January 2019
Intermediate to advanced
484 pages
11h 48m
English
Content preview from DevOps with Kubernetes - Second Edition
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Cluster upgrade
Once you start to manage Kubernetes, you may encounter difficulties when upgrading Kubernetes clusters. Due to the fact that the Kubernetes project is very aggressive, there's a new release around every three months, such as version 1.11.0 (released on June 27th 2018), 1.12.0 (released on September 27th 2018), and 1.13.0 (released on December 3rd 2018).
GKE also keeps adding new version support in a timely manner. This allows us to upgrade both master and nodes via the gcloud command. You can run the following command to see which Kubernetes version is supported by GKE:
$ gcloud container get-server-configFetching server config for us-west1-bdefaultClusterVersion: 1.10.9-gke.5defaultImageType: COSvalidImageTypes:- COS_CONTAINERD ...
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