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Kubernetes testing

For manual or automated testing, we can use a minikube kubernetes cluster.

To test with a real multi-node cluster see the Kubernetes EKS testing documentation.

Pre-requisite

You'll need the following:

  • AWS account
  • an AWS specific region (us-east-1 for example)
  • In your region, create a key pair of type pem in the EC2 UI and keep both the name of the file you used, and the private key file store on your local machine
  • Ensure your pem key file has correct permission by running sudo chmod 0400 myKeyPair.pem
  • Create your demo-deployer user config file following this documentation https://github.com/newrelic/demo-deployer/blob/main/documentation/user_config/aws.md . Note, if you'll be running the demo-deployer through docker, you'll want the secretKeyPath to be defined with the following path /mnt/deployer/configs/myKeyPair.pem

Provision new minikube cluster using the demo-deployer

The demo-deployer is used to provision a minikube host

docker pull newrelic/deployer:latest
docker run -it\
    -v $HOME/configs/:/mnt/deployer/configs/\
    --entrypoint ruby newrelic/deployer main.rb -c configs/<user config filename>.json -d https://raw.githubusercontent.com/newrelic/open-install-library/main/test/manual/definitions/ohi/linux/k8-minikube-empty.json

Once logged in, you can execute kubectl commands to access the cluster. Here are a few commands to check the cluster is running.

kubectl get nodes
kubectl get pods --all-namespaces

Deploying SockShop

If desired, you can install a demo application on the cluster using SockShop Note, no traffic is generated with this deployment.

git clone https://github.com/microservices-demo/microservices-demo.git
kubectl create -f microservices-demo/deploy/kubernetes/complete-demo.yaml

Un-install newrelic instrumentation

Assuming you've deployed newrelic instrumentation using the manifest file, you can un-install the newrelic instrumentation by running the command below (assuming you SSH into the bastion host).

kubectl delete -f <manifest.yaml>

Reset minikube

If you'd like to restart with a fresh new K8s/minikube, you can simply run the delete and start commands below

minikube delete minikube start --memory 8192 --cpus 4

You can then re-create SockShop and install NewRelic on a freshly created cluster.