07-basic-node-app-deployment.yaml

apiVersion: apps/v1 #The apiVersion for this object is currently app/v1
kind: Deployment
# In the metadata, we define the name of this Deployment and its label.
metadata:
  name: basic-node-js-app
  labels:
    name: basic-node-js-app
  annotations:
    kubernetes.io/change-cause: "Deployed Version 1"
spec:
  replicas: 4 #The spec field defines how many pods we need this Deployment to maintain.
  selector: #Selection criteria that the controller uses to acquire the target pods.
    matchLabels:
      name: basic-node-js-app
  #The pod template is used to create (or recreate) new pods.
  #It has its own metadata, and spec where the containers are specified
  template:
    metadata:
      labels:
        name: basic-node-js-app
    spec:
      containers:
        - name: basic-node-js-app
          image: docker.io/k8sworkshop07jul/591242-basic-node-app:v3
          ports:
            - containerPort: 8080
          imagePullPolicy: Always