'pathType' specifies how the path is matched, such as 'Prefix' (matches path prefix) or 'Exact' (matches exact path).

beginner

What is the role of an Ingress controller in Kubernetes?

An Ingress controller watches Ingress resources and configures the underlying load balancer or proxy to route traffic according to the Ingress rules.

What does an Ingress resource primarily manage in Kubernetes?

A Container image building

B External HTTP/S traffic routing to services

C Storage volume allocation

D Pod scheduling inside nodes

Ingress resources manage external HTTP/S traffic routing to services inside the cluster.

Which field in an Ingress rule specifies the domain name to match?

A backend

B serviceName

C path

D host

The 'host' field specifies the domain name to match for routing traffic.

What does the 'pathType' field in an Ingress rule define?

A How the URL path is matched

B The protocol used

C The type of backend service

D The port number

'pathType' defines how the URL path is matched, such as 'Prefix' or 'Exact'.

An Ingress controller is responsible for:

A Watching Ingress resources and configuring routing

B Managing persistent volumes

C Creating Pods

D Building container images

Ingress controllers watch Ingress resources and configure routing accordingly.

Which Kubernetes object does Ingress route traffic to?

A Nodes

B Pods directly

C Services

D ConfigMaps

Ingress routes traffic to Services, which then forward to Pods.

Describe the main components of a Kubernetes Ingress resource and their roles.

Think about how traffic is matched and routed.

Explain how an Ingress resource and an Ingress controller work together to route external traffic.

Consider the division of responsibilities.