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Defining the Resource Data Model

In this article:

Introduction to data modeling

Every resource in the resource repository inherits a collection of properties and behaviors from the data model on which it is based.

For example, the resource data model describes which attributes and drivers to associate with each type of resource. Initial, default and runtime attribute values are determined by the parent family and model.

Even if you choose to set up the resource data model and populate the resource repository automatically, it's important to understand the process in case you choose to customize the default settings and values. If you assign new attributes or modify the attribute values of a resource family or model, the updated properties will be applied to both new and existing resources.

Defining the resource data model affects the whole system, including how resources are searched for, how abstract resources are created, how they are saved in the database and more.

The data model and attributes should be standardized across the company therefore should get a proper design and review procedure prior to deployment.

There are two ways to define the resource data model: importing or manually creating them. In practice, defining the data model usually requires a mix of both methods.

Importing data modeling populates Resource Manager with pre-defined resource families, models and structures. You can import updated definitions by launching the configuration wizard, or by importing xml configuration files via the Resource Families tree. For additional information, see Importing/Exporting Resource Family Updates.

You can use these configuration files to add new resource families, associated models, attributes and their complete structure, or to update existing family and model definitions for the current resource structure.

Importing data modeling is a good starting point for setting up your resource data model, as it sets up common resource data models and configurations.

However, it was not designed to cover every possible device brand and version. If you need additional resource data models, you can add them manually. You may want to customize the default properties for imported resource families and models. The available options are extensive.

When you add a new resource family manually, in addition to defining its properties, you'll need to add associated models and structure manually. You can add new resource models to an existing resource family, or to one that you create.

Steps to defining your data model

  1. Creating a resource family
  2. Creating a resource model
  3. Associating a driver to a resource model
  4. Associating an attribute to a family or model
  5. Define the resource structure

Creating a resource family

  1. Click the Admin ribbon.
  2. In the Configuration section, click Resource Families.

    The Resource Families explorer is displayed.

  3. Right-click the root and select New > Resource Family.


  4. Note: The Name field is mandatory. The Description field is optional. Resource family names can include any combination of alpha numeric characters, including spaces, hyphens, periods, pipes, and square brackets.

  5. Click the Image button and select Set Image to browse for an icon for the new resource family.

    The icon will be displayed in the resource document, Execution instance diagram, and Lab Monitor, for every family resource. The maximum allowed image size is 240 KB. It is recommended to use 32x32 pixel icons.

    Tip: It is recommended to add the relevant images to your data model so that users creating complex blueprints in CloudShell Portal will easily identify the resources.

  6. Select the required properties for resources of this family:

    Connectable When selected, resources from this family can be connected to other resources. For example, a traffic generator port is usually connectable, while the parent chassis and blades are not
    Locked By Default When selected, resources from this family should not have the 'Shared' value set for them when added to a blueprint. When reserving the blueprint or specific resource, shared resources can still be reserved by others. For example, a server may be a shared resource, therefore not locked by default, while a port is typically locked by default.
    Acts As Group Enforces treating resources from this family as a group. This option is typically used to create a pair of neighboring ports. If you reserve one, the system will automatically reserve the other as well.
    Admin Only

    Hides this family's resources from all non-admin users. Admins can change this setting for a resource in CloudShell Portal - see Editing Resources from the Inventory Dashboard.

    Note: You can only define a sub-resource as admin only, if the root family was defined as admin only.

    Searchable Displays this family in advanced resource search results.
    Service Template

    If you are creating a family for services or apps, select the type of service that will be included in this category. Select the Service Template check box. From the Type drop-down list that is displayed, select the type of service:

    • Regular: This is a regular service, not an app
    • Deployment: Relevant for apps. This service deploys the app's virtual machine on the selected cloud provider.
    • Installation: Relevant for apps. This service installs the application on the virtual machine.
    • Orchestration: Relevant for apps. This is a built-in service that manages the execution of the app's services. Contact support before working with this type of service.
    Type

    The Type check box enables you to classify resources within this family into a category to help end-users search for this resource in the CloudShell Portal.

    The categories are:

    • Resource
    • Application
    Allow Remote Connection

    Enables users to remotely connect to resources of this family from the sandbox and the Inventory dashboard. The option is enabled by default.

    Note: When importing packages into CloudShell or upgrading from CloudShell 8.0 or earlier, the option is enabled by default for root resource families only. To enable for sub-resource families, select the check box in the family's Parameters page.

  7. Click OK.

    The new resource family is added to the Resource Families explorer.

Creating a resource model

  1. Click the Admin ribbon.
  2. In the Configuration section, click Resource Families.
  3. In the Resource Families explorer, select the relevant family.
  4. Right-click the family name and select Add > New > Resource Model.
  5. Enter a Name and optionally enter a Description for your model.
  6. Tip: It is recommended to start with the device vendor and complete with the device model.

  7. Click the Image button and browse for an icon to represent the model. The maximum allowed image size is 240 KB. It is recommended to use 32x32 pixel icons.
  8. Tip: It is recommended to add the relevant images to your data model so that users creating complex blueprints in CloudShell Portal, will easily identify the resources.

