The Bulkhead pattern is a type of application design that is tolerant of failure.

 In a bulkhead architecture, elements of an application are isolated into pools so that if one fails, the others will continue to function.

 It's named after the sectioned partitions (bulkheads) of a ship's hull.

 If the hull of a ship is compromised, only the damaged section fills with water, which prevents the ship from sinking.

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apiVersion: v1

kind: Pod

metadata:

  name: drone-management

spec:

  containers:

  - name: drone-management-container

    image: drone-service

    resources:

      requests:

        memory: "64Mi"

        cpu: "250m"

      limits:

        memory: "128Mi"

        cpu: "1"

https://learn.microsoft.com/en-us/azure/architecture/patterns/bulkhead

Bulkhead pattern is used to isolate failures in a distributed

system.

▪ Based on the concept of a "bulkhead" in a ship, structural

partition that helps to prevent the entire ship from flooding if

one compartment is damaged.

▪ In microservices, isolate individual service instances or

groups of service instances from each other, to prevent failures

in one part of the system from affecting the entire system.

▪ One location does not affect other services by isolating the

services. The main purpose is isolated error place and secure

the rest of services.

▪ Naval architecture; ships or submarines are made not as a

whole, but by shielding from certain areas, if there is happens a

flood or fire, the relevant compartment is closed and isolated.

▪ Microservices able to respond to user requests by isolating the

relevant service so the erro

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@Service

public class RatingServiceClient {

​

    private final RestTemplate restTemplate = new RestTemplate();

​

    @Value("${rating.service.endpoint}")

    private String ratingService;

​

    @Bulkhead(name = "ratingService", fallbackMethod = "getDefault")

    public ProductRatingDto getProductRatingDto(int productId){

        return this.restTemplate.getForEntity(this.ratingService + productId, ProductRatingDto.class)

                .getBody();

    }

​

    public ProductRatingDto getDefault(int productId, Throwable throwable){

        return ProductRatingDto.of(0, Collections.emptyList());

    }

​

}

https://learn.microsoft.com/en-us/azure/architecture/patterns/bulkhead