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| Section | Objectives |
|---|---|
| Application Observability and Maintenance | - Monitor and troubleshoot applications - Understand probes and health checks |
| Services and Networking | - Pod networking concepts - Ingress basics - Services (ClusterIP, NodePort) |
| State Persistence | - Storage classes and volume mounting - PersistentVolumes and PersistentVolumeClaims |
| Application Design and Build | - Understand multi-container Pod design patterns - Understand Jobs and CronJobs - Define, build and modify container images |
| Application Deployment | - Understand rolling updates and rollbacks - Use Kubernetes primitives to implement deployments |
| Application Environment, Configuration and Security | - Security contexts and service accounts - ConfigMaps and Secrets usage |
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NEW QUESTION # 134
Refer to Exhibit.
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
Answer:
Explanation:
Solution:
NEW QUESTION # 135
You are managing a Kubernetes cluster with multiple teams working on different projects. Each team needs its own isolated environment within the cluster to deploy tneir applications and manage their resources witnout interfering With others. Describe how you would use Kubernetes namespaces to achieve this, and provide an example of how you might configure a namespace for a team working on a new e-commerce application.
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create Namespaces for Teams: use 'kubectl create namespace command to create namespaces for each team. For example, 'kubectl create namespace ecom-team'.
2. Configure Resource Quotas: Set resource limits for each namespace using 'kubectl create -f command. This prevents one team from consuming all the resources available on the cluster Heres a sample resource quota file:
3. Apply Role-Based Access Control (RBAC): IJse 'kubectl create -f ' command to define role bindings for each team. This allows you to control the actions that each team can perform within their namespace. Here's a sample role binding file:
4. Create Resources within the Namespace: Deploy your applications and other resources within the dedicated namespace for the e-commerce team. For example, you can deploy a 'Deployment Witn the following configuration:
5. Verify Namespace Configuration: IJse 'kubectl get namespaces' to list all namespaces, and 'kubectl describe namespace to view details of a specific namespace. 6. Manage Namespace Access: You can use tools like 'kubectl' or a graphical user interface (GIJI) to manage the access rights and resources within each namespace. 7. Cleanup: When a team no longer needs a specific namespace, you can delete it using 'kubectl delete namespace '.
NEW QUESTION # 136
You are developing a microservices application and want to deploy it to Kubernetes using Helm. You have two services: 'user-service and 'order-service. The 'order-service depends on the "user-service'. How would you use Helm to manage these deployments, ensuring that the 'order- service' only starts after the 'user-service' is successfully deployed and running?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a Helm Chart for Each Service:
- 'user-service' chart:
- Create a 'values.yamr file for the 'user-service' chart.
- Define the container image, resources, and any other necessary configurations for the 'user-service'.
- 'order-service' chart:
- Create a 'values-yamr file for the 'order-service' chart
- Define the container image, resources, and any other necessary configurations for the 'order-service'
- In tne 'values.yamr, add a dependency on the 'user-service' chart.
2. Configure Helm for Dependency Management: - Use the '-dependency-update' flag to ensure that Helm automatically updates the 'user-service chart before deploying the 'order-service' bash helm dependency update order-service 3. Deploy the Services Using Helm: - Deploy the 'user-service chart: bash helm install user-service Juser-service - Deploy the 'order-service' chart: bash helm install order-service ./order-service - Helm will automatically handle the dependency between the services, ensuring that the 'user-services is deployed before the 'order-service' 4. Verify Deployment and Dependency: - Use ' kubectl get pods -l app=user-service' and 'kubectl get pods -l app=order-service' to verify that the pods are running. - You Should observe that the 'user-service' pods are up and running before the 'order-services pods start. - You can also use 'kubectl describe pod' to see the pod events and confirm that the 'order-service' pod is waiting for the 'user-service' to be ready before starting.,
NEW QUESTION # 137 
Task:
1) First update the Deployment cka00017-deployment in the ckad00017 namespace:
Role userUI
2) Next, Create a NodePort Service named cherry in the ckad00017 nmespace exposing the ckad00017-deployment Deployment on TCP port 8888 See the solution below.
Answer:
Explanation:
Explanation
Solution:
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NEW QUESTION # 138
You are working on a Kubernetes application that requires a scheduled job to run a data processing script every day at midnight. The script takes approximately 30 minutes to complete and requires access to a persistent volume to store its output dat a. How would you create a Job resource that meets these requirements?
Answer:
Explanation:
See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
I). Create a Persistent Volume Claim:
- Define a Persistent Volume Claim (PVC) to request the necessary storage space.
- Specify the access mode and storage class according to your cluster configuration.
2. Define the Job Resource: - Create a Job resource With a 'cronJob' schedule to trigger the execution at midnight every day. - Specify the 'backoffLimit' to control the number of retries in case of failures. - Define the 'spec-template.spec.containers' section for the container running the data processing script. - Mount the PVC to the container using 'volumeMounts'.
3. Create the Job: - Apply the Job YAML file using 'kubectl apply -f data-processing-job.yamr 4. Verify Job Execution: - Use 'kubectl get jobS to monitor the status of the Job. - Check the 'status. completionTime' to verify that the Job completed successfully. - Verity that the output data is stored in the mounted persistent volume. 5. Update the Script - Update the 'your-data-processing-script.sh" with the necessary commands to process the data and store the output in the "ldata' directory. 6. Monitor the Job: - Continuously monitor the Job's status and logs using 'kubectl logs' to ensure it runs correctly. Note: Replace 'your-image-namelatest and 'your-data-processing-scriptsh' with the actual image name and script file respectively,
NEW QUESTION # 139
......
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