This can be changed to identify separate clusters.
export CLUSTER_PREFIX=quickstart
To find the latest CoreOS alpha/beta/stable images, please see the CoreOS GCE Documentation. Then replace the --image flag in the command below.
Launch nodes:
$ gcloud compute instances create ${CLUSTER_PREFIX}-core1 \
--image https://www.googleapis.com/compute/v1/projects/coreos-cloud/global/images/coreos-stable-1068-9-0-v20160809 \
--zone us-central1-a --machine-type n1-standard-1
Tag the first node as an apiserver node, and allow traffic to 443 on that node.
$ gcloud compute instances add-tags ${CLUSTER_PREFIX}-core1 --tags ${CLUSTER_PREFIX}-apiserver
$ gcloud compute firewall-rules create ${CLUSTER_PREFIX}-443 --target-tags= ${CLUSTER_PREFIX}-apiserver --allow tcp:443
Replace <node-ip> with the EXTERNAL_IP from output of gcloud compute instances list k8s-core1.
$ IDENT=~/.ssh/google_compute_engine ./init-master.sh <node-ip>
After the master bootstrap is complete, you can continue to add worker nodes. Or cluster state can be inspected via kubectl:
$ kubectl --kubeconfig=cluster/auth/kubeconfig get nodes
Run the Launch Nodes step for each additional node you wish to add (changing the name from ${CLUSTER_PREFIX}-core1)
Get the EXTERNAL_IP from each node you wish to add:
$ gcloud compute instances list ${CLUSTER_PREFIX}-core2
$ gcloud compute instances list ${CLUSTER_PREFIX}-core3
Initialize each worker node by replacing <node-ip> with the EXTERNAL_IP from the commands above.
$ IDENT=~/.ssh/google_compute_engine ./init-worker.sh <node-ip> cluster/auth/kubeconfig
NOTE: It can take a few minutes for each node to download all of the required assets / containers. They may not be immediately available, but the state can be inspected with:
$ kubectl --kubeconfig=cluster/auth/kubeconfig get nodes