Deploy-Labs.txt

Lab 1
vi nginx-rc.yaml


apiVersion: v1
kind: ReplicationController
metadata:
  name: nginx
spec:
  replicas: 3
  selector:
    app: nginx
  template:
    metadata:
      name: nginx
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.12.2
        ports:
        - containerPort: 80



kubectl create -f nginx-rc.yaml

kubectl get pods 

kubectl rolling-update nginx --image=nginx

kubectl get pods 

kubectl delete pods <pod_name>

kubectl get pods 

kubectl edit rc nginx

kubectl get pods 

kubectl delete -f nginx-rc.yaml 





Lab 2. 

kubectl create deployment nginx --image=nginx:1.15 --replicas=5
kubectl get deployment/nginx
Kubectl edit deploy nginx
kubectl describe deployment/nginx
kubectl rollout history deployment/nginx
kubectl set image deployment/nginx nginx=nginx:1.16
kubectl rollout history deployment/nginx
kubectl rollout undo deployment/nginx
kubectl rollout undo deployment/nginx --to-revision=2
kubectl scale --replicas=50 deployment/nginx
kubectl rollout pause deployment/nginx
kubectl rollout status deployment/nginx
kubectl rollout resume deployment/nginx



Lab 3.

vi hpa-deploy.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx-deployment
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx-deployment
  template:
    metadata:
      labels:
        app: nginx-deployment
    spec:
      containers:
      - image: nginx
        name: nginx
        resources:
          limits:
            cpu: 200m
            memory: 100Mi
          requests:
            cpu: 100m
            memory: 50Mi


kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml

kubectl create -f hpa-deploy.yaml

kubectl get deployments

kubectl top pods

kubectl autoscale deployment nginx-deployment --min=3 --max=6 --cpu-percent=50

kubectl get hpa

kubectl describe hpa nginx-deployment

kubectl exec -it <pod_name> bash

# while true; do true; done

kubectl get hpa nginx-deployment

kubectl get deployments nginx-deployment

kubectl describe hpa nginx-deployment

kubectl delete hpa nginx-deployment

kubectl delete deployments nginx-deployment