v1.2.0-beta.1

Attention Needed

• [Breaking] Support for CoreOS has been removed from KubeOne and machine-controller
  • CoreOS has reached End-of-Life on May 26, 2020
  • As an alternative to CoreOS, KubeOne supports Flatcar Linux
  • We recommend migrating your CoreOS clusters to the Flatcar Linux or other supported operating system
• [Breaking] Default values for OpenIDConnect has been corrected to match what's advised by the example configuration
  • Previously, there were no default values for the OpenIDConnect fields
  • This might only affect users using the OpenIDConnect feature
• [Breaking] Disallow and deprecate the PodPresets feature
  • [Action Required] If you're upgrading a cluster that uses the PodPresets feature from Kubernetes 1.19 to 1.20, you have to disable the PodPresets feature in the KubeOne configuration manifest
  • The PodPresets feature has been removed from Kubernetes 1.20 with no built-in replacement
  • It's not possible to use the PodPresets feature starting with Kubernetes 1.20, however, it currently remains possible to use it for older Kubernetes versions
  • The PodPresets feature will be removed from the KubeOneCluster API once Kubernetes 1.19 reaches End-of-Life (EOL)
  • As an alternative to the PodPresets feature, Kubernetes recommends using the MutatingAdmissionWebhooks.

Added

• Add support for Kubernetes 1.20
  • Previously, we've shared that there is an issue affecting newly created clusters where the first control plane node is unhealthy/broken for the first 5-10 minutes. We've investigated the issue and found out that the issue can be successfully mitigated by restarting the first API server. We've implemented a task that automatically restarts the API server if it's affected by the issue (#1243, #1245)
• Add support for Debian on control plane and static worker nodes (#1233)
  • Debian is currently not supported by machine-controller, so it's not possible to use it on worker nodes managed by machine-controller

Changed

API Changes

• [Breaking] Default values for OpenIDConnect has been corrected to match what's advised by the example configuration (#1235)
  • Previously, there were no default values for the OpenIDConnect fields
  • This might only affect users using the OpenIDConnect feature
• [Breaking] Disallow and deprecate the PodPresets feature (#1236)
  • [Action Required] If you're upgrading a cluster that uses the PodPresets feature from Kubernetes 1.19 to 1.20, you have to disable the PodPresets feature in the KubeOne configuration manifest
  • The PodPresets feature has been removed from Kubernetes 1.20 with no built-in replacement
  • It's not possible to use the PodPresets feature starting with Kubernetes 1.20, however, it currently remains possible to use it for older Kubernetes versions
  • The PodPresets feature will be removed from the KubeOneCluster API once Kubernetes 1.19 reaches End-of-Life (EOL)
  • As an alternative to the PodPresets feature, Kubernetes recommends using the MutatingAdmissionWebhooks.

General

• Add rsync on CentOS and Amazon Linux (#1240)

Bug Fixes

• Drop mounting Flexvolume plugins into the OpenStack CCM. This fixes the issue with deploying the OpenStack CCM on the clusters running Flatcar Linux (#1234)
• Ensure all credentials are available to be used in addons. This fixes the issue with the Backups addon not working on non-AWS providers (#1248)

Updated

• Update machine-controller to v1.25.0 (#1238)

Removed

• [Breaking] Support for CoreOS has been removed from KubeOne and machine-controller (#1232)
  • CoreOS has reached End-of-Life on May 26, 2020
  • As an alternative to CoreOS, KubeOne supports Flatcar Linux
  • We recommend migrating your CoreOS clusters to the Flatcar Linux or other supported operating system

Checksums

SHA256 checksums can be found in the kubeone_1.2.0-beta.1_checksums.txt file.