Creating a Kubernetes Cluster

Search…
Below you will find examples of creating a small 3 node Kubernetes cluster to try NATS on multiple clouds.
Google Kubernetes Engine
Use gcloud to create a 3 node regional Kubernetes cluster on us-west2.
# Create a 3 node Kubernetes cluster. One node in each of the region's three zones.
gcloud container clusters create nats-k8s-cluster \
  --project $YOUR_GOOGLE_CLOUD_PROJECT \
  --region us-west2 \
  --num-nodes 1 \
  --machine-type n1-standard-2
Note that since this is a regional cluster we are specifying --num-nodes 1 which will create a kubelet on 3 different zones. If you are creating a single-zone cluster but want 3 nodes then you have to specify --num-nodes 3.
Amazon Kubernetes Service
The eksctl is a very helpful tool to manage EKS clusters, you can find more docs on how to set it up here.
# Create 3 node Kubernetes cluster
eksctl create cluster --name nats-k8s-cluster \
  --nodes 3 \
  --node-type=t3.large \
  --region=eu-west-1
​
# Get the credentials for your cluster
eksctl utils write-kubeconfig --name $YOUR_EKS_NAME --region eu-west-1
Digital Ocean
You can use doctl to create a cluster as follows:
doctl kubernetes cluster create nats-k8s-nyc2 --count 3 --region nyc1
Azure Kubernetes Service
Using az you can create a cluster like this:
# In case not done already, register to use some services:
az login
az provider register -n Microsoft.Network
az provider register -n Microsoft.Storage
az provider register -n Microsoft.Compute
az provider register -n Microsoft.ContainerService
​
# Create resource group and 3 node cluster
az group create --name nats --location westus
az aks create \
    --resource-group nats \
    --name nats  \
    --node-count 3 \
    --node-vm-size Standard_DS2_v2 \
    --load-balancer-sku basic \
    --enable-node-public-ip 
​
az aks get-credentials --resource-group nats --name nats
Eventually your cluster will be provided ExternalIPs that the NATS cluster can advertise to clients:
kubectl get nodes -o wide
NAME                       STATUS   ROLES   AGE     VERSION    INTERNAL-IP   EXTERNAL-IP      OS-IMAGE             KERNEL-VERSION      CONTAINER-RUNTIME
aks-nodepool1-18657977-0   Ready    agent   5d16h   v1.13.12   10.240.0.6    52.191.186.114   Ubuntu 16.04.6 LTS   4.15.0-1060-azure   docker://3.0.7
aks-nodepool1-18657977-1   Ready    agent   5d17h   v1.13.12   10.240.0.4    52.229.11.82     Ubuntu 16.04.6 LTS   4.15.0-1060-azure   docker://3.0.7
aks-nodepool1-18657977-2   Ready    agent   5d17h   v1.13.12   10.240.0.5    13.77.149.235    Ubuntu 16.04.6 LTS   4.15.0-1060-azure   docker://3.0.7
Deploying NATS with Helm
NATS Cluster and Cert Manager
Last modified 8mo ago
Export as PDF
Copy link
Edit on GitHub
Outline
Google Kubernetes Engine
Amazon Kubernetes Service
Digital Ocean
Azure Kubernetes Service