This page shows you how to manage your clusters in Google Kubernetes Engine. To learn about how clusters work, refer to Cluster Architecture.
Before you begin
To prepare for this task, perform the following steps:
- Ensure that you have enabled the Google Kubernetes Engine API. Enable Google Kubernetes Engine API
- Ensure that you have installed the Cloud SDK.
- Set your default project ID:
gcloud config set project [PROJECT_ID]
- If you are working with zonal clusters, set your default compute zone:
gcloud config set compute/zone [COMPUTE_ZONE]
- If you are working with regional clusters, set your default compute region:
gcloud config set compute/region [COMPUTE_REGION]
- Update
gcloudto the latest version:gcloud components update
Viewing your clusters
gcloud
To view a specific cluster, run the following command:
gcloud container clusters describe [CLUSTER_NAME]
To view all clusters in your default zone:
gcloud container clusters list
Console
To view your clusters, visit the Google Kubernetes Engine menu in GCP Console.
Visit the Google Kubernetes Engine menu
To see more information about a cluster, select the cluster from the list.
Setting a default cluster for kubectl
If you have multiple clusters, you can set a default cluster for the
kubectl command-line tool.
To learn more, refer to Setting a default cluster for kubectl
commands.
Setting a default cluster for gcloud
gcloud
To set a default cluster for gcloud commands, run the following command:
gcloud config set container/cluster [CLUSTER_NAME]
Adding or removing zones
The following sections explain how to add or remove cluster zones.
Changing zones for zonal clusters
gcloud
To add or remove zones for a zonal cluster, use the gcloud container
clusters update command:
gcloud container clusters update [CLUSTER_NAME] \ --zone [COMPUTE_ZONE] \ --node-locations [[COMPUTE_ZONE],[COMPUTE_ZONE],...]
where:
- [CLUSTER_NAME] is the name you choose for the cluster
- [COMPUTE_ZONE] is the zone for the cluster control plane
[[COMPUTE_ZONE],[COMPUTE_ZONE]...]is all of the desired zones. Include the cluster control plane's zone.
For example, example-cluster runs in us-central1-a.
To add two more zones to the cluster, you'd run the following command:
gcloud container clusters update example-cluster \ --zone us-central1-a --node-locations us-central1-a,us-central1-b,us-central1-c
As another example, example-cluster runs in us-central1-a,
us-central1-b and us-central1-c. If you only want the cluster to run in
us-central1-a and us-central1-b, you'd run the following command:
gcloud container clusters update example-cluster \ --zone us-central1-a \ --node-locations us-central1-a,us-central1-b
Console
To add or remove zones in an existing cluster, perform the following steps:
Visit the Google Kubernetes Engine menu in GCP Console.
Click the cluster's Edit button, which looks like a pencil.
- From the Additional zones section, select the desired zones.
- Click Save.
Changing zones for regional clusters
Currently, it is only possible to change the zones for existing regional
clusters using the gcloud command.
gcloud
To add or remove zones for a regional cluster, use the gcloud container
clusters update command with the --region flag:
gcloud container clusters update [CLUSTER_NAME] \ --region [REGION] \ --node-locations [COMPUTE_ZONE,COMPUTE_ZONE,...]
where:
- [CLUSTER_NAME] is the name of the cluster.
- [REGION] is the region in which the cluster runs.
[[COMPUTE_ZONE],[COMPUTE_ZONE],...]is all of the desired zones.
For example, example-cluster runs in us-central1-a and
us-central1-b. To add us-central1-c, you'd run the following command:
gcloud container clusters update example-cluster \ --region us-central1 \ --node-locations us-central1-a,us-central1-b,us-central1-c
As another example, example-cluster runs in us-central1-a,
us-central1-b and us-central1-c. If you only want the cluster to run in
us-central1-a and us-central1-b, you'd run the following command:
gcloud container clusters update example-cluster \ --region us-central1 \ --node-locations us-central1-a,us-central1-b
