Open Telekom Cloud for Business Customers

CCE – New release with Kubernetes 1.21

The new release of Cloud Container Engine(CCE) with Kubernetes version 1.21.7 is now available in EU-DE region. We recommend upgrading to the new version 1.21 in order to benefit from the security and other core improvements.

The important new features and updates of this release are listed below:

  • The CCE cluster supports Kubernetes version 1.21
    For more information about Kubernetes v1.21, see Kubernetes v1.21 Release Announcement.
  • API for querying cluster quotas
    Provides the API for querying cluster quotas to the external API gateway.
  • API for Hibernation
    Hibernate/Awake a cluster via API.
  • Data disk encryption of a worker node
    Possibility to encrypt the data disks of worker nodes with KMS key.
  • Supports Dedicated Load-Balancer
    Incorporation with Dedicated Load-Balancer(ELBv3).
  • Expiration date of downloaded Client Certificate
    Enabled option to set expiration date for downloaded cluster certificate (console + API).
  • Two-Way Authentication for Domain Names
    When an EIP/domain name of a cluster is modified, the server certificate will be updated automatically.
  • Supports Overlays
    The Docker storage mode of CentOS is changed from devicemapper to overlayfs.
  • Optimisation of CCE Cluster Version Management
    The format of cluster version number is changed to v1.21, and the original minor version number is not displayed anymore.
  • Optimisation of CCE master overload
    CCE control plane node reserves resources for kubelets to ensure stability during overload.
  • In-Place Upgrade
    Updates the Kubernetes components on cluster nodes without changing their OS version to reach Zero-Downime. Upgrade from v1.19 to v1.21 is available.

The CCE with Kubernetes v1.21 will also be released in EU-NL region soon. 

Further information can be found in the CCE area of the Help Center.


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