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CKP Product Datasheet

Coredge Kubernetes Platform | Coredge.io | April 2026

Platform Overview​

CKP (Coredge Kubernetes Platform) is a custom Kubernetes distribution built on top of the upstream Kubernetes repository by Coredge.io. CKP binaries are functionally identical to upstream Kubernetes, but are versioned, packaged, and digitally signed by Coredge.io for enterprise traceability and supply chain integrity. All supported versions are CNCF Certified.

PropertyDetails
Platform TypeCustom Kubernetes Distribution + Cluster Lifecycle Management
VendorCoredge.io
CertificationCNCF Certified Kubernetes (all supported versions)
Package SigningPGP-signed by Coredge.io with mandatory integrity verification
ArchitectureTwo-layer: Distribution Layer (distro) + Management Layer (CAPI/Compass)
Supported K8s Versionsv1.33.7, v1.34.3, v1.35.1
Version Suffix-ckp (e.g., v1.31.2-ckp)

Distribution Layer​

CKP Packages​

PackageDescription
kubeadmCluster bootstrapping and lifecycle management
kubeletPrimary node agent for pod execution
kubectlCLI for Kubernetes API
kubernetes-cniContainer Network Interface plugins
cri-toolsCRI diagnostic tools (crictl)
containerdContainer runtime with CNI support

BYOH Bundle Availability​

Operating SystemAvailability
Ubuntu 22.04, Ubuntu 24.04All K8s versions (v1.33.7+)
RHEL 9All K8s versions (v1.33.7+)

All packages are custom-built Debian binaries for AMD64. BYOH bundles are OCI-compliant image artifacts pulled via imgpkg. Container images for all core components (kube-apiserver, kube-controller-manager, kube-scheduler, kube-proxy, etcd, CoreDNS, pause) are hosted on the Coredge Docker Hub registry.

Compatibility Matrix​

K8s VersionetcdCoreDNSContainerdCRIPauseCalico (CNI)CNCF
v1.33.73.5.15-0v1.11.31.7.0+v13.10v3.30.5Yes
v1.34.33.5.15-0v1.11.31.7.0+v13.10v3.30.5Yes
v1.35.13.5.15-0v1.11.31.7.0+v13.10v3.30.5Yes

Management Layer (CAPI + Compass)​

ComponentVersion / Details
Cluster API (Core)v1.7.7
Kubeadm (Bootstrap + CP)v1.7.7
BYOH (Infrastructure)v0.6.1
Managed Control PlaneKonnectivity, CoreDNS, KubeProxy, LoadBalancer
Cert-Managerv1.15.3 (10-year TLS certificates)
Compass PlatformUnified UI + REST/gRPC APIs; multi-tenant (domain + project scoped)

Infrastructure Provider​

CapabilityDetails
ProviderOrbiter Baremetal (BMS)
ProvisioningCloud-init templates
NetworkingPhysical server allocation
ArchitectureAMD64
OS SupportUbuntu 22.04, Ubuntu 24.04, RHEL 9

Networking, Storage, Backup & Autoscaling​

Networking & Storage​

PropertyDetails
Pod NetworkConfigurable CIDR
Service NetworkConfigurable CIDR
CNI (CAPI)Cilium (eBPF)
CNI (Compass)Calico v3.30.5
StorageCeph (ckp-block)
Standalone CSIOpenEBS hostpath

Backup​

PropertyDetails
Backup ToolVelero (S3-compatible)
Backup IsolationProject-level
Storage Classckp-block (Delete reclaim)
Volume ExpansionEnabled
DeploymentHelm chart

Security & Compliance​

SecurityDetails
Package SigningPGP by Coredge.io; mandatory verification
Image RegistryCoredge Docker Hub registry
Host AuthmTLS + Pre-Shared Key (PSK)
TLS Certificates10-year validity; Cert-Manager v1.15.3
Build SecurityHardened base images; non-root
CNCFAll K8s versions CNCF Certified

System Prerequisites​

PrerequisiteDetails
Supported OSUbuntu 22.04, Ubuntu 24.04, RHEL 9
Container RuntimeContainerd (v1.6.14+)
OCI Runtimerunc (v1.1.3–v1.1.10)
CRI Toolscrictl (v1.27.0)
CNI Pluginsv1.1.2–v1.3.0
Helmv3
Kerneloverlay, br_netfilter, swap off

Cluster Lifecycle (14-Step)​

PhaseSteps
ProvisioningRequest → Resolve provider → Provision hosts → Register (mTLS)
BootstrapApprove → Assign group → CAPI resources → Reconcilers
Cluster ReadyControl Plane up → Workers join → Ready state
AddonsStorage + Cilium + Velero + 10yr TLS

Contact​

For more information or questions about Coredge's CKP:

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