A rule is a piece of logical judgment code that is stored in a rule function of Function Compute. You can create a rule based on a managed rule that is provided by Cloud Config to audit associated resources.

Background information

Before you create a rule, you must familiarize yourself with the definition of rules and how rules work. For more information, see Rule definition and implementation.

Cloud Config allows you to manage the following two types of rules:
  • Managed rules

    A managed rule is a rule function that Cloud Config creates in Function Compute. If you want to create a rule based on a managed rule, you can directly select the managed rule in the Cloud Config console. For more information about the managed rules that Cloud Config provides, see Managed rules.

  • Custom rules

    A custom rule is created based on a rule function that you create in Function Compute. To create a rule based on a rule function, you must create the rule function in Function Compute and enter the Alibaba Cloud Resource Name (ARN) of the rule function in the Cloud Config console. For more information about the code and input parameters of a custom rule function, see Create a custom rule function.

Use an ordinary account

If you use an ordinary account, you can create rules based on managed rules only for your account.

  1. Log on to the Cloud Config console.
  2. In the left-side navigation pane, click Rules.
  3. On the Rules page, click Create Rule.
  4. On the Create Rule page, search for a managed rule by rule name, tag, evaluation logic, or risk level. Then, click Apply Rule.
  5. In the Properties step, configure the Rule Name, Risk Level, and Description parameters. You can also use the default values for the parameters. Then, click Next.
    The default values of the Rule Name, Risk Level, and Trigger Type parameters are used. You can change the values of the Rule Name and Risk Level parameters based on your business requirements.
  6. In the Assess Resource Scope step, keep the default resource type and click Next.
  7. In the Parameters step, click Next.
    If the managed rule has an input parameter, you must set an expected value for the input parameter.
  8. In the Modify step, click Next.

    For managed rules that allow you to modify the remediation settings, you can select the check box next to Modify and set the remediation method, remediation type, and parameters involved. For more information, see Configure automatic remediation or Configure manual remediation.

  9. In the Preview and Save step, check the configurations and click Submit.
  10. Verify that the rule is created.
    • Click View Details. On the page that appears, you can view the rule details on the Rule Details, Result, and Correction Details tabs.
    • Click Return to Rule List. In the Rules list, you can view the status of the created rule in the Status column. In normal cases, the rule is in the Active state.

Use a management account

If you use a management account, you can create rules based on managed rules for your account and member accounts in the relevant resource directory.

  1. Log on to the Cloud Config console.
  2. In the left-side navigation pane, click Rules.
  3. On the Rules page, click the required account group tab.
  4. On the account group tab, click Create Rule.
  5. On the Create Rule page, search for a managed rule by rule name, tag, evaluation logic, or risk level. Then, click Apply Rule.
  6. In the Properties step, configure the Rule Name, Risk Level, and Description parameters. You can also use the default values for the parameters. Then, click Next.
    The default values of the Rule Name, Risk Level, and Trigger Type parameters are used. You can change the values of the Rule Name and Risk Level parameters based on your business requirements.
  7. In the Assess Resource Scope step, keep the default resource type and click Next.
  8. In the Parameters step, click Next.
    If the managed rule has an input parameter, you must set an expected value for the input parameter.
  9. In the Modify step, click Next.

    For managed rules that allow you to modify the remediation settings, you can select the check box next to Modify and set the remediation method, remediation type, and parameters involved. For more information, see Configure automatic remediation or Configure manual remediation.

  10. In the Preview and Save step, check the configurations and click Submit.
  11. Verify that the rule is created.
    • Click View Details. On the page that appears, you can view the rule details on the Rule Details, Result, and Correction Details tabs.
    • Click Return to Rule List. In the Rules list, you can view the status of the created rule in the Status column. In normal cases, the rule is in the Active state.