  9. Click OK.

    The new model is added under the relevant family.

Associating a driver to a resource model

This procedure explains how to associate a driver that exists in CloudShell to a resource model. Drivers provide commands that can be run on resources.

Drivers are added to CloudShell in the CloudShell Portal's Manage dashboard, as explained in Adding drivers.

To associate a driver to a resource model:

  1. Click the Admin ribbon.
  2. In the Configuration section, click Resource Families.
  3. In the Resource Families explorer, select the relevant resource model.

    The resource model's Parameters page tab is displayed.

  4. In the Drivers sub-tab, click Add/Remove From Bank.

    The Select Drivers dialog box is displayed.

  5. From the Available Drivers pane, select the driver you want to associate and click .
  6. Click OK.
  7. Optionally, select the Supports Concurrent Commands check box to enable multiple commands to run on the model's resources at the same time.

Note: To use this driver, you will need to associate it to the resource(s) you create in the Resource Explorer.

You can also associate a driver to a resource model in the Manage dashboard. For additional information, see Editing drivers.

Associating an attribute to a family or model

For information on how to create attributes, see Attributes.

To associate an attribute with a resource family or model:

  1. In the Resource Families explorer, select the required family/model.
  2. The Parameters pane is displayed.

  3. In the Parameters pane, in the Attributes tab, click Add/Remove From Bank.
  4. In the Resource Family Attributes window, in the Available Attributes pane, select the required attributes.
    1. To add an attribute, in the Available Attributes pane, click .
    2. To remove attributes, in the Selected Attributes pane, click .
  5. Click OK.
  6. Note: If you don't see the attribute in the resource Configuration/Settings document, make sure that the attribute has the Configuration/Settings rules selected.

Configuring associated attribute rules

After associating an attribute with a family or model, you can modify the rules associated with that instance of the attribute. The settings that you specify for an attribute instance will affect all child resources of the selected family or model, but will not affect the attribute's source settings.

To edit attribute rules for an attribute instance:

  1. Click the Admin tab's Resource Families icon to open the Resource Families explorer.
  2. Select a resource family or model from the Resource Families tree. Any attributes associated with the selected family or model will be displayed in the Attributes pane on the right.
  3. Select the attribute that you wish to configure, and click the Edit Rules button.

To edit rules for an attribute that is associated with a resource family:

  1. Select a resource family and click the toolbar's Edit Rules button.

The Attributes Rules window contains three tabs: Attributes Details, Value Constraints, and Inheritance Rules.

Setting new default value for an attribute instance

To modify the attribute's default value:

  1. Click the Attribute Details tab.
  2. The attribute name, type, and description are global settings and cannot be changed.

Restricting values for an associated attribute

To define a set of valid attribute values for this specific family or model:

  1. Click the Value Constraints tab. By default, no constraints are set
  2. To add constraints, check the Restricted Values option.
    1. For String or Numeric type attributes, enter the list of valid values for the attribute instance, separated by a comma
    2. For Lookup type attributes, check each value that you wish to associate with the attribute

Note: Value constraints cannot be set for Password or Boolean type attributes.

Configuring attribute inheritance settings

To specify inheritance settings for this instance of the attribute:

  1. Click the Inheritance Rules tab.
  2. Select Default rule: Not inherited to disable inheritance.
    In this case, the attribute will apply to the selected family or model, but not to any resources of this type.
  3. Select Not overridable to enable inheritance but to disable modifications to the attribute settings.
    This attribute will be added to any child resources for the selected family or model with the current values and rules
  4. Select Inherited, overridable to enable inheritance and property modifications.

    Child resources of the selected family or model can modify attribute values and settings.

    Note: Attributes inherited by a child resource cannot be removed from a family or model. You can however modify the default and restricted values of inherited attributes in a child resource. If you choose to modify the default and restricted values of an inherited attribute, the inheritance connection between the child resource and the parent family or model will be lost. Future changes to the family will no longer automatically apply to the modified child. Inherited attribute values that have been modified are marked with an asterisk.

Duplicating an existing data model

  1. Click the Admin ribbon.
  2. In the Configuration section, click Resource Families.

To duplicate an existing family along with the models included in it:

  1. In the Resource Families tree, select the family you wish to duplicate.
  2. Right-click the family name and select Copy.
  3. Right-click the root of the Resource Families tree and select Paste.

A new family and all its models is added to the Resource Families tree.

To duplicate a model:

  1. In the Resource Families tree, select the model that you wish to duplicate.
  2. Right-click the model name and select Copy.
  3. Select the family of the model you just copied.
  4. Right-click the family's name and select Paste.

Note: you can only duplicate a model within the same family.

A duplicate model, under a new name is added to the same family in the Resource Families tree.

Define the resource structure

If the device you are modeling has sub-resources, such as ports or jacks, you can associate your resource model with the models of those sub-resources. This will enable you to add sub-resources, which use the associated models, to the actual resource you will create. For more information, see Defining the Resource Structure.

Relate topics:

Importing/Exporting Resource Family Updates