Resource Orchestration Service:Manage the parameters and outputs of an infrastructure template

Prerequisites

An infrastructure template is created. For more information, see Create an infrastructure template.

Manage the parameters of an infrastructure template

1. Go to the ROS Infrastructure Composer module in the ROS console.

2. In the left-side navigation pane, click Infrastructure Templates.

3. On the Infrastructure Templates page, find the desired infrastructure template and click the card.

4. In the upper-right corner above the canvas, click Template. Then, click the Parameters tab. You can perform the following operations on the tab:

   • View parameters: View all parameters that are defined in the infrastructure template.

   • Add parameters: Click Add Parameter to display the Parameter Configurations tab on which you can configure parameters. You can also click the JSON or YAML tab to configure parameters. The following table describes the fields on the Parameter Configurations tab.

   • Delete parameters: Move the pointer over the parameter you want to delete and click .

   Field	Description
   Parameter Name	Specify a name for the parameter. The parameter name can contain letters, digits, hyphens (-), and underscores (_). The parameter name cannot contain spaces or be the same as other parameter names in the infrastructure template.
   Parameter Type	Specify the data type of the parameter. Valid values: String: corresponds to the String data type in the template syntax. Number: corresponds to the Number data type in the template syntax. Boolean: corresponds to the Boolean data type in the template syntax. JSON: corresponds to the Json data type in the template syntax. List: corresponds to the CommaDelimitedList data type in the template syntax. For more information, see Type in Overview.
   Business Components	Select a business component, which helps you select parameter configurations based on optional values in the console. This field corresponds to AssociationProperty and AssociationPropertyMetadata in the template syntax. For more information, see AssociationProperty and AssociationPropertyMetadata.
   Default Value	Specify a default value for the parameter. If you do not specify a value for a template parameter when you create a stack, ROS checks whether a default value is defined for the parameter in the template. If a default value is defined in the template, ROS uses the default value. Otherwise, an error is reported. This field corresponds to Default in the template syntax. For more information, see Default in Overview.
   Parameter Label	Specify an alias for the parameter. This field corresponds to Label in the template syntax. For more information, see Label in Overview.
   Parameter Description	Specify a description for the parameter. This field corresponds to Description in the template syntax. For more information, see Description in Overview.
   Optional Parameters	Specify valid values for the parameter. This field corresponds to AllowedValues in the template syntax. For more information, see AllowedValues in Overview.
   Maximum Length	Specify an integer value, which represents the largest number of characters allowed for a String-type parameter value. This field corresponds to MaxLength in the template syntax. For more information, see MaxLength in Overview.
   Minimum Length	Specify an integer value, which represents the smallest number of characters allowed for a String-type parameter value. This field corresponds to MinLength in the template syntax. For more information, see MinLength in Overview.
   Whether to Use as Password Component	Specify whether to set the parameter value as sensitive data and display the parameter value masked as asterisks (*) in the Outputs tab in the console. This field corresponds to NoEcho in the template syntax. For more information, see NoEcho in Overview.
   Whether to Enable Duplicate Verification	Specify whether to require secondary confirmation of the parameter value in the console. By default, the field is disabled. This field corresponds to Confirm in the template syntax. For more information, see Confirm in Overview. Note This field appears only when Whether to Use as Password Component is enabled.
   Whether to Support Line Breaks	Specify whether to display the parameter with a multi-line field. This field corresponds to TextArea in the template syntax. For more information, see TextArea in Overview.
   Regular Expression for Text Verification	Enter a regular expression, which is used to check whether a String-type parameter is matched. If you do not specify a String-type parameter, an error is reported. This field corresponds to AllowedPattern in the template syntax. If you use one or more of the following special characters, add two backslashes (\\) as an escape character before each special character: *.?+-$^[ ]( ){ }|\/ Note You do not need to add escape characters before hyphens (-) that are placed at the start and end of a regular expression. Example: [a-z-]. For more information, see AllowedPattern in Overview.
   Prompt After Text Verification Failure	Enter a tip that appears if the string fails to be matched by using the specified regular expression. This field corresponds to ConstraintDescription in the template syntax. For more information, see ConstraintDescription in Overview.

Manage the outputs of an infrastructure template

1. Go to the ROS Infrastructure Composer module in the ROS console.

2. In the left-side navigation pane, click Infrastructure Templates.

3. On the Infrastructure Templates page, find the desired infrastructure template and click the card.

4. In the upper-right corner above the canvas, click Template. Then, click the Outputs tab. You can perform the following operations on the tab:

   • View outputs: View all outputs that are defined in the infrastructure template.

   • Add outputs: Click Add Output to display the Output Settings tab on which you can configure outputs. You can also click the JSON or YAML tab to configure outputs. The following table describes the fields on the Output Settings tab.

   Field	Description
   Output Name	Specify a name for the output. The output name can contain letters, digits, hyphens (-), and underscores (_). The output name cannot contain spaces or be the same as other output names in the infrastructure template.
   Output Values	Select the resource and the resource property that you want to obtain after you create the stack. From the first drop-down list, select a resource from all the resources defined in the infrastructure template. From the second drop-down list, select a property from all the properties of the resource.
   Condition	Specify a condition, which is used to control whether to create a resource and return its information. The output takes effect only when the condition is evaluated to true or no condition is specified. This field corresponds to Condition in the template syntax. For more information, see Condition in Outputs.
   Label	Specify an alias for the output. This field corresponds to Label in the template syntax. For more information, see Label in Outputs.
   Description	Specify a description for the output. This field corresponds to Description in the template syntax. For more information, see Description in Outputs.

References

• View an infrastructure template

• Use an infrastructure template to deploy a stack