Prepare the following YAML file, which is a simple Deployment that launches two nginx containers. Also, a NodePort service with TCP—30080 exposed:

# cat 3-1-1_deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-nginx
spec:
  replicas: 2
  selector:
    matchLabels:
      service : nginx
  template:
    metadata:
      labels:
        service : nginx
    spec:
      containers:
        - name: my-container
          image: nginx
---
apiVersion: v1
kind: Service
metadata:
  name: my-nginx
spec:
  ports:
    - protocol: TCP
      port: 80
      nodePort: 30080
  type: NodePort
  selector:
    service: nginx

Let's use kubectl to create the resources used by the preceding configuration file:

// create deployment and service
# kubectl create -f 3-1-1_deployment.yaml
deployment "my-nginx" created
service "my-nginx" created

After a few seconds, we should see that the pods are scheduled and up and running:

# kubectl get pods
NAME READY STATUS RESTARTS AGE
my-nginx-6484b5fc4c-9v7dc 1/1 Running 0 7s
my-nginx-6484b5fc4c-krd7p 1/1 Running 0 7s

The service is up, too:

# kubectl get services
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 20d
my-nginx NodePort 10.105.9.153 <none> 80:30080/TCP 59s