Discuss Linux Foundation CKA Exam Topic 3 Question 49

Score: 7%

Task

Reconfigure the existing deployment front-end and add a port specification named http exposing port 80/tcp of the existing container nginx.

Create a new service named front-end-svc exposing the container port http.

Configure the new service to also expose the individual Pods via a NodePort on the nodes on which they are scheduled.

AExplanation:
Solution:
kubectl get deploy front-end
kubectl edit deploy front-end -o yaml
#port specification named http
#service.yaml
apiVersion: v1
kind: Service
metadata:
name: front-end-svc
labels:
app: nginx
spec:
ports:
- port: 80
protocol: tcp
name: http
selector:
app: nginx
type: NodePort
# kubectl create -f service.yaml
# kubectl get svc
# port specification named http
kubectl expose deployment front-end --name=front-end-svc --port=80 --tarport=80 --type=NodePort

Suggested Answer: A

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17 comments · newest first

Carole 10 months ago

I thought NodePort was less secure than LoadBalancer, not sure about this approach.

Glenn 11 months ago

Nice, this should help with scaling the front-end!

Alpha 11 months ago

Wait, did they really specify the target port as 'tarport'? Seems like a typo.

Lisbeth 11 months ago

Totally agree, this is a solid way to manage traffic!

Raelene 11 months ago

Just a reminder, NodePort exposes the service on each node's IP.

Van 12 months ago

I remember creating a service YAML file for a project, but I’m uncertain if I need to include the `type: NodePort` in the spec section or if it’s optional.

Dottie 12 months ago

I believe the service needs to have a selector that matches the deployment labels, but I might be mixing that up with another topic.

Irma 12 months ago

I practiced a similar question where we had to expose a service using NodePort, but I can't recall the exact syntax for the `kubectl expose` command.

Kendra 1 year ago

I think I remember needing to edit the deployment to add the port specification, but I'm not sure if I need to use `kubectl edit` or if there's a better way.

Ludivina 1 year ago

I'm a little confused about the difference between using `kubectl expose` and creating a service YAML file. I'll need to review the options and decide which approach makes the most sense for this task.

Brandee 1 year ago

This seems pretty straightforward. I'm confident I can get this done quickly by following the steps in the explanation. The key will be making sure I get the service YAML file set up correctly.

Dyan 1 year ago

Okay, I've got a plan. First, I'll use `kubectl get deploy front-end` to inspect the existing deployment. Then I'll edit the deployment to add the port specification. After that, I'll create the new service using the provided YAML example.

Cristal 1 year ago

This looks like a straightforward deployment and service configuration task. I think I can handle this by following the steps in the explanation.

Frederick 1 year ago

Hmm, I'm a bit unsure about the exact syntax for the service YAML file. I'll need to double-check the Kubernetes documentation to make sure I get the formatting right.

Cherry 1 year ago

This one seems a bit tricky. I'll need to think it through carefully.

Shoshana 1 year ago

Configuring TCP Insight on the Citrix ADM could be a good option, as that might provide more detailed insights into the connection patterns. But I'm not sure if that alone would trigger the alerts we need.

Mozell 1 year ago

Okay, let me see. I think the key is to focus on the order of the steps. I'll try to visualize the process and see if that helps me identify the correct answer.

Linux Foundation CKA Exam - Topic 3 Question 49 Discussion