Kubernetes 1.7 available in IBM Bluemix Container Service

5 min read

Kubernetes 1.7 available in IBM Bluemix Container Service

We’re excited to announce that Kubernetes 1.7 is available for IBM Bluemix Container Service. You can now update your Kubernetes master and worker nodes to the latest supported version of Kubernetes by using either the Bluemix dashboard or the CLI.

To get the most of the 1.7 features, you must enable those features after you update. Before you update, review the Kubernetes versions to see any changes that you might need to make to your deployments in order to avoid downtime for your apps.

What you get:

  • Updates: either in the GUI or the CLI

  • Minimal downtime: cloud-native apps will have no downtime, but you can’t modify the cluster for 5-15 minutes.

  • Patch updates for the Kubernetes master happens automatically. You choose when to update the patch level for your worker nodes.

  • Receive notifications in the GUI and CLI when updates are available for your cluster.

  • New Kubernetes features: improved RBAC, updated network policies, ability to assign pods to nodes, rolling updates and rollbacks to daemon sets, private DNS zones

  • Calico v2.4.1, which is now deployed as a Kubernetes hosted daemon set, Kubernetes add-on manager v6.4, Kubernetes dashboard v1.6.3, Kubernetes DNS 1.14.4, Kubernetes heapster v1.4.1

What you need to do: 

  1. Plan how you want to make use of the new features.

  2. Review the deprecation list of Kubernetes features:

    1. 1.7 deprecations: https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG.md#deprecations

    2. 1.6 deprecations: https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG.md#deprecations-1

  3. Review the Kubernetes ChangeLog to see how your favorite features are affected: https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG.md

  4. Pick when you want to update both the master and the worker nodes. For the master, you will have several minutes when you cannot modify the cluster, but your deployed pods will remain active.

  5. Complete the update steps: https://console.bluemix.net/docs/containers/cs_cluster.html#cs_cluster_update




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