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policy-gatekeeper-sample.yaml
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apiVersion: policy.open-cluster-management.io/v1
kind: Policy
metadata:
name: policy-gatekeeper
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:
disabled: false
policy-templates:
- objectDefinition:
apiVersion: policy.open-cluster-management.io/v1
kind: ConfigurationPolicy
metadata:
name: policy-gatekeeper-k8srequiredlabels
spec:
remediationAction: enforce # will be overridden by remediationAction in parent policy
severity: low
object-templates:
- complianceType: musthave
objectDefinition:
apiVersion: templates.gatekeeper.sh/v1beta1
kind: ConstraintTemplate
metadata:
name: k8srequiredlabels
spec:
crd:
spec:
names:
kind: K8sRequiredLabels
validation:
# Schema for the `parameters` field
openAPIV3Schema:
properties:
labels:
type: array
items: string
targets:
- target: admission.k8s.gatekeeper.sh
rego: |
package k8srequiredlabels
violation[{"msg": msg, "details": {"missing_labels": missing}}] {
provided := {label | input.review.object.metadata.labels[label]}
required := {label | label := input.parameters.labels[_]}
missing := required - provided
count(missing) > 0
msg := sprintf("you must provide labels: %v", [missing])
}
- complianceType: musthave
objectDefinition:
apiVersion: constraints.gatekeeper.sh/v1beta1
kind: K8sRequiredLabels
metadata:
name: ns-must-have-gk
spec:
enforcementAction: dryrun
match:
kinds:
- apiGroups: [""]
kinds: ["Namespace"]
namespaces:
- e2etestsuccess
- e2etestfail
parameters:
labels: ["gatekeeper"]
- objectDefinition:
apiVersion: policy.open-cluster-management.io/v1
kind: ConfigurationPolicy
metadata:
name: policy-gatekeeper-audit
spec:
remediationAction: inform # will be overridden by remediationAction in parent policy
severity: low
object-templates:
- complianceType: musthave
objectDefinition:
apiVersion: constraints.gatekeeper.sh/v1beta1
kind: K8sRequiredLabels
metadata:
name: ns-must-have-gk
status:
totalViolations: 0
- objectDefinition:
apiVersion: policy.open-cluster-management.io/v1
kind: ConfigurationPolicy
metadata:
name: policy-gatekeeper-admission
spec:
remediationAction: inform # will be overridden by remediationAction in parent policy
severity: low
object-templates:
- complianceType: mustnothave
objectDefinition:
apiVersion: v1
kind: Event
metadata:
namespace: openshift-gatekeeper-system # set it to the actual namespace where gatekeeper is running if different
annotations:
constraint_action: deny
constraint_kind: K8sRequiredLabels
constraint_name: ns-must-have-gk
event_type: violation
---
apiVersion: policy.open-cluster-management.io/v1
kind: PlacementBinding
metadata:
name: binding-policy-gatekeeper
placementRef:
name: placement-policy-gatekeeper
kind: PlacementRule
apiGroup: apps.open-cluster-management.io
subjects:
- name: policy-gatekeeper
kind: Policy
apiGroup: policy.open-cluster-management.io
---
apiVersion: apps.open-cluster-management.io/v1
kind: PlacementRule
metadata:
name: placement-policy-gatekeeper
spec:
clusterSelector:
matchExpressions:
- {key: environment, operator: In, values: ["dev"]}