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.