Go inside of a folder "/files/cloud-configs" and open file Cloud Config for K8s master In this config you need to replace placeholder with an actual IP address. Open list of the instances ("Services" - "EC2" - "Instances") and click on the ETCD instance. At the bottom you should see information about this VM, you need Private IP :
Copy it and replace all placeholder.
The next step is to actually create Kubernetes Master VM. Go to /files/commands folder and execute the following commands:
chmod +x create-k8s-master.sh
./create-k8s-master.sh
Expected output is
{
"OwnerId": "...",
"ReservationId": "...",
"Groups": [],
"Instances": [
{
"Monitoring": {
"State": "disabled"
},
...
}