Deploy and manage production-grade Kubernetes clusters directly on your Polystack private cloud. Polystack Kubernetes as a Service (K8SaaS) automates cluster provisioning, node scaling, certificate management, and upgrades — giving teams a fully managed Kubernetes experience on dedicated infrastructure.Documentation Index
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Kubernetes as a Service
User Guide
Create cluster templates, deploy Kubernetes clusters, scale node groups, access
clusters via kubectl, and manage the full cluster lifecycle.
Admin Guide
Configure cluster drivers, manage quotas, administer certificate authorities,
choose container runtimes, and monitor cluster health across projects.
CLI Reference
Create cluster templates, provision clusters, manage node groups, and retrieve
kubeconfig files using the openstack CLI.
Compute Service
Polystack Compute provides the virtual machine instances that form Kubernetes master
and worker nodes.
Key Capabilities
One-Click Cluster Provisioning
Deploy a fully configured Kubernetes cluster from a template in minutes — nodes,
networking, certificates, and API access configured automatically.
Elastic Node Scaling
Scale worker node groups up or down on demand. Autoscaling policies adapt cluster
capacity to workload pressure automatically.
Multi-Node-Group Clusters
Create heterogeneous clusters with multiple node groups — differentiated by flavor,
availability zone, or hardware profile — for GPU, memory-optimized, and general
workloads.
Automated Certificate Management
Cluster certificates are generated, rotated, and managed automatically. No manual
PKI configuration required.
Network Plugin Choice
Choose between Flannel (simple overlay) and Calico (network policy enforcement)
at cluster template creation time. Switch plugins between clusters, not within.
Cluster Upgrades
Perform rolling Kubernetes version upgrades with zero downtime — master nodes
upgraded first, worker nodes drained and replaced sequentially.
How It Works
Supported Kubernetes Versions
Supported Kubernetes versions are determined by the cluster templates deployed on
your platform. Contact your administrator for the available version matrix.
| Channel | Version | Status |
|---|---|---|
| Stable | 1.29.x | GA |
| LTS | 1.28.x | GA |
| Preview | 1.30.x | Preview |
Related Services
Polystack Compute
Virtual machine instances that run Kubernetes master and worker nodes
Polystack Load Balancer
API server and service load balancing for Kubernetes clusters
Polystack Networking
Tenant networks, floating IPs, and security groups for cluster nodes
Polystack Block Storage
Persistent volume claims backed by Polystack block storage
Polystack DNS
DNS records for Kubernetes ingress and service endpoints
Polystack Key Management
Secrets management for cluster certificates and service credentials