6. Managing Kubernetes Clusters

Self-service users can deploy ready-to-use Kubernetes clusters with persistent storage for managing containerized applications.

A Kubernetes cluster includes the following components:

Kubernetes version

Underlying OS

Container runtime

Network plugin

v1.21.3, v1.22.2

Fedora 36 CoreOS

Docker 20.10.12

Flannel with VXLAN

v1.23.5, v1.24.3

containerd 1.6.6


  • Kubernetes versions 1.15.x–1.20.x are no longer supported. Kubernetes clusters created with these versions are marked with the Deprecated tag.

  • Kubernetes cluster certificates are issued for five years. To renew the certificates, use the openstack coe ca rotate command, as described in the OpenStack documentation.