In order e.g. to get the number of nodes in a GKE cluster, you need to:
glcoud command to switch to the appropriate projectgcloud command to get the credentials for the cluster in the likes ofgcloud container clusters get-credentials "${CLUSTER_NAME}" --zone "${ZONE}" --project "${PROJECT_ID}"(but after explicitly passing the zone)
Assuming I am powerful enough, is there a way to get e.g. the number of nodes for a GKE cluster just by iterating over the projects and then the clusters, e.g.
for project in gcp_projects:
clusters = get_clusters(project)
for cluster in clusters:
nodes = get_number_of_nodes(cluster)The following Python 3 script will print all clusters with the current node count in multiple projects (specified in the variable gcp_projects), in all zones (zone = '-' in the query means all zones) :
from googleapiclient import discovery
from oauth2client.client import GoogleCredentials
credentials = GoogleCredentials.get_application_default()
service = discovery.build('container', 'v1', credentials=credentials)
gcp_projects = ['project-1', 'project-2', 'project-3']
for project in gcp_projects:
request = service.projects().zones().clusters().list(projectId=project, zone='-')
response = request.execute()
if 'clusters' in response:
for cluster in response['clusters']:
print("%s,%s,%d" % (project, cluster['name'], cluster['currentNodeCount']))Sample result (project,clusterName,currentNodeCount) :
project1,cluster1-in-project1,3
project1,cluster2-in-project1,2
project2,cluster1-in-project2,6This example is based on the example provided in the documentation of projects.locations.clusters.list API.