Declaring your first application

Go ahead and pick one of the examples and create a deployment declaration, and try creating one using the declaration.

I recommend making a directory called deploy, and putting your declaration file within that. This is using the flask example:

flask.yml
apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: flask
  labels:
    run: flask
spec:
  template:
    metadata:
      labels:
         app: flask
    spec:
      containers:
      - name: flask
        image: quay.io/kubernetes-for-developers/flask:0.1.1
        ports: 
        - containerPort: 5000

Remove the existