SDK Overview

When using the platform SDK for the first time, start studying this document first.

Get Started Scenarios

If you are familiar with the APS integration principles in general and want to start practicing in the APS environment, follow these scenarios:

• Get Started: this directs you through the step-by-step process of creating your first APS application. The scenario includes a simplified design, development, deployment, provisioning, and update of the application.

• Using APS REST API: this helps you get started using the APS REST API to manage the platform services and resources of the integrated APS applications.

Introduction to APS Services

Distribution of cloud services to businesses is simpler through Hosting Providers, Telecommunication Companies and Value Added Resellers (Service Providers). With this channel, an Application becomes available to millions of existing customers across the globe. You can focus on improving your technology, while Service Providers take care of your business growth.

CloudBlue is a service automation platform that provides its internal Application Packaging Standard (APS) controller as a way for Independent Software Vendors (ISV) to distribute cloud services through service providers.

Note

In the platform, APS is a unified method to integrate applications and third-party management systems regardless of their complexity.

APS allows various cloud service vendors to integrate their applications with the platform through an integration APS package created for each application. The applications can collaborate with different cloud services through the standardized RESTful API within the APS ecosystem.

APS packages, certified as APS-compliant, are usually stored in the APS catalog, which makes them available to any service provider.

We address APS to the following specialists:

• Application developers working for ISV wish to sell their cloud services. For this, ISVs need to develop the respective APS applications (APS packages) as integration part of applications in a standard way.

• Operations and support teams working for service providers need to implement and support APS applications on their hosting automation platforms.

• Third-party developers working for system integrators who want to build their business on APS are going to integrate existing applications with the hosting platform and provide APS packages as ready-to-use cloud solutions. System integrators sometimes need to integrate third party management or provisioning systems with the platform.

APS Ecosystem

In CloudBlue, integration with applications is implemented by means via the APS ecosystem.

The platform contains a special module called APS controller that provides applications with a RESTful based bus for exposing application endpoints to be used by other applications and management systems.

Note

The APS controller functions as a message broker, that is, all APS REST messages go through it.

All participants on the APS bus are split into two groups:

• APS services: these services expose their endpoints to provide application resources to the platform accounts. The group includes not only cloud applications integrated through APS connectors but also some services of the platform.

• Service management systems (third parties): these systems interact with APS services to monitor and manage the resources of the platform and the integrated applications.

The interaction between the integrated components goes through the APS controller. The latter stores the presentation of application resources as APS resources in its database.

The platform services are available for other integrated systems and applications as integration points, for example:

• Account management

• User management

• DNS management

The platform User Interface (UI) is provided through the Provider Sontrol Panel (PCP) and UX1 user panel. Any integrated application can extend these panels by adding their navigation menu with custom UI views.

Integrating Applications

An application is integrated into the APS ecosystem through a special integration component, known as APS application. This consists of:

• APS connector: a backend gate between the APS controller and the application services that implements the application provisioning logic.

• Custom UI: a set of frontend UI views for users to manage the application resources.

• Metadata and schemas: declaration and definition of the application resources, services, and UI components.

To integrate an Application with the platform, the Application integrator should develop an APS package that enables providers to deploy the respective APS application on their platforms.

The APS application life-cycle includes the following steps:

1. An integrator develops an APS package that ships all components of the APS application including:

   • The meta declaration of APS resource types, services, and custom UI components.

   • Provisioning logic that allows the APS controller to interact with the application on the backend. This logic exposes the application services used to manage the application resources, that is, create, update, and remove the resources. You can develop the provisioning logic using any programming language. For PHP code, we recommend using the APS PHP framework because it substantially simplifies the integration with APS.

   • Presentation logic (also known as User Interface or UI) containing JavaScript views based on the APS JavaScript SDK that will allow providers, customers, and users to manage the application resources in a comfortable way.

2. A service provider uses the APS package to deploy the APS application on the platform. Usually, all APS application components are shipped inside the APS package. The whole package must be imported to the platform and its provisioning logic is deployed as a separate APS connector. If the provisioning logic is written in PHP, then the APS connector is typically deployed on a host with installed APS PHP framework (runtime). On completion of this stage:

   • The platform will be aware of the resources the Application can provide. The operations team will be able to manage Application resources through the custom UI of the integrated Application.

   • The platform will be able to interact with the Application by using REST API. The APS connector installed from the APS package or from another source will process REST API calls on its endpoint and interact with the Application through the Application original API.

   • The platform will be able to sell Application services through its store.

3. The service provider sells and upsells Application resources separately or in combination with other resources.

4. Customers consume the Application services. The customers subscribed to the Application resources will use the user panel UX1 with the plugged application custom UI to provision and manage the application resources. Usually, a customer assigns application resources to service users who will be able to consume the application service directly through the corresponding service API.

In the Application life-cycle inside the APS ecosystem, an integrator needs to complete the first step, that is, to develop an APS package for the Application they want to integrate with the platform. Using this package, service providers will be able to deploy the Application and sell the Application services to many customers.

Getting Familiar with Platform

Cloud Service Automation

CloudBlue is the leading hosting and cloud services delivery platform used by thousands of service providers worldwide, from the largest telecom operators in the world to top hosters and providers of vertical solutions.

The platform combines Operations Support System (OSS) and Business Support System (BSS). In the simplest case, you may use a test platform containing only OSS installed on a single host called management node.

The platform uses APS technology for application service delivery. If you have developed APS packages, you will need to go through the rest of the application life-cycle stages to complete the integration with the platform:

• Application deployment: to make the application ready for providing services on the platform.

• Application provisioning: to create customer subscriptions and provision application resources for customers.

The platform provides all necessary services for the above as described in the following sections.

Platform for Testing and Education

For testing APS applications and for training, we recommend that you use a separate test platform. In the simplest case, it consists of the OSS part on the management node without the BSS. You will need the BSS, when testing the integration with the platform commercial integration points.

Account Management

You can get started by using two major account types: provider and customer.

• There is only one account of the provider type; this is the owner of the installed platform. On the newly installed platform, you have a user whose login name is admin and the password specified by you during the installation. Log in to the platform using the admin credentials. For example, if the domain name you assigned to the management node is a.isv1.apsdemo.org, enter http://a.isv1.apsdemo.org:8080 in the address field of your browser and then log in as admin.

  Note

  HTTP on port 8080 is only available from the private network where the management node is installed. If you ordered an APS sandbox, you can access that network through a VPN channel. The access from the Internet to a production system is available through HTTPS only.

  You will enter to the OSS PCP.

  

  If BSS is also installed, you can switch to BSS nd then switch back to OSS.

• The provider can create any number of customers. Every customer normally has an administrator (that is, a staff member), who has the necessary permissions for managing all customer resources. The administrator can log in to the user panel UX1 using the same URL as the provider but entering their own email address as the login name. If necessary, the administrator can create any number of service users (end users) and assign resources to them. Any of those users can get access to their own user panel UX1 using their email address as the login name.

  

Resource Model

This section concerns application services and resources provided by them. We do not consider the application UI here.

APS Application API

An APS package contains a declaration of the APS application API by means of APS types. For each APS application service, the package declares an APS type (one-to-one relation) with the following typical definitions in JSON format:

• Resource schema containing properties and structures used by the service to create and manage resources based on this type. Also, the type defines relationships with resources of other APS types.

• APS operations that the service can perform, including generic CRUD (create/provision, read/get, update/configure, and delete) and custom operations on resources.

Installation of APS Applications

You can consider a cloud application as integrated into the APS ecosystem only after the provider establishes a secure connection between the platform and the original service API. Also, the platform must incorporate a custom application UI to manage the application services.

Installation of an APS application requires the following steps:

1. Import the APS package to the platform: the APS types are copied to the APS database.

2. Create an APS connector: installation of the backend (provisioning) logic on a host called endpoint host on the diagram.

3. Install the APS application instance on the APS connector: a trusted connection is established between the APS controller and the application through the APS connector. The APS controller creates the respective APS resource using the APS type App as the resource schema.

An APS connector must have a connection with the cloud application. It will convert the REST requests from the APS controller to the original API calls of the cloud application.

Generally, an APS package declares the following APS types:

• The type with the application root service definition: this is a mandatory type contained in any APS application and used to create an APS application instance on an APS connector.

• APS types used to provide a shared set of parameters for resources of other APS types: parameterized services.

• APS types used by subscribers to create their own individual resources: some parameters of a new resource are copied from a shared APS resource selected by the subscriber.

Pay attention to the built-in APS specific resource classes described in the next section.

