Master Microservices with Spring Boot and Spring Cloud - Step 22 – Creating Environment Variables to Enable Microservice

The video tutorial covers service discovery and load balancing in Kubernetes, highlighting issues with using default environment variables. It recommends creating custom environment variables for better service management. The tutorial also explains the process of building and deploying Docker images, updating tags, and deploying services with updated environment variables.

What is the main issue with using default environment variables for service discovery in Kubernetes?

• They are difficult to configure.

• They are not secure.

• They do not support load balancing.

• They are not available if the service is down.

Why is it recommended to create custom environment variables in Kubernetes?

• To enhance load balancing capabilities.

• To reduce configuration complexity.

• To ensure availability even if a service is down.

• To improve security.

What is the first step after making a code change in the currency conversion service?

• Restart the Kubernetes cluster.

• Update the deployment YAML.

• Push the changes to the repository.

• Create a Docker image.

What is the significance of the 'snapshot' in the image version?

• It indicates a stable release.

• It represents a development version.

• It signifies a deprecated version.

• It denotes a production-ready version.

What should be updated in the deployment YAML to deploy the new version of the service?

• The environment variable name.

• The service name.

• The Kubernetes cluster configuration.

• The image version.

What is the purpose of creating a backup of the working deployment YAML?

• To enhance security.

• To reduce configuration errors.

• To improve deployment speed.

• To ensure a rollback option.

What command is used to apply changes in the deployment YAML?

• kubectl deploy -f

• kubectl configure -f

• kubectl update -f

• kubectl apply -f

What is the role of the 'env' section in the deployment YAML?

• To set the Kubernetes namespace.

• To specify the container image.

• To define the service name.

• To configure environment variables.

How can you verify that the currency conversion service has started successfully?

• By restarting the Kubernetes cluster.

• By checking the deployment YAML.

• By updating the Docker image.

• By viewing the service logs.

Why might the currency conversion service still show version V11 after deployment?

• The Docker image was not pushed.

• The deployment YAML was not updated.

• The currency exchange service was not redeployed.

• The Kubernetes cluster was not restarted.