We want to create middle tier using Spring Microservices which works as communication bridge between Backbase and Finxact. Backbase hosted by another vendor so do not have full control of it. We only need to focus on our Integration layer.
What are the configuration steps we need to follow for?
Making communication between Backbase and our middle tier
Authenticating request coming from Backbase for serving proper response
do you have access to Backbase Community? The how-to implementation on how to build an integration service can be found here: https://community.backbase.com/documentation/cxs/latest/integration_services_extend
Related
Currently in developer training, I am working on a personal project on spring. I started java 6 months ago, so there is a certain notion that I do not yet master. My trainer does not know spring at all, so he cannot help me.
I am also French and there is very little reliable documentation on spring (it is evolving quickly).
For example, I followed a French tutorial on microservices, and I used the ribbon and zuul proxy while they are currently in maintenance at spring. I started all over (new project) to recode in reactive webflux
I have several concerning spring starter security or spring cloud security
Spring cloud config (in connection with gitlab)
eureka server
admin server
gateway
2 business microservices
2 sub-module (model and repository)
I want all my microservices and the internal microservices (eureka, admin server, configserver) to be secure now. But I do not know how.
I want the microservice that consults config-server to identify themselves, and I also want the microservice gateway to identify itself to make requests to other microservices. Finally I want all my microservices to be protected.
Should we put spring-starter-security in microservice? Should we create a new microservice with spring-cloug-security?
Should we create a new spring-cloud-security microservice and add spring-start-security everywhere?
https://cloud.spring.io/spring-cloud-security/2.2.x/reference/html/ Obviously I find this link not very explanatory
Thank you
In a microservice architecture that I have worked, we have always used the OAUTH2 specification for securing service.
OAuth2 is a token-based security framework that allows a user to authenticate themselves with a third-party authentication server. If the user successfully authenticates, they will be presented with a token that must be sent with every request. The token can then be validated back to the OAuth2 Server. The OAuth2 Server is the intermediary between the application and the services being consumed. The OAuth2 Server allows the user to authenticate themselves without having to pass their user credentials down to every service the application is going to call on behalf of the user.
Detail information for OAuth2 you can find in the following LINK .
I have implemented simple microservice architecture for demonstrating how services are connected with each other.
Here is the link LINK
Below is the image representing the architecture:
We are developing our application which probably is going to consist of about 20 Microservices. We are considering to use Pivotal Cloud Foundry to manage our Microservices and make it easier to have a platform for deployment and health check - amoung others.
About 12 Microservice will render HTML and now we want to know how we can compose all these services to one UI and present it to the client. Does Cloud Foundry a plugin or somehow solves the UI issues for Microservices? Does PCF generates Composite UI?
Does Cloud Foundry a plugin or somehow solves the UI issues for Microservices? Does PCF generates Composite UI?
No, the platform does not do this for you. It only handles routing requests to your apps.
About 12 Microservice will render HTML and now we want to know how we can compose all these services to one UI and present it to the client.
You might look into using a proxy app in front of your microservices. The proxy would just be responsible for presenting a unified front for your clients and combining all the backend services together.
Netflix Zuul/Spring Cloud Zuul or Spring Cloud Gateway might help with this, if you're using Java. I've also see people use Nginx as a reverse proxy to do similar things.
At the end of the day, you're going to need to figure out what works for your particular microservices & clients side apps though. I don't think anyone can give you a definitive answer to your question, at least not without a lot more information.
I'm pretty much new to spring cloud gateway. I have configured routing with two different apps with 'path'. Now, I need some help/docs on
1. How to route to different instance of an app from spring cloud gateway?
2. How to enable sticky session?
My apps are not using spring boot/eureka. I do see that I can use lb://service-name if i'm using any discovery client (unfortunately that is not my case).
Thanks in advance.
IMHO:
How to route to different instance of an app from spring cloud gateway?
Routing to different instances is the basic job of what spring cloud gateway is doing. Spring cloud gateway implements the pattern named client side routing along with the ease of service discovery. So if you are not using any discovery server or your apps are not registered with any discovery server, you loose the dynamic discovery and routing feature, BUT still you can specify your server list (refer to Netflix Ribbon). Until then you can think about your routing strategy.
How to enable sticky session?
I suppose that's one requirement of your routing strategy - implement sticky session because you are not using shared session store. According to my limited knowledge of spring cloud gateway, sticky seems not being supported out of box. But it could be customized with a Filter, see shipped LoadBalancerClientFilter for reference.
Good luck!
I am new and just started to explore Spring Cloud. Would like to know how to practice with examples in local (laptop). It appears to need a cloud environment. And most of them are available only for few days. So any pointers to try out features like
Distributed/versioned configuration, Service registration and discovery ,Routing Service-to-service calls, Load balancing Circuit and Breakers Global locks
You can check out the Spring guides where we guide you, step by step, to achieve what you have described. You can check out the link here for the Ribbon guide -
https://spring.io/guides/gs/client-side-load-balancing/ and the link to all of the guides https://spring.io/guides/
You can also check this blog, service discovery, routing and load balancing.
Spring Cloud, Eureka and Zuul
For Distributed/versioned configuration, check this one
Quick Intro to Spring Cloud Configuration
Also one example, that brings all of that together Spring Cloud Bootstrapping
I am trying to build a simple application with microservices architecture.
Below are the details about 3 microservices I have created.
1] Customer.
database: mongodb
server : embeded tomcat server.
port : 8081
2] vendor.
database: mongodb
server : embeded tomcat server.
port : 8082
3] product.
database: mongodb
server : embeded tomcat server.
port : 8083
All the 3 micros runs on an embeded tomcat server.
Now I want to create a common gateway for all these micros [API gateway].
which help me to route my request based on the request I get for example:-
for example if I get a request of http://hostname:port_of_gateway/customer.
on reading this I need to route the request tom my customer micro and fetch its response and send it back to client.
Which of the spring tool I can use to achieve this?
Because your requirements are quite simple you can implement such a gateway by yourself. Here's an example.
But if you really want to use some Spring solution you can try to use Spring Cloud Netflix which is a part of Spring Cloud umbrella project. It includes router and filter features which in turn based on Netflix Zuul gateway service.
Note that this is not a complete standalone application but a library. Therefore you still should create another microservice that would act as API gateway in your application. To make it a gateway you should just add #EnableZuulProxy annotation to the same class that has #SrpingBootApplication annotation. You can find a very good example here.
Please also note that you should somehow inform the gateway about your microservices' addresses for redirection. It can be done in two general ways:
By statically defining the addresses in gateway microservice's configuration;
By applying service discovery pattern in conjunction with e.g. Netflix Eureka service registry.
The 1st approach is easy and straightforward but is not very well for large number of microservices and/or when microservices' locations can change dynamically (e.g. due to auto-scaling).
The 2nd approach requires additional component - service registry - and needs modification of other microservices (to let them register themselves in the registry). This is quite more complicated approach but is the only possible in case of complex architecture. Simple yet expressive example can be found in the same article.
UPDATE (January'19)
As of December 2018 the Spring Cloud team announced that almost all Netflix components in Spring Cloud (except Eureka) entered maintenance mode. It means that for the next year they won't receive any feature updates (only bugs and security fixes).
There are replacements for all the affected components, including Netflix Zuul aforementioned above. So please consider using Spring Cloud Gateway instead of it in new projects.