googlecloudsdk.calliope.exceptions.HttpException: ResponseError: code=400, message=Autopilot clusters must be regional clusters.

Problem

Trying to create an auto-cluster either using terraform or gcloud cli, and specifying the region name returns the error that ‘Autopilot clusters must be regional clusters.

So with gcloud this is the command and output

kosmas: (master %)$ gcloud container clusters create-auto test-cluster --region=europe-west6-b
Note: The Pod address range limits the maximum size of the cluster. Please refer to https://cloud.google.com/kubernetes-engine/docs/how-to/flexible-pod-cidr to learn how to optimize IP address allocation.
ERROR: (gcloud.container.clusters.create-auto) ResponseError: code=400, message=Autopilot clusters must be regional clusters.

Solution

Using the actual region name (that can be taken from the list of available zones/regions)

gcloud compute zones list

NAME                       REGION                   STATUS  NEXT_MAINTENANCE  TURNDOWN_DATE
us-east1-b                 us-east1                 UP
us-east1-c                 us-east1                 UP
...
europe-west6-b             europe-west6             UP
...

And using the correct region name (without the b)

gcloud container clusters create-auto test-cluster --region=europe-west6 --verbosity debug

...
Created [https://container.googleapis.com/v1/projects/gitlab-runner-343714/zones/europe-west6/clusters/test-cluster].
...
NAME          LOCATION      MASTER_VERSION   MASTER_IP     MACHINE_TYPE  NODE_VERSION     NUM_NODES  STATUS
test-cluster  europe-west6  1.21.6-gke.1503  xxx.xxx.xxx.xxx  e2-medium     1.21.6-gke.1503  3          RUNNING

kubectl error: “The connection to the server localhost:8080 was refused – did you specify the right host or port?”

Problem

You want to use the kubectl to get your cluster information but you are getting the following error message

$ kubectl cluster-info
To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
The connection to the server localhost:8080 was refused - did you specify the right host or port?

Solution

That could happen if you have already setup kubectl before or have used a different environment.

So you will need to first unset the environment variable KUBECONFIG with:

$ unset KUBECONFIG

and then use the gcloud client to set your environment again:


$ gcloud container clusters get-credentials your_cluster_name --zone europe-west2-a --project your_project_name

So after this you should be able to use kubectl to get the cluster information

kubeconfig entry generated for your_cluster_name.

$ kubectl cluster-info
Kubernetes master is running at https://xxx.xxx.xxx.xxx
GLBCDefaultBackend is running at https://xxx.xxx.xxx.xxx/api/v1/namespaces/kube-system/services/default-http-backend:http/proxy
Heapster is running at https://xxx.xxx.xxx.xxx/api/v1/namespaces/kube-system/services/heapster/proxy
KubeDNS is running at https://xxx.xxx.xxx.xxx/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
Metrics-server is running at https://xxx.xxx.xxx.xxx/api/v1/namespaces/kube-system/services/https:metrics-server:/proxy