demo

Heterogeneous Kubernetes cluster demo

Download this repository to your Windows worker

In a PowerShell with Administrator privileges run:

cd C:\
Start-BitsTransfer https://github.com/apprenda/kubernetes-ovn-heterogeneous-cluster/archive/master.zip
cmd /c '"C:\Program Files\7-Zip\7z.exe" x master.zip'
rm master.zip

Build images

Since we are not caching the Windows Containers images to be used for this demo, you'll need to build them on every Windows node, as follows:

redis-master

There is no need to build an image since the official redis:3.0-nanoserver will be used.

redis-slave

cd C:\kubernetes-ovn-heterogeneous-cluster-master\demo\docker\redis-slave\
docker build -t redis-slave:3.0-nanoserver .

guestbook

cd C:\kubernetes-ovn-heterogeneous-cluster-master\demo\docker\guestbook\
docker build -t guestbook:v0.3-nanoserver .

Deploy

Deployment may happen anywhere for as long as there's access to the Kubernetes API, as follows:

cd ~/kubernetes-ovn-heterogeneous-cluster/demo/deploy

Create the services:

kubectl create -f redis-master-svc.yaml
kubectl create -f redis-slave-svc.yaml
kubectl create -f guestbook-svc.yaml

Now, run the Redis master instance:

kubectl create -f redis-master-deployment.yaml
kubectl get pods  # until status is Running
kubectl logs <pod-name>  # verify Redis started successfully

On your Windows worker node, docker ps should now show a running redis:3.0-nanoserver container.

Wait until Redis master is running, then run the Redis slave instances:

kubectl create -f redis-slave-deployment.yaml

Lastly, run the guestbook app instances:

kubectl create -f guestbook-deployment.yaml