How do you manage authentication and authorization in microservices?

How do you manage authentication and authorization in microservices?

Fine-grained object permissions are possible, as microservices can decide what user the will see or not. Global authentication will be easier to manage the lighter the load becomes. Since authorization is controlled by the respective microservice there’s no network latency and it will be faster.

How would you implement authorization in microservices?

Implementing authorization can be done either in the API gateway or in the microservices. To be able to do extensive application-specific authorization checks, authorization should be handled in the specific microservices. This can be done by passing along the JWT with the request.

How do you secure service-to-service communication in microservices?

There are a couple of ways of securing inter-service communication in a microservice architecture. Adopting the authentication proxy pattern, or pass the jwt as the services invoke one another; no matter what you pick, each service needs to have the layer of security addressed.

How do secure microservices communicate with each other?

7 Securing service-to-service communication with JWT

1. The role of JSON Web Token (JWT) in securing service-to-service communication among microservices.
2. Using JWT to carry user context between microservices.
3. Using JWT for cross-domain authentication.
4. Using JWT for message level encryption and signature.

How do you authenticate between microservices?

Authentication between microservices using Kubernetes identities

1. A popular approach is to request and pass identity tokens to every call within services.
2. Users and Pods can use those identities as a mechanism to authenticate to the API and issue requests.
3. It does not work.
4. Excellent!

How do I manage authentication in microservices?

Global Authentication & Authorization Service In this strategy, a dedicated microservice will handle authentication and authorization concerns. Each business service must authenticate the request before processing it by downstreaming it to the authentication service.

How would you communicate one microservice to another microservice?

You need to understand how REST-Services work. After that just write 2 Microservices (2 Rest-Services: producer-service and consumer-service) with Spring-boot, let them run under different server-ports, call the consumer-service from the other, and that’s it: you have your Microservices.

Where do I put authentication in microservices?

The idea here is to have a layer in the middle between the client and the actual microservices. This Gateway can build and prepare the DTOs based on the client type (e.g.: a mobile might see less data than a desktop), do logging, caching, and handle authentication as well.

How to implement authentication and authorization in microservices?

One of the key challenges is how to implement authentication and authorization in microservices so that we can manage security and access control. In this post, we will try to explore a few approaches that are available and see how we should implement them. There are three approaches that we can follow:

What does Auth-Z mean in microservice architecture?

Auth-Z refers to what the user is authorized to do. The diagram below is a conceptual diagram of a Single-Page Application (SPA) that is driven by a Microservice architecture. This architecture utilizes an “edge” service, that provides “security” and “routing” in front of the microservice infrastructure downstream.

How does a microservice authentication service work in edge?

The Auth service simply “authenticates” against the supplied credentials (ie. username/password), and returns an access token to the SPA. You’ll notice this only goes through the edge and has not yet engaged the downstream microservice (s) (or API gateway service).

How is user context shared in a microservices architecture?

In a microservices architecture, nothing is shared between them, so sharing user context is harder and must be explicitly handled from one microservice to another. According to the above security challenges, we conclude that a microservice’s security needs to be tackled differently from the monolith’s.