See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Create a Network Policy:
- Create a Network Policy that allows traffic only from the application pods to the MySQL database server-
- Define the podSelector' to specify the application pods that should be allowed to connect to the database.
- Use 'ingress' rules to define the allowed incoming traffic from the application pods.
- Specify the 'from' field to identify the source pods using labels or namespaces-
- Set the 'to' field to specify the target IP address or range of the MySQL database server

2. Deploy the Network Policy: - Apply the Network Policy to your Kubernetes cluster using 'kubectl apply -f mysql-access.yamr 3. Configure the Application: - Configure your Node.js application to connect to the MySQL database using the IP address or hostname of the database server. - Ensure that the Node.js application has appropriate security credentials to access the database. 4. Test the Application: - Run your application and verify that it can connect to the MySQL database successfully. Note: This example provides a basic implementation. You might need to adjust the configuration based on your specific security requirements and network setup. You can further enhance the network policy by using specific ports, protocols, and other security measures as needed.,