Resource Types

To provide any service, the platform must have a resource type describing the service specifics by means of activation parameters. For APS applications, there are two resource classes used to create two groups of resource types:

• The Application Service Reference resource class creates resource types for providing shared APS resources called service profiles and also known as parameterized services or offers. The service profiles belong to the provider and allow subscribers to choose a proper service level when creating resources from the Application Service class. For example, the provider can create a number of offers (“silver”, “gold”, and “platinum” configurations) with different service levels (parameterized service). Typically, the provider must go through two steps:

  1. Create the needed number of the service profiles (also known as offers).

  2. For each service profile, create a resource type from the Application Service Reference resource class.

• The Application Service resource class creates resource types bound to APS types. Subscribers will use those resource types to create their own individual resources. As mentioned earlier, such a resource can be bound to a service profile to set selected parameters from that profile.

Service Template

The provider can subscribe customers to services through a service template that must contain all resource types the provider is going to sell.

For each resource type in a service template, the provider must set a limit. If a resource is unlimited its limit property in the service template is set to -1.

Subscription

In OSS, after a customer is subscribed to a service template, the system creates a subscription for the customer.

In the simplest case, a list of resources along with the limits of a subscription are copied from the corresponding service template.

Provisioning Resources

A subscriber can use a subscription to create and then consume the provisioned application resources.

Normally, one of the resources in a subscription is auto-provisioned in the previous step when the subscription is created. During resource provisioning, the APS controller creates a new APS resource and requires the APS connector to provision a respective resource on the application side. When creating a resource, for example a mailbox, the customer can select an offer to assign its parameters to the new resource.

Further Activities

How-to Procedures

When integrating into the APS ecosystem, you can pursue one or both of the following goals:

• Integrate a management system to monitor, provision, and configure resources on the platform. To do this, follow the Using Platform Services how-to procedures.

• Integrate a cloud application. In this case, the best way to start is to identify the integration points most suitable for you and follow the Integrating Cloud Services how-to procedures.

Concepts

If the how-to procedures do not meet all your integration requirements and you need to know more about the APS ecosystem and platform specifics, dive deeper into the Concepts. There you will find:

• APS Resource Model: the fundamentals of the resource model, APS types, and REST operations.

• Platform Data Models: the fundamentals of service automation on the platform. It explains the OSS and BSS parts of the platform. The former interacts with the integrated application services, and the latter converts the application services to fully automated commercial products.

• Integration Ecosystem: an explanation of the APS ecosystem, application deployment schemes, APS resource model, security and performance concepts of the APS protocols.

• Frontend: the concepts of UI integration environment provided by the platform, as well as the store- and model-based resource management in JavaScript code.

• Application Deployment: explanation of the package structure and application deployment in the platform.

• Product Initialization: preparation of the application services for sale and simplification of that process by means of the product deployment configuration inside an APS package.

• Customization for Sales Channels: building the sales chain of resellers and making some service properties in delegated service plans customizable for the resellers.

• Mail Notifications: explanations of how an application can add and use its own templates for sending email notifications.

• Internationalization and Localization: translated an application’s messages into various languages and customizing them to various locales.

• Development Life Cycle: typical project phases, roles, and details of design, development, testing, and troubleshooting.

• Security: explanation of the embedded security model, possible threats, and attack prevention rules.

• Performance: performance analysis and recommendations on the frontend and backend connections.

API and Reference

There are a number of reference guides with a formal description of APS API and runtime environments to help you reach your goals in the most effective and efficient way. Use them when you need to identify the exact syntax of an API call, attributes of a type property, operations of a standard type, and so on. Keep the following reference documents handy:

• APS Types: the syntax and content of APS types you can create, as well as the library of the existing APS types you can implement in your code.

• REST Interface: RESTful API calls, protocols, and headers.

• User Interface: the structure of a navigation tree and a view source, as well as the auto-generated documentation on APS JS SDK modules, including widgets, models, stores, and methods.

• PHP Framework: APS PHP framework and library for developing and running the APS connectors (provisioning logic) of APS applications.

Tools and Downloads

We recommend that you download, install, and use the APS tools when developing APS applications. The following documents help you arrange your APS development environment, validate and pack your APS project in compliance with the standard:

• Command Line Tools: tools used to validate, localize, and build APS packages in the command line interface.

• APS Fiddle: a server-based online tool for validating, testing and debugging JavaScript code.

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