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 |
|---|---|---|---|
| v1.23.5 | Fedora 39 CoreOS | Docker 20.10.23 |
Flannel VXLAN (for public VM networks) Flannel host-gw (for private VM networks) |
| v1.24.3, v1.25.7, v1.26.11, v1.27.8, v1.28.4 | containerd 1.6.19 |
Limitations
- Kubernetes versions 1.15.x–1.22.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 rotatecommand, as described in the OpenStack documentation.