While the Compliance Operator comes with ready-to-use profiles, they must be modified in order to fit the organizations’ needs and requirements. The process of modifying a profile is called tailoring.

The Compliance Operator provides an object to easily tailor profiles called a TailoredProfile. This assumes that you are extending a pre-existing profile, and allows you to enable and disable rules and values which come from the ProfileBundle.

You will only be able to use rules and variables that are available as part of the ProfileBundle that the profile you want to extend belongs to.

Using tailored profiles

While the TailoredProfile CR enables the most common tailoring operations, the XCCDF standard allows even more flexibility in tailoring OpenSCAP profiles. In addition, if your organization has been using OpenScap previously, you may have an existing XCCDF tailoring file and can reuse it.

The ComplianceSuite object contains an optional TailoringConfigMap attribute that you can point to a custom tailoring file. The value of the TailoringConfigMap attribute is a name of a config map, which must contain a key called tailoring.xml and the value of this key is the tailoring contents.

Procedure
  1. Browse the available rules for the Red Hat Enterprise Linux CoreOS (RHCOS) ProfileBundle:

    $ oc get rules.compliance -l compliance.openshift.io/profile-bundle=rhcos4
  2. Browse the available variables in the same ProfileBundle:

    $ oc get variables.compliance -l compliance.openshift.io/profile-bundle=rhcos4
  3. Choose which rules you want to add to the TailoredProfile. This TailoredProfile example disables two rules and changes one value. Use the rationale value to describe why these changes were made:

    Example output
    apiVersion: compliance.openshift.io/v1alpha1
    kind: TailoredProfile
    metadata:
      name: nist-moderate-modified
    spec:
      extends: rhcos4-moderate
      title: My modified NIST moderate profile
      disableRules:
      - name: rhcos4-file-permissions-node-config
        rationale: This breaks X application.
      - name: rhcos4-account-disable-post-pw-expiration
        rationale: No need to check this as it comes from the IdP
      setValues:
      - name: rhcos4-var-selinux-state
        rationale: Organizational requirements
        value: permissive
  4. Add the profile to the ScanSettingsBinding object:

    $ cat nist-moderate-modified.yaml
    Example output
    apiVersion: compliance.openshift.io/v1alpha1
    kind: ScanSettingBinding
    metadata:
      name: nist-moderate-modified
    profiles:
      - apiGroup: compliance.openshift.io/v1alpha1
        kind: Profile
        name: ocp4-moderate
      - apiGroup: compliance.openshift.io/v1alpha1
        kind: TailoredProfile
        name: nist-moderate-modified
    settingsRef:
      apiGroup: compliance.openshift.io/v1alpha1
      kind: ScanSetting
      name: default
  5. Create the TailoredProfile:

    $ oc create -n <namespace> -f <file-name>.yaml
    Example output
    scansettingbinding.compliance.openshift.io/nist-moderate-modified created