Kubernetes image concept compared to Docker?
k8s is a container orchestration tool
a dockerfile is used to build an image
k8s is able to run docker containers


One could use yaml files to deploy containers:


apiVersion: apps/v1beta1 # for versions before 1.6.0 use extensions/v1beta1
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  replicas: 3
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.7.9
        ports:
        - containerPort: 80