testuser@localhost:~$ kubectl config get-clusters
NAME
project1_korea-seoul-a_cluster1
testuser@localhost:~$ cat ~/.kube/config | grep cluster:
- cluster:
cluster: project1_korea-seoul-a_cluster1
testuser@localhost:~$ kubectl config get-clusters
NAME
project1_korea-seoul-a_cluster1
gke_my-project-802_asia-northeast3-b_cluster2
testuser@localhost:~$ echo $KUBECONFIG
/home/testuser/.kube/clusters/cluster1:/home/testuser/.kube/clusters/cluster2
testuser@localhost:~$ kubectl config view | grep '^- cluster:' -A3 | grep name:
name: project1_korea-seoul-a_cluster1
name: gke_my-project-802_asia-northeast3-b_cluster2
testuser@localhost:~$ kubectl config get-contexts
CURRENT NAME CLUSTER AUTHINFO NAMESPACE
* context1 project1_korea-seoul-a_cluster1 admin-user
testuser@cluster2 gke_my-project-802_asia-northeast3-b_cluster2 testuser