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| Section | Objectives |
|---|---|
| Topic 1: Services and Networking | - Ingress basics - Services (ClusterIP, NodePort) - Pod networking concepts |
| Topic 2: Application Environment, Configuration and Security | - Security contexts and service accounts - ConfigMaps and Secrets usage |
| Topic 3: Application Observability and Maintenance | - Understand probes and health checks - Monitor and troubleshoot applications |
| Topic 4: State Persistence | - PersistentVolumes and PersistentVolumeClaims - Storage classes and volume mounting |
| Topic 5: Application Deployment | - Understand rolling updates and rollbacks - Use Kubernetes primitives to implement deployments |
| Topic 6: Application Design and Build | - Understand multi-container Pod design patterns - Define, build and modify container images - Understand Jobs and CronJobs |
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NEW QUESTION # 190
Context
You must connect to the correct host . Failure to do so may result in a zero score.
[candidate@base] $ ssh ckad00043
A Deployment needs specific RBAC permissions.
Task
First, find the RBAC permissions needed by the scraper Deployment running in the cute-panda namespace .
it kubectl logs may help you to find the permissions it needs.
Next, create a new ServiceAccount named scraper in the namespace cute-panda.
Answer:
Explanation:
See the Explanation below for complete solution.
Explanation:
ssh ckad00043
You have two deliverables here:
* Figure out what RBAC permissions the scraper Deployment needs (the logs will usually show
"Forbidden" with the missing verb/resource).
* Create a ServiceAccount named scraper in namespace cute-panda (and in practice, you then bind the needed permissions to it and use it in the Deployment so it actually works).
Below is the exact CKAD-style workflow.
1) Find the missing RBAC permissions (use logs + events)
1.1 Identify the pods for the Deployment
kubectl -n cute-panda get deploy scraper
kubectl -n cute-panda get pods -l app=scraper 2>/dev/null || kubectl -n cute-panda get pods Pick one pod name and check logs:
kubectl -n cute-panda logs deploy/scraper --tail=100
If the pod is crashlooping and logs are short:
POD=$(kubectl -n cute-panda get pods -o jsonpath='{.items[0].metadata.name}') kubectl -n cute-panda logs "$POD" --previous --tail=200
1.2 Look specifically for "Forbidden" lines
Most apps print errors like:
* ... is forbidden: User "system:serviceaccount:cute-panda:default" cannot list resource "pods" in API group "" in the namespace "cute-panda"
* or cannot get resource "configmaps"...
* or cannot watch ...
If you don't see it in logs, check events:
kubectl -n cute-panda get events --sort-by=.lastTimestamp | tail -n 30
1.3 Extract verb/resource/apiGroup from the error
From a typical Kubernetes RBAC "forbidden" message, capture:
* verb: get/list/watch/create/update/patch/delete
* resource: pods, configmaps, secrets, deployments, etc.
* apiGroup: "" (core), apps, batch, etc.
* namespace: cute-panda (this is a namespaced permission if it's a Role) You may have multiple "cannot ..." lines # you need to allow all of them.
2) Create the ServiceAccount scraper (required by the task)
kubectl -n cute-panda create serviceaccount scraper
kubectl -n cute-panda get sa scraper
3) Create the RBAC objects to grant the needed permissions
The task says "A Deployment needs specific RBAC permissions" - in CKAD, that usually means: Role + RoleBinding (namespaced) bound to your new ServiceAccount.
3.1 Create a Role (template you fill from the log output)
Create scraper-role.yaml:
cat <<'EOF' > scraper-role.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
name: scraper-role
namespace: cute-panda
rules:
# EXAMPLE ONLY: replace these rules with what your logs show
- apiGroups: [""]
resources: ["pods"]
verbs: ["get","list","watch"]
EOF
Apply it:
kubectl apply -f scraper-role.yaml
3.2 Bind the Role to the ServiceAccount
kubectl -n cute-panda create rolebinding scraper-rb \
--role=scraper-role \
--serviceaccount=cute-panda:scraper
Verify:
kubectl -n cute-panda get role scraper-role
kubectl -n cute-panda get rolebinding scraper-rb -o yaml
4) Update the Deployment to use the new ServiceAccount (so it actually works) Check current SA (likely default):
kubectl -n cute-panda get deploy scraper -o jsonpath='{.spec.template.spec.serviceAccountName}{"\n"}' Patch it to use scraper:
kubectl -n cute-panda patch deploy scraper -p '{"spec":{"template":{"spec":{"serviceAccountName":" scraper"}}}}' Rollout:
kubectl -n cute-panda rollout status deploy scraper
Re-check logs to confirm RBAC errors are gone:
kubectl -n cute-panda logs deploy/scraper --tail=100
NEW QUESTION # 191
Refer to Exhibit.
Context
As a Kubernetes application developer you will often find yourself needing to update a running application.
Task
Please complete the following:
* Update the app deployment in the kdpd00202 namespace with a maxSurge of 5% and a maxUnavailable of 2%
* Perform a rolling update of the web1 deployment, changing the Ifccncf/ngmx image version to 1.13
* Roll back the app deployment to the previous version
Answer:
Explanation:
Solution:
NEW QUESTION # 192
You have a Deployment for a web application that uses a separate Redis cache pod for session management. You want to ensure that each web application pod can access a dedicated Redis instance for session management and avoid contention. Explain how you can use a PersistentVolumeClaim and StatetulSet to achieve this.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
I). Create a PersistentVoIumeClaim:
- Create a PersistentVoIumeCIaim (PVC) to request persistent storage for each Redis instance.
- Specify the storage size, access modes, and other requirements based on your needs.
- Example:
2. Create a StatefulSet: - Define a StatefulSet for the Redis pods. - Associate each Redis pod with a unique PVC, ensuring that each pod gets its own dedicated persistent volume. - Example:
3. Configure the Deployment: - Denne tne web application pod Within a Deployment. - Use a Service (e.g., 'redis-service') to access the Redis instances. - Make sure the web application's code can access the Redis instances using the service name. - Example:
4. Deploy and Test - Deploy tne PersistentVolumeClaim, StatefulSet, and Deployment. - Test the web application to ensure that each pod can access its own dedicated Redis instance and session data is correctly managed Without contention. 5. Important: - StatefulSets ensure that each pod has a unique hostname and persistent storage, making them suitable for managing stateful applications. - This approach helps isolate Redis instances, preventing session data conflicts and ensuring the scalability of your web application. ,
NEW QUESTION # 193
You have a Kubernetes application that requires configuration values to be injected into the application's environment variables. You want to manage these configuration values centrally and allow for easy updates and versioning. You are considering using Kustomize to achieve this.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a base configuration file:
- Define the base configuration values in a file named 'base-yaml'
2. Create a Kustomjzation file: - Create a file named ' kustomization.yaml' to define the Kustomize configuration:
3. Create an overlay for development environment - Create a directory named 'dev' and create a 'kustomization.yamr file within it:
- Create a 'patch.yaml' file within the 'devs directory to override the base configuratiom
4. Apply the configuration: - To apply the base configuration, use: bash kubectl apply -k - To apply the configuration for the development environment, use: bash kubectl apply -k dev 5. Verify the configuration: - You can verify the applied configuration by listing the ConfigMaps: bash kubectl get configmaps -n my-app-namespace - You can View tne specific configuration values using Ski-Ibectl get configmap my-app-config -n my-app-namespace -o yaml ,
NEW QUESTION # 194 
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
Answer:
Explanation:
See the solution below.
Explanation:
Solution:
NEW QUESTION # 195
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