--- title: "Kubernetes Plugins (CNI, CRI, CSI...) & softwares versions and reserved resources" url: https://docs.ovhcloud.com/pl/guides/public-cloud/containers-orchestration/managed-kubernetes/plugins-software-versions-reserved-resources lang: pl lastUpdated: 2026-04-10 --- # Kubernetes Plugins (CNI, CRI, CSI...) & softwares versions and reserved resources We list here some details on the Control Panel, the plugins (CNI, CRI, CSI...) & software versions we use and the resources we reserve on each Node. ## Kubernetes versions Currently, we support the following Kubernetes releases: - `1.31` - `1.32` - `1.33` - `1.34` - `1.35` If you run a Managed Kubernetes Service using an older version we strongly encourage you to use the [version upgrade feature](/pl/guides/public-cloud/containers-orchestration/managed-kubernetes/upgrading-version.md) to receive official support for your cluster. You will find more details about our [End-of-Sale, End-of-Service and End-of-life-Policy in the dedicated section](/pl/guides/public-cloud/containers-orchestration/managed-kubernetes/eos-eol-policies.md). We will closely follow the Kubernetes releases, and new versions will be regularly available. ## OS, kernel and Docker versions The OS, kernel and Docker demon version on your nodes will be regularly updated. Current versions are: - OS: Ubuntu 22.04 LTS - Kernel: 5.15-generic - Docker: 23.0.1 ## CRI (Container Runtime Interface) We use `containerd` as the default CRI - `1.30`: 1.7.18 - `1.31`: 2.1.4 - `1.32`: 2.1.4 - `1.33`: 2.1.4 - `1.34`: 2.1.4 - `1.35`: 2.2.1 ## CNI (Cluster Network Interface) The CNI plugin installed is [canal](https://github.com/projectcalico/canal) which embedded [calico](https://github.com/projectcalico/calico) for policy and [flannel](https://github.com/coreos/flannel/) for networking. The versions installed depends on the Kubernetes version: - `1.30`: calico v3.29.1, flannel v0.24.4 - `1.31`: calico v3.29.1, flannel v0.24.4 - `1.32`: calico v3.29.1, flannel v0.24.4 - `1.33`: calico v3.30.1, flannel v0.24.4 - `1.34`: calico v3.30.1, flannel v0.24.4 - `1.35`: calico v3.31.4, flannel v0.24.4 ## CCM (Cloud-controller-manager) Our cloud-controller-manager (CCM) is based on the OpenStack cloud-controller-manager (OpenstackCCM) available in the [Cloud provider openstack](https://github.com/kubernetes/cloud-provider-openstack) repository. - `1.30`: OVH IOLB CCM based on OpenstackCCM 1.18, OVH Octavia CCM based on OpenstackCCM 1.29 - `1.31`: OVH IOLB CCM based on OpenstackCCM 1.18, OVH Octavia CCM based on OpenstackCCM 1.29 - `1.32`: OVH Octavia CCM based on OpenstackCCM 1.29 - `1.33`: OVH Octavia CCM based on OpenstackCCM 1.33 - `1.34`: OVH Octavia CCM based on OpenstackCCM 1.33 - `1.35`: OVH Octavia CCM based on OpenstackCCM 1.33 ## CSI (Container Storage Interface) The CSI plugin installed is [cinder](https://github.com/kubernetes/cloud-provider-openstack). The versions depend on the Kubernetes cluster version: - `1.30`: csi-plugin v1.29.0, csi-attacher v4.5.0, csi-provisioner v3.6.3, csi-snapshotter v6.3.3 snapshot-controller: v6.3.3, csi-resizer v1.10.0 - `1.31`: csi-plugin v1.29.0, csi-attacher v4.10.0, csi-provisioner v5.3.0, csi-snapshotter v6.3.3 snapshot-controller: v8.3.0, csi-resizer v1.14.0 - `1.32`: csi-plugin v1.29.0, csi-attacher v4.10.0, csi-provisioner v5.3.0, csi-snapshotter v6.3.3 snapshot-controller: v8.3.0, csi-resizer v1.14.0 - `1.33`: csi-plugin