security: restrict BareMetalHost creation to OpenStack namespaces#67
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Add ValidatingAdmissionPolicy to enforce namespace-scoped access controls for BareMetalHost resources while maintaining watchAllNamespaces: true in the Bare Metal Operator configuration. Changes: - Add ValidatingAdmissionPolicy restricting BareMetalHost CREATE operations to 'openstack' and 'openstack-operators' namespaces only - Add ValidatingAdmissionPolicyBinding to apply policy cluster-wide - Grant ArgoCD RBAC permissions for admissionregistration.k8s.io resources using explicit verbs (no wildcards) following least-privilege pattern - Configure ArgoCD sync-wave -35 to deploy policy before namespace creation - Create baremetalhost-validation component integrated with provisioning-config This prevents unauthorized bare metal host enrollment from arbitrary namespaces while preserving operational flexibility required by RHOSO. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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I could get a green in our internal pipeline. The used patch was stacking both #66 and this one - everything could deploy accordingly, even baremetal hosts. |
pinikomarov
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Jul 7, 2026
pinikomarov
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lgtm, this rightfully addresses FIND-012
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Add ValidatingAdmissionPolicy to enforce namespace-scoped access controls for BareMetalHost resources while maintaining watchAllNamespaces: true in the Bare Metal Operator configuration.
Changes:
This prevents unauthorized bare metal host enrollment from arbitrary namespaces while preserving operational flexibility required by RHOSO.