infinite-calls.yaml

f.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: infinite-calls
  labels:
    app: infinite-calls
spec:
  replicas: 1
  selector:
    matchLabels:
      app: infinite-calls
  template:
    metadata:
      name: infinite-calls
      labels:
        app: infinite-calls
    spec:
      containers:
      - name: infinite-calls
        image: busybox
        command:
        - /bin/sh
        - -c
        - "while true; do wget -q -O- http://php-apache; done"

k.bash

# https://www.techtarget.com/searchitoperations/tutorial/Kubernetes-performance-testing-tutorial-Load-test-a-cluster

sudo yum install openssl
curl https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 > get_helm.sh
chmod 700 get_helm.sh
./get_helm.sh
kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
kubectl get deployment metrics-server -n kube-system
minikube addons enable metrics-server 
kubectl apply -f https://k8s.io/examples/application/php-apache.yaml
kubectl get pods
kubectl autoscale deployment php-apache --cpu-percent=80 --min=1 --max=4
kubectl get hpa
kubectl get hpa -w
kubectl describe hpa
kubectl apply -f https://gist.githubusercontent.com/mehmetaydogduu/865512765f1697ba706174f45cb944b0/raw/19f292cd6e33a258f2901d4ef1bc09778d5a6a79/f.yaml
kubectl get pods
kubectl scale deployment/infinite-calls --replicas 4
kubectl exec -it <container name>  sh
ps
kubectl get services
kubectl port-forward svc/php-apache 80:80
kubectl scale deployment/infinite-calls --replicas 4