1.3. Security policies


OpenShift Virtualization provides built-in security features and authorization policies to protect virtual machine workloads and ensure secure cluster operations across your environment.

Key points

  • OpenShift Virtualization adheres to the restricted Kubernetes pod security standards profile, which aims to enforce the current best practices for pod security.
  • Virtual machine (VM) workloads run as unprivileged pods.
  • Security context constraints (SCCs) are defined for the kubevirt-controller service account. For more information about SSCs, see "Additional resources".
  • TLS certificates for OpenShift Virtualization components are renewed and rotated automatically.

1.3.1. About workload security

By default, virtual machine (VM) workloads do not run with root privileges in OpenShift Virtualization, and there are no supported OpenShift Virtualization features that require root privileges.

For each VM, a virt-launcher pod runs an instance of libvirt in session mode to manage the VM process. In session mode, the libvirt daemon runs as a non-root user account and only permits connections from clients that are running under the same user identifier (UID). Therefore, VMs run as unprivileged pods, adhering to the security principle of least privilege.

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