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gcloud: Wed Jan 25 10:09:52 UTC 2023

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gcloud/container/clusters/upgrade
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@ -11,35 +11,36 @@ SYNOPSIS
DESCRIPTION
Upgrades the Kubernetes version of an existing container cluster.
This command upgrades the Kubernetes version of the nodes or master of a
cluster. Note that the Kubernetes version of the cluster's master is also
This command upgrades the Kubernetes version of the node pools or master of
a cluster. Note that the Kubernetes version of the cluster's master is also
periodically upgraded automatically as new releases are available.
If desired cluster version is omitted, node upgrades default to the current
master version and master upgrades default to the default cluster version,
which can be found in the server config.
If desired cluster version is omitted, node pool upgrades default to the
current master version and master upgrades default to the default cluster
version, which can be found in the server config.
By running this command, all of the cluster's nodes will be deleted and
recreated one at a time. While persistent Kubernetes resources, such as
pods backed by replication controllers, will be rescheduled onto new nodes,
a small cluster may experience a few minutes where there are insufficient
nodes available to run all of the scheduled Kubernetes resources.
During node pool upgrades, nodes will be deleted and recreated. While
persistent Kubernetes resources, such as Pods backed by replication
controllers, will be rescheduled onto new nodes, a small cluster may
experience a few minutes where there are insufficient nodes available to
run all of the scheduled Kubernetes resources.
Please ensure that any data you wish to keep is stored on a persistent disk
before upgrading the cluster. Ephemeral Kubernetes resources--in
particular, pods without replication controllers--will be lost, while
particular, Pods without replication controllers--will be lost, while
persistent Kubernetes resources will get rescheduled.
EXAMPLES
Upgrade the nodes of sample-cluster to the Kubernetes version of the
cluster's master.
Upgrade the node pool pool-1 of sample-cluster to the Kubernetes version of
the cluster's master.
$ gcloud container clusters upgrade sample-cluster
$ gcloud container clusters upgrade sample-cluster --node-pool=pool-1
Upgrade the nodes of sample-cluster to Kubernetes version 1.14.7-gke.14:
Upgrade the node pool pool-1 of sample-cluster to Kubernetes version
1.14.7-gke.14:
$ gcloud container clusters upgrade sample-cluster \
--cluster-version="1.14.7-gke.14"
--node-pool=pool-1 --cluster-version="1.14.7-gke.14"
Upgrade the master of sample-cluster to the default cluster version:
@ -55,10 +56,11 @@ FLAGS
complete.
--cluster-version=CLUSTER_VERSION
The Kubernetes release version to which to upgrade the cluster's nodes.
The GKE release version to which to upgrade the cluster's node pools or
master.
If desired cluster version is omitted, node upgrades default to the
current master version and master upgrades default to the default
If desired cluster version is omitted, node pool upgrades default to
the current master version and master upgrades default to the default
cluster version, which can be found in the server config.
You can find the list of allowed versions for upgrades by running:
@ -81,8 +83,7 @@ FLAGS
$ gcloud container get-server-config
--master
Upgrade the cluster's master to the latest version of Kubernetes
supported on Kubernetes Engine. Nodes cannot be upgraded at the same
Upgrade the cluster's master. Node pools cannot be upgraded at the same
time as the master.
--node-pool=NODE_POOL