vRealize Automation Component Registry API
Component Registry Service API Specification
What is the Component Registry Service?
The component registry service is one of the key services in the vRealize Automation distributed architecture. It manages all services (including out-of-the-box services and services from third party solution providers) and serves as the central view for all service lookups. Clients of the component registry service interact with it to obtain service information and related endpoint data.
The component registry service provides:
- A central location for services to publish their service information and endpoints (for both out-of-the-box services and third party services).
- A central location for clients to query services information and endpoints.
- An endpoint configuration capability for services not directly integrated in the application. The external services are treated in the same way as out-of-the-box services.
A service provides a set of related functionalities/features. A service may use functions (i.e., endpoints) provided by other services. For example, the shell-ui-app service uses some features of the catalog service. Most of the services use the SSO service for authentication.
A service endpoint provides a specific function or subfeature of a service. A service generally has many endpoints.
A provider of services via endpoints. For example, the catalog service provides catalog features for the shell-ui-app service to consume.
A service that uses functions provided by other services. For example, a pure service consumer such as the vRA UI (shell-ui-app) only consumes services without providing services of its own. But a mixed service consumer such as the event log service provides its own services as well as consuming other services.
How the Component Registry Service Works
Understanding the Relationships
The component registry stores details on all services and their associated endpoints. Before interacting with the component registry, it's helpful to grasp the relationships that come into play.
- A service type identifies a deployable product or common service that can be connected to the application; for example, "catalog service," "composition service," or "software service."
- A service identifies a deployed instance of that product or common service; for example, the instance of "composition service" installed on machine X. In most cases, there is a single service instance for a given service type.
- A service can have multiple endpoints, but can have only one endpoint instance per endpoint type. Each endpoint points to a URL that provides a specific API to that service.
- The exact API provided by an endpoint is identified by an endpoint type. Endpoint types enable consumers of a service to obtain the endpoint corresponding to the interface they require.
Here's a hypothetical example that hopefully makes things a little clearer:
Suppose there is a monitoring service (MS) to report on and remediate issues with the health of services in the application. This might require each compliant service in the product to register an endpoint that exposes an API for the MS to periodically query the health of that service.
In this scenario, the MS would define an endpoint type "Service Health" associated with a published API standard. Each compliant service would register an endpoint referencing that endpoint type and implementing that standard. To survey the health of components in the application, the MS iterates through the services, looks up the "Service Health" endpoint for each service, and then queries that endpoint to retrieve the health status.
Here is a programming analogy:
- An endpoint type is like an "interface" defining a set of methods that can be invoked.
- An endpoint is an actual "object" that implements that interface.
Important Note: A service endpoint lets a service consumer know where to access the endpoint. However, the endpoint does not provide automatic service binding. The service consumer needs to know how to use the API provided by the service provider endpoint without any assistance from the component registry.
Viewing Services and Their Endpoints
All GET methods are available to any authenticated user. Below are some quick examples of common component-registry HTTP GET commands:
- View all service types:
- View all services:
- View all endpoints associated to a specific service:
- View all endpoints:
- View all endpoint types:
Drill down into the documentation to find more information on how to query the component registry.
Registering New Services to the Component Registry
Most write operations in the component registry are only available to solution users (users registered to the SSO server). To register a new solution user to the SSO server, one must use the vRA SDK or the SSO API/SDK. A non-solution user can use the
/component-registry/registration API to do this. Below are some quick examples of component registry HTTP commands that manage the component registry:
- Add/Register a new service as a solution user:
- Register a new solution user and a new service (performed as a non-solution user):
- Unregister a service:
- Register endpoint:
Drill down into the documentation to find more detailed information on how register services with the component registry.
Other Resources Provided by the Component Registry
The component registry also provides helpful REST resources such as
Related Sample Code
- vRealize Automation - Component RegistryvRealize Automation - Component Registry Component Registry manages all services (including out-of-the-box services and services from third party solution providers) and serves as the central view for ...api_vra_component_registry vRealize Automation POSTMAN CollectionDownload
Updated 1 year
- VMware vRealize Automation PluginJenkins vRealize Automation Plugin The vRealize Automation Jenkins plugin enables Jenkins to provision vRealize Automation 7 Blueprints. Requirements Jenkins 1.58+ Java 8 to compile plugin or Java 7 ...vRealize Automation JavaDownload
Updated 3 years
- vRealize Automation API Samples for PostmanvRealize Automation API Samples for Postman Overview The vRealize Automation REST API provides consumers and administrators access to all services in its service catalog that support the vRealize Auto ...vRealize Automation POSTMAN CollectionDownload
Updated 4 months
Updated 1 year
- chef-client example of a bootstrap install on Ubuntu 16.04A basic example to install the chef-client via the install.sh from Chef Software. This should be noted that this only requires wget and bash, so this can work for CentOS, RHEL, debian, Ubuntu, and the ...vRealize Automation vRA Blueprint
- chef-client example of a bootstrap install on Windows using Powershell 3 and upA basic example to install the chef-client via the install.ps1 from Chef Software. This should be noted that this requires Powershell and should work on any version of Windows with Powershell 3+. You ...vRealize Automation vRA Blueprint
- vRA 7 and above prepare_vra_template.ps1Powershell script designed to deploy the needed agents on your windows template. This mimics the prepare_vra_template.sh file for linux and will deploy java, bootstrap and gugent agents from the vRA a ...vRealize Automation PowerShell
- Kubernetes as a Service BlueprintThis blueprint currently requires RHEL/CENTOS 7 Atomic. I do plan to port this to Photon OS as soon as it is GA. Live demo of this solution here > https://youtu.be/X8QfAQmcVjA Full instructions to in ...vRealize Automation vRA BlueprintDownload
Updated 4 years
- Add Disk and New SCSI AdapaterSimple vRO package that has the workflows needed to deploy a new disk, to the same datastore as the chosen VM while adding the next available SCSI adapter. See this post for the best usagevRealize Orchestrator Plug-in SDK vRO PackageDownload
Updated 6 years
- vRealize Automation - Catalog ServicevRealize Automation - Catalog Service The catalog service REST API is designed to be used by the consumers of the service catalog; for example, an end user who wants to request a catalog item would be ...api_vra_catalog vRealize Automation api_vra_composition POSTMAN CollectionDownload
Updated 1 year