policy-egress-firewall-sample.yaml

apiVersion: policy.open-cluster-management.io/v1
kind: Policy
metadata:
  name: egress-example
  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: egress-example
        spec:
          remediationAction: inform
          severity: low
          namespaceSelector:
            exclude:
              - kube-*
            include:
              - default
          object-templates:
            - complianceType: musthave
              objectDefinition:
                apiVersion: network.openshift.io/v1
                kind: EgressNetworkPolicy
                metadata:
                  name: demo-firewall
                spec:
                  egress:
                    - type: Allow
                      to:
                        cidrSelector: 192.168.12.0/24
                    - type: Allow
                      to: 
                        dnsName: db-srv.example.com
                    - type: Allow
                      to: 
                        dnsName: analytics.example.com
                    - type: Deny
                      to: 
                        cidrSelector: 0.0.0.0/0
---
apiVersion: policy.open-cluster-management.io/v1
kind: PlacementBinding
metadata:
  name: binding-egress-example
placementRef:
  name: placement-egress-example
  kind: PlacementRule
  apiGroup: apps.open-cluster-management.io
subjects:
- name: egress-example
  kind: Policy
  apiGroup: policy.open-cluster-management.io
---
apiVersion: apps.open-cluster-management.io/v1
kind: PlacementRule
metadata:
  name: placement-egress-example
spec:
  clusterConditions:
  - status: "True"
    type: ManagedClusterConditionAvailable
  clusterSelector:
    matchExpressions:
      - {key: environment, operator: In, values: ["dev"]}