Sync with JHipster 7.1.0

[juliensadaoui]

Overview of the issue

I open this ticket to sync the registry with jhipster 7.1.0 and remove the administrative server Below, please find a list of major changes.

• Update JHipster Dependencies version to 7.1.0
• Update Spring Boot version to 2.4.7
• Update Node version to 14.17.1
• Update Typscript version to 4.2
• Upgrade from Angular 10 to Angular 12
• Remove the administrative server, please see details below
• Remove UAA support
• Add new unit tests for registry module (client side)

Motivation for or Use Case

The JHipster Registry is composed of a Eureka Server, that provides as a discovery server for application. It is also an administration server, with dashboards to monitor and manage applications. The Registry is an application type gateway because it manages applications using Netflix Zuul.

JHipster v7 uses Spring Cloud Gateway instead of Netflix Zuul as gateway component. Spring Cloud Gateway is based on the reactive stack and we must migrate the registry on the Webflux module. However, Eureka Server requires a Servlet container. Both Eureka server and Spring Cloud Gateway can't work together. Spring Cloud no longer supports Netflix Zuul.

I suggest removing the administrative server in the Registry. This functionality is proposed by the JHipster Control Center. The JHipster Registry will keep two main purposes:

• It is a Eureka server, that provides as a discovery server for applications.

• It is a Spring Cloud Config server, that provide runtime configuration to all applications.

• [X] Checking this box is mandatory (this is just to show you read everything)

[juliensadaoui]

I started to work on the upgrade to JHipster v7. https://github.com/juliensadaoui/jhipster-registry/tree/jhipster-7

[juliensadaoui]

Merged in the main branch. See #503

[juliensadaoui]

Bounty claimed at https://opencollective.com/generator-jhipster/expenses/45936