Kubernetes pulls a private DockerHub image

k8s_pulls_private_image.txt

# Run commands
kubectl create secret docker-registry registry_name \
                      --docker-server=https://index.docker.io/v2/ \
                      --docker-username=XXX \
                      --docker-password=XXX \
                      --docker-email=XXX

# Deployment.yaml
apiVersion: apps/v1beta2
kind: Deployment
metadata:
  name: app_name
spec:
  replicas: 3
  selector:
    matchLabels:
      app: app_name
  template:
    metadata:
      labels:
        app: app_name
    spec:
      containers:
      - image: user_name/image:1.0
        name: app_name
        ports:
        - containerPort: 80
      imagePullSecrets:
      - name: registry_name