deployment.yml

apiVersion: apps/v1 # For versions before 1.9.0 use apps/v1beta2
kind: Deployment    
metadata:   # Data that helps  uniquely identify the object (using name, UID and namespace)          
  name: angular-k8s-deployment
spec:  # What state you desire for the object              
  selector:  # The selector field defines how the deployment finds which pod to manage       
    matchLabels:
      app: angular-k8s-deployment
  replicas: 3  # Tells the deployment to run 3 pods matching the template      
  template:
    metadata:
      labels:  # Labels are used as indentifying attributes for objects such as pods and replication controller.      
        app: angular-k8s-deployment
    spec:
      containers:
        - name: angular-k8s-deployment
          image: angular-app:latest
          imagePullPolicy: Never
          ports:
            - containerPort: 80
---
    apiVersion: v1
    kind: Service
    metadata:
      name: angular-k8s-service
      labels:
        name: angular-k8s-deployment
    spec:
      ports:
        - nodePort: 30170 # make the service available to network requests from external clients
          port: 80        # access the service via external port no
          targetPort: 80  # port number that container listening on
          protocol: TCP   
      selector:           
        app: angular-k8s-deployment
      type: NodePort     # which expose the application on a port across a each of your nodes