opa-deployment.yaml

apiVersion: v1
kind: ServiceAccount
metadata:
  name: opa
  labels:
    app: opa
---

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: strimzi-view
  labels:
    app: strimzi
    # Add these permissions to the "view" default role.
    rbac.authorization.k8s.io/aggregate-to-view: "true"
rules:
- apiGroups:
  - "kafka.strimzi.io"
  resources:
  - kafkas
  - kafkaconnects
  - kafkaconnects2is
  - kafkamirrormakers
  - kafkausers
  - kafkatopics
  - kafkabridges
  - kafkaconnectors
  - kafkamirrormaker2s
  - kafkarebalances
  verbs:
  - get
  - list
  - watch
---

# Grant OPA/kube-mgmt read-only access to resources. This lets kube-mgmt
# replicate resources into OPA so they can be used in policies.
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: opa-viewer
  labels:
    app: opa
roleRef:
  kind: ClusterRole
  name: view
  apiGroup: rbac.authorization.k8s.io
subjects:
  - kind: ServiceAccount
    name: opa
    namespace: myproject
---

# Define role for OPA/kube-mgmt to update configmaps with policy status.
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: configmap-modifier
  labels:
    app: opa
rules:
  - apiGroups: [""]
    resources: ["configmaps"]
    verbs: ["update", "patch"]
---

# Grant OPA/kube-mgmt role defined above.
kind: RoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: opa-configmap-modifier
  labels:
    app: opa
roleRef:
  kind: Role
  name: configmap-modifier
  apiGroup: rbac.authorization.k8s.io
subjects:
  - kind: ServiceAccount
    name: opa
    namespace: myproject
---

apiVersion: apps/v1
kind: Deployment
metadata:
  name: opa
  labels:
    app: opa
spec:
  replicas: 1
  selector:
    matchLabels:
      app: opa
  template:
    metadata:
      labels:
        app: opa
      name: opa
    spec:
      serviceAccountName: opa
      containers:
        - name: opa
          image: openpolicyagent/opa:latest
          ports:
            - name: http
              containerPort: 8181
          args:
            - "run"
            - "--ignore=.*"  # exclude hidden dirs created by Kubernetes
            - "--log-level=debug"
            - "--server"
            - "--set=decision_logs.console=true"
            - "/policies"
          volumeMounts:
            - readOnly: true
              mountPath: /policies
              name: opa-policies
        - name: kube-mgmt
          image: openpolicyagent/kube-mgmt:0.11
          args:
            - "--replicate=kafka.strimzi.io/v1beta1/kafkatopics"
            - "--replicate=kafka.strimzi.io/v1beta1/kafkausers"
      volumes:
        - name: opa-policies
          configMap:
            name: opa-policies
---

kind: Service
apiVersion: v1
metadata:
  name: opa
  labels:
    app: opa
spec:
  selector:
    app: opa
  ports:
    - name: http
      protocol: TCP
      port: 8181
      targetPort: 8181