This document shows what are compatible Kubernetes, Terraform, and operating systems versions with the current KubeOne version.
KubeOne works on any infrastructure out of the box. Natively supported providers have support for additional features and are frequently tested with the current KubeOne version. The additional features include the KubeOne Terraform integration and the integration with Kubermatic machine-controller.
KubeOne supports AWS, Azure, DigitalOcean, GCP, Hetzner Cloud, OpenStack, Packet, and VMware vSphere.
Each KubeOne version supports Kubernetes versions supported by upstream at the time of the KubeOne release. You can find more details about the upstream support policy in the Version Skew Policy document.
In the following table you can find the supported Kubernetes versions for the current KubeOne version.
KubeOne 1.3 supports only Kubernetes 1.19 and newer. Clusters running Kubernetes 1.18 or older must be upgraded with an older KubeOne release according to the table below.
| KubeOne version | 1.22 | 1.21* | 1.20** | 1.19** | 1.18** | 1.17** |
|---|---|---|---|---|---|---|
| v1.3+ | ✓ | ✓ | ✓ | ✓ | - | - |
| v1.2+ | - | ✓ | ✓ | ✓ | ✓ | - |
| v1.0+ | - | - | - | ✓ | ✓ | ✓ |
* Kubernetes 1.21 is in the maintenance mode which means that only critical and security issues are fixed. It’s strongly recommended to upgrade to a newer Kubernetes version as soon as possible.
** Kubernetes 1.20, 1.19, 1.18, and 1.17 have reached End-of-Life (EOL). We strongly recommend upgrading to a supported Kubernetes release as soon as possible.
We recommend using a Kubernetes release that’s not older than one minor release than the latest Kubernetes release. For example, with 1.22 being the latest release, we recommend running at least Kubernetes 1.21.
The KubeOne Terraform integration requires Terraform v1.0 or newer.
For more details, you can check the versions.tf file that comes with the
example Terraform configs (example versions.tf file).
The following operating systems are supported:
* RHEL 8.3 and 8.4 are supported only with KubeOne 1.3.3 and newer.