CKAD Exam Dumps | You're working on a Kubernetes application that involves retrieving data from a database. You have a

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Question 32/86

You're working on a Kubernetes application that involves retrieving data from a database. You have a Deployment With multiple pods, each accessing the database directly. To improve the application's performance and reliability, you want to implement an adapter pattern that introduces a service layer to handle database interactions. This layer should be responsible for connection pooling, caching, and error handling, making the application more resilient to database outages.

Correct Answer:

See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a Service Account:
- Create a service account for the application. This will be used by the service layer to access the database.

- Apply the service account to the cluster: 'kubectl apply -f db-setvice-account.yamr 2. Create a Role and Role8inding: - Create a role that grants tne necessary permissions to access the database.

- Create a role binding that associates the role with the service account

- Apply the role and role binding to the cluster: - 'kubectl apply -f db-access-role.yaml' - 'kubectl apply -f db-access-binding.yaml 3. Create the Service Layer Deployment: - Deploy the service layer component. This can be a containerized application that handles database interactions.

- Apply the deployment: 'kubectl apply -f db.-service-yaml 4. Create a Secret for Database Credentials: - Create a secret to store sensitive database credentials.

- Apply the secret 'kubectl apply -f db-credentials.yaml' 5. Create a Service for the Service Layer: - Create a service to expose the service layer to the application pods.

- Apply the service: 'kuoectl apply -f db-seMce.yaml' 6. Llpdate the Application Deployment: - Update the Deployment for your main application to use the service layer.

T Test and Verify' - Verify the changes: - Check the logs for both the service layer and the application. - Test your application's functionality. Note: - Ensure to replace placeholders like ''. ''. ''. ''. ''. ''. and with your actual values. - This is a basic example, and you may need to adjust the configuration based on your specific service layer and database implementation. ,

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