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Question 1

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Context A web application requires a specific version of redis to be used as a cache. Task Create a pod with the following characteristics, and leave it running when complete: • The pod must r

Question 2

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Context You are tasked to create a secret and consume the secret in a pod using environment variables as follow: Task • Create a secret named another-secret with a key/value pair; key1/value4

Question 3

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Context Task You are required to create a pod that requests a certain amount of CPU and memory, so it gets scheduled to-a node that has those resources available. • Create a pod named nginx-res

Question 4

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Context You are tasked to create a ConfigMap and consume the ConfigMap in a pod using a volume mount. Task Please complete the following: • Create a ConfigMap named another-config containing t

Question 5

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Context Your application’s namespace requires a specific service account to be used. Task Update the app-a deployment in the production namespace to run as the restrictedservice service account

Question 6

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Context A pod is running on the cluster but it is not responding. Task The desired behavior is to have Kubemetes restart the pod when an endpoint returns an HTTP 500 onthe /healthz endpoint. Th

Question 7

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Context You sometimes need to observe a pod's logs, and write those logs to a file for further analysis. Task Please complete the following; • Deploy the counter pod to the cluster using the p

Question 8

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Context It is always useful to look at the resources your applications are consuming in a cluster. Task • From the pods running in namespace cpu-stress , write the name only of the pod that is

Question 9

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Context Anytime a team needs to run a container on Kubernetes they will need to define a pod within which to run the container. Task Please complete the following: • Create a YAML formatted pod

Question 10

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Context Task Create a new deployment for running.nginx with the following parameters; • Run the deployment in the kdpd00201 namespace. The namespace has already been created • Name the deploym

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Context You are tasked to create a ConfigMap and consume the ConfigMap in a pod using a volume mount. Task Please complete the following: • Create a ConfigMap named another-config containing the key/value pair: key4/value3 • start a pod named nginx-configmap containing a single container using the nginx image, and mount the key you just created into the pod under directory /also/a/path

Context Task Create a new deployment for running.nginx with the following parameters; • Run the deployment in the kdpd00201 namespace. The namespace has already been created • Name the deployment frontend and configure with 4 replicas • Configure the pod with a container image of lfccncf/nginx:1.13.7 • Set an environment variable of NGINX__PORT=8080 and also expose that port for the container above

Context Task: The pod for the Deployment named nosql in the craytisn namespace fails to start because its container runs out of resources. Update the nosol Deployment so that the Pod: 1) Request 160M of memory for its Container 2) Limits the memory to half the maximum memory constraint set for the crayfah name space.

Context Task: A Dockerfile has been prepared at -/human-stork/build/Dockerfile 1) Using the prepared Dockerfile, build a container image with the name macque and lag 3.0. You may install and use the tool of your choice. 2) Using the tool of your choice export the built container image in OC-format and store it at - /human stork/macque 3.0 tar

Context Task: A pod within the Deployment named buffale-deployment and in namespace gorilla is logging errors. 1) Look at the logs identify errors messages. Find errors, including User “system:serviceaccount:gorilla:default” cannot list resource “deployment” […] in the namespace “gorilla” 2) Update the Deployment buffalo-deployment to resolve the errors in the logs of the Pod. The buffalo-deployment ‘S manifest can be found at -/prompt/escargot/buffalo-deployment.yaml

Context Task You are required to create a pod that requests a certain amount of CPU and memory, so it gets scheduled to-a node that has those resources available. • Create a pod named nginx-resources in the pod-resources namespace that requests a minimum of 200m CPU and 1Gi memory for its container • The pod should use the nginx image • The pod-resources namespace has already been created

Context You are asked to prepare a Canary deployment for testing a new application release. Task: A Service named krill-Service in the goshark namespace points to 5 pod created by the Deployment named current-krill-deployment 1) Create an identical Deployment named canary-kill-deployment, in the same namespace. 2) Modify the Deployment so that: -A maximum number of 10 pods run in the goshawk namespace. -40% of the krill-service ‘s traffic goes to the canary-krill-deployment pod(s)

Context Task: Update the Pod ckad00018-newpod in the ckad00018 namespace to use a NetworkPolicy allowing the Pod to send and receive traffic only to and from the pods web and db

Context Task: Create a Deployment named expose in the existing ckad00014 namespace running 6 replicas of a Pod. Specify a single container using the ifccncf/nginx: 1.13.7 image Add an environment variable named NGINX_PORT with the value 8001 to the container then expose port 8001

Context A pod is running on the cluster but it is not responding. Task The desired behavior is to have Kubemetes restart the pod when an endpoint returns an HTTP 500 onthe /healthz endpoint. The service, probe-pod, should never send traffic to the pod while it is failing. Please complete the following: • The application has an endpoint, /started, that will indicate if it can accept traffic by returning an HTTP 200. If the endpoint returns an HTTP 500, the application has not yet finished initialization. • The application has another endpoint /healthz that will indicate if the application is still working as expected by returning an HTTP 200. If the endpoint returns an HTTP 500 the application is no longer responsive. • Configure the probe-pod pod provided to use these endpoints • The probes should use port 8080

Question 18 - CKAD discussion

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Context

Given a container that writes a log file in format A and a container that converts log files from format A to format B, create a deployment that runs both containers such that the log files from the first container are converted by the second container, emitting logs in format B.

Task:

• Create a deployment named deployment-xyz in the default namespace, that:

• Includes a primary lfccncf/busybox:1 container, named logger-dev

• includes a sidecar Ifccncf/fluentd:v0.12 container, named adapter-zen

• Mounts a shared volume /tmp/log on both containers, which does not persist when the pod is deleted

• Instructs the logger-dev container to run the command

which should output logs to /tmp/log/input.log in plain text format, with example values:

• The adapter-zen sidecar container should read /tmp/log/input.log and output the data to

/tmp/log/output.* in Fluentd JSON format. Note that no knowledge of Fluentd is required to complete this task: all you will need to achieve this is to create the ConfigMap from the spec file provided at /opt/KDMC00102/fluentd-configma p.yaml , and mount that ConfigMap to /fluentd/etc in the adapter-zen sidecar container

A.

See the solution below.

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asked 18/09/2024

M.G.Georgantzis QUALCO

30 questions

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Your answer: A

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