Spring Cloud Spring Cloud Configuration Management 2

Question 1

How does a Spring Cloud Config Client specify which Config Server to connect to?

Accepted Answer

Via spring.config.import or spring.cloud.config.uri in application properties

Answer

Clients configure the Config Server URL using spring.cloud.config.uri (legacy) or spring.config.import=configserver: (modern approach) in their bootstrap or application properties.

Question 2

What is the purpose of the `bootstrap.yml` file in a Spring Cloud Config Client application?

Accepted Answer

It is loaded before the application context and used to configure the Config Server connection

Answer

bootstrap.yml is processed by a bootstrap context that starts before the main application context, allowing Config Server settings to be available when the app context initializes.

Question 3

Which Spring Cloud Config Server backend stores configuration in a relational database rather than Git?

Accepted Answer

JDBC backend (spring.cloud.config.server.jdbc)

Answer

The JDBC backend allows Config Server to store and retrieve configuration from a relational database using a PROPERTIES table, configured via spring.cloud.config.server.jdbc.

Question 4

How does Spring Cloud Config Server handle encrypted property values stored in Git?

Accepted Answer

It uses a {cipher} prefix and decrypts values using a configured key before serving them

Answer

Properties prefixed with {cipher} are automatically decrypted by Config Server using a symmetric or asymmetric key configured via encrypt.key before the values are returned to clients.

Question 5

What is a 'label' in the context of Spring Cloud Config Server with a Git backend?

Accepted Answer

A Git branch, tag, or commit SHA used to select the configuration version

Answer

In Spring Cloud Config Server, the label corresponds to a Git branch, tag, or commit SHA, allowing clients to pin their configuration to a specific version.

Spring Cloud Practice Test

Spring Cloud Practice Test

Spring Cloud Spring Cloud Configuration Management 2