v1.29.0, csi-attacher v4.10.0, csi-provisioner v5.3.0, csi-snapshotter v6.3.3 snapshot-controller: v8.3.0, csi-resizer v1.14.0 - `1.34`: csi-plugin v1.29.0, csi-attacher v4.10.0, csi-provisioner v5.3.0, csi-snapshotter v6.3.3 snapshot-controller: v8.3.0, csi-resizer v1.14.0 - `1.35`: csi-plugin v1.33.0, csi-attacher v4.10.0, csi-provisioner v5.3.0, csi-snapshotter v6.3.3 snapshot-controller: v8.3.0, csi-resizer v1.14.0 ## Other components The versions are: - `1.30`: coredns v1.12.1, metrics-server v0.7.2 - `1.31`: coredns v1.12.4, metrics-server v0.8.0 - `1.32`: coredns v1.12.4, metrics-server v0.8.0 - `1.33`: coredns v1.12.4, metrics-server v0.8.0 - `1.34`: coredns v1.12.4, metrics-server v0.8.0 - `1.35`: coredns v1.14.1, metrics-server v0.8.1 ## Enabled policies - [Network policies](https://kubernetes.io/docs/concepts/services-networking/network-policies/) - [Resource quotas](https://kubernetes.io/docs/concepts/policy/resource-quotas/) - [Limit range](https://kubernetes.io/docs/concepts/policy/limit-range/) Authorization modes: - [Node](https://kubernetes.io/docs/reference/access-authn-authz/node/): Authorise API requests made by Kubelets. - [RBAC](https://kubernetes.io/docs/reference/access-authn-authz/rbac/): Role-Based Access Control is a method of regulating access to computer or network resources based on the roles of individual users within an organisation. Feature gates: - `TTLAfterFinished`: Allow a TTL controller to clean up resources after they finish execution. (enabled by default for `v1.23+`, parameter removed in `v1.25`) ### Kubelet - `protect-kernel-defaults`: Protect tuned kernel parameters from overriding kubelet default kernel parameter values. ## Reserved resources Each worker node has a certain amount of CPU, RAM and storage reserved for Kubernetes components.\ These reserved quotas may evolve in the future; the page will be updated accordingly. To guarantee the availability of a customer's node, the amount of reserved resources depends on the instance flavor. - **CPU** reservation is defined through this formula: > 15 % of 1 CPU + 0,5% of all CPU cores - **RAM** reservation is a constant: > 1590 MB - **Storage** reservation is defined through this formula: > log10(total storage in GB) \* 10 + 10% of total storage This table sums up the reserved resources on b2 and b3 flavors: | Flavor | vCore | Reserved CPU (ms) | Total RAM | Reserved RAM (GB) | Total storage (GB) | Reserved storage (GB) | | ------ | ----- | ----------------- | --------- | ----------------- | ------------------ | --------------------- | | b2-7 | 2 | 160 | 7 | 1,59 | 50 | 22 | | b2-15 | 4 | 170 | 15 | 1,59 | 100 | 30 | | b2-30 | 8 | 190 | 30 | 1,59 | 200 | 43 | | b2-60 | 16 | 230 | 60 | 1,59 | 400 | 66 | | b2-120 | 32 | 310 | 120 | 1,59 | 400 | 66 | | b3-8 | 2 | 160 | 8 | 1,59 | 50 | 22 | | b3-16 | 4 | 170 | 16 | 1,59 | 100 | 30 | | b3-32 | 8 | 190 | 32 | 1,59 | 200 | 43 | | b3-64 | 16 | 230 | 64 | 1,59 | 400 | 66 | | b3-128 | 32 | 310 | 128 | 1,59 | 400 | 66 | | b3-256 | 64 | 470 | 256 | 1,59 | 400 | 66 | ## Go further - If you need training or technical assistance to implement our solutions, contact your sales representative or click on [this link](https://www.ovhcloud.com/en-gb/professional-services/) to get a quote and ask our Professional Services experts for assisting you on your specific use case of your project. - Join our [community of users](https://community.ovhcloud.com/).