website/restrict-owners.yaml at main · projectcapsule/website · GitHub

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apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: restrict-secrets-to-owners
spec:
  validationFailureAction: Enforce
  background: false
  rules:
    - name: restrict-secrets-to-owners
      match:
        resources:
          kinds:
            - Pod
          namespaceSelector:
            matchExpressions:
              - key: capsule.clastix.io/tenant
                operator: Exists

      context:
        # 1) Tenant owners for this namespace
        - name: owners
          apiCall:
            urlPath: "/apis/capsule.clastix.io/v1beta2/tenants"
            jmesPath: >
              items[?contains(status.namespaces, '{{ request.namespace }}')].status.owners | [0]

        # 2) User groups as a separate variable
        - name: userGroups
          variable:
            jmesPath: "request.userInfo.groups"
            default: []

        # 3) User owners: kind == "User" && name == username
        - name: userOwnerMatchesCount
          variable:
            jmesPath: "length((owners || `[]`)[?kind == 'User' && name == '{{ request.userInfo.username }}'])"
            default: 0

        - name: groupOwnerMatchesCount
          variable:
            jmesPath: "length((owners || `[]`)[?kind == 'Group' && contains(userGroups, name)])"
            default: 0

      validate:
        message: >-
          User {{ request.userInfo.username }} is not an owner of the Tenant for namespace
          {{ request.namespace }} (neither as User nor via any Group membership).
          Debug: userOwnerMatches={{ userOwnerMatchesCount }}, groupOwnerMatches={{ groupOwnerMatchesCount }},
          owners={{ owners }}, groups={{ userGroups }}.
        deny:
          conditions:
            all:
              - key: "{{ userOwnerMatchesCount }}"
                operator: Equals
                value: 0
              - key: "{{ groupOwnerMatchesCount }}"
                operator: Equals
                value: 0