Workshop2 Nginx+NodePort

Deploying NGINX on Kubernetes Using Deployment YAML

Workshop Overview:
This workshop will walk participants through the steps to deploy an NGINX web server on Kubernetes using a YAML manifest file. By the end of the workshop, participants will have learned how to create and apply a Kubernetes Deployment, manage Pods, and expose the application via a Kubernetes Service.

Learn:

• Basic knowledge of Kubernetes concepts (Pods, Deployments, and Services). Access to a Kubernetes cluster
• kubectl installed and configured to communicate with the Kubernetes cluster.

Hands-on Section:

• create nginx-deployment.yml file

mkdir workshop2
cd workshop2

cat <<EOF | tee nginx-deployment.yml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:latest
        ports:
        - containerPort: 80

EOF

• Apply Deployment

$ kubectl apply -f nginx-deployment.yml

• Verify

$ kubectl get deployments -A
$ kubectl get pods -A

• Create service file

cat <<EOF | tee nginx-service.yml
apiVersion: v1
kind: Service
metadata:
  name: nginx-service
spec:
  type: NodePort
  selector:
    app: nginx
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
      nodePort: 30007
EOF

• Apply Service

$ kubectl apply -f nginx-service.yml

• Run

$ kubectl get svc -A
$ kubectl get pod -A -o wide

open browser [http://192.168.35.21:30007]