Quiz
Task
Create a new HorizontalPodAutoscaler (HPA ) named apache-server in the autoscale
namespace. This HPA must target the existing Deployment called apache-server in the
autoscale namespace.
Set the HPA to aim for 50% CPU usage per Pod . Configure it to have at least 1 Pod and no more than
4 Pods . Also, set the downscale stabilization window to 30 seconds.
Quiz
Monitor the logs of pod foo and:
Extract log lines corresponding to error
unable-to-access-website
Write them to/opt/KULM00201/foo
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Step 0: Set the correct Kubernetes context
If you're given a specific context (k8s in this case), you must switch to it:
kubectl config use-context k8s
Skipping this can cause you to work in the wrong cluster/namespace and cost you marks.
Step 1: Identify the namespace of the pod foo
First, check if foo is running in a specific namespace or in the default namespace.
kubectl get pods --all-namespaces | grep foo
Assume the pod is in the default namespace if no namespace is mentioned.
Step 2: Confirm pod foo exists and is running
kubectl get pod foo
You should get output similar to:
NAME READY STATUS RESTARTS AGE
foo 1/1 Running 0 1h
If the pod is not running, logs may not be available.
Step 3: View logs and filter specific error lines
We’re looking for log lines that contain:
unable-to-access-website
Command:
kubectl logs foo | grep "unable-to-access-website"
Step 4: Write the filtered log lines to a file
Redirect the output to the required path:
kubectl logs foo | grep "unable-to-access-website" > /opt/KULM00201/foo
This creates or overwrites the file /opt/KULM00201/foo with the filtered logs.
You may need sudo if /opt requires elevated permissions. But in most exam environments, you're
already the root or privileged user.
Step 5: Verify the output file (optional but smart)
Check that the file was created and has the correct content:
cat /opt/KULM00201/foo
Final Answer Summary:
kubectl config use-context k8s
kubectl logs foo | grep "unable-to-access-website" > /opt/KULM00201/foo
Quiz
List all persistent volumes sorted by capacity, saving the full kubectl output to
/opt/KUCC00102/volume_list. Use kubectl 's own functionality for sorting the output, and do not
manipulate it any further.
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Quiz
Ensure a single instance of pod nginx is running on each node of the Kubernetes cluster where nginx
also represents the Image name which has to be used. Do not override any taints currently in place.
Use DaemonSet to complete this task and use ds-kusc00201 as DaemonSet name.
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F:\Work\Data Entry Work\Data Entry\20200827\CKA\3 E.JPG
Quiz
Perform the following tasks:
Add an init container to hungry-bear (which has been defined in spec file /opt/KUCC00108/pod-spec-
KUCC00108.yaml)
The init container should create an empty file named/workdir/calm.txt
If /workdir/calm.txt is not detected, the pod should exit
Once the spec file has been updated with the init container definition, the pod should be created
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Quiz
Create a pod named kucc8 with a single app container for each of the
following images running inside (there may be between 1 and 4 images specified):
nginx + redis + memcached.
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Quiz
Schedule a pod as follows:
Name: nginx-kusc00101
Image: nginx
Node selector: disk=ssd
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Quiz
Create a deployment as follows:
Name: nginx-app
Using container nginx with version 1.11.10-alpine
The deployment should contain 3 replicas
Next, deploy the application with new version 1.11.13-alpine, by performing a rolling update.
Finally, rollback that update to the previous version 1.11.10-alpine.
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Quiz
Create and configure the service front-end-service so it's accessible through NodePort and routes to
the existing pod named front-end.
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Quiz
Create a pod as follows:
Name: mongo
Using Image: mongo
In a new Kubernetes namespace named: my-website
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