policy-kernel-devel.yaml

# This policy creates machine configurations that install kernel development
# packages onto the OpenShift nodes.  Note, that this is intended for OpenShift 4.6
# and newer only.  This is needed to allow the Falco/Sysdig kernel modules to be
# applied successfully so suspicious kernel level events can be detected.
#
# This policy is set to enforce by default.
# Warning: Applying this policy causes a rolling restart of all master and worker
# nodes to apply the new machine configurations.
#
# Change the placement rule so this policy only applies to clusters that need this
# machine configuration.

apiVersion: policy.open-cluster-management.io/v1
kind: Policy
metadata:
  name: policy-kernel-devel
  annotations:
    policy.open-cluster-management.io/standards: NIST SP 800-53
    policy.open-cluster-management.io/categories: CM Configuration Management
    policy.open-cluster-management.io/controls: CM-2 Baseline Configuration
spec:
  remediationAction: inform
  disabled: false
  policy-templates:
    - objectDefinition:
        apiVersion: policy.open-cluster-management.io/v1
        kind: ConfigurationPolicy
        metadata:
          name: policy-kernel-devel-configs
        spec:
          remediationAction: enforce # the policy-template spec.remediationAction is overridden by the preceding parameter value for spec.remediationAction.
          severity: low
          object-templates:
            - complianceType: musthave
              objectDefinition:
                apiVersion: machineconfiguration.openshift.io/v1
                kind: MachineConfig
                metadata:
                  labels:
                    machineconfiguration.openshift.io/role: worker
                  name: worker-extensions
                spec:
                  extensions:
                    - kernel-devel
            - complianceType: musthave
              objectDefinition:
                apiVersion: machineconfiguration.openshift.io/v1
                kind: MachineConfig
                metadata:
                  labels:
                    machineconfiguration.openshift.io/role: master
                  name: master-extensions
                spec:
                  extensions:
                    - kernel-devel
---
apiVersion: policy.open-cluster-management.io/v1
kind: PlacementBinding
metadata:
  name: binding-policy-kernel-devel
placementRef:
  name: placement-policy-kernel-devel
  kind: PlacementRule
  apiGroup: apps.open-cluster-management.io
subjects:
- name: policy-kernel-devel
  kind: Policy
  apiGroup: policy.open-cluster-management.io
---
apiVersion: apps.open-cluster-management.io/v1
kind: PlacementRule
metadata:
  name: placement-policy-kernel-devel
spec:
  clusterConditions:
  - status: "True"
    type: ManagedClusterConditionAvailable
  clusterSelector:
    matchExpressions:
      - {key: environment, operator: In, values: ["dev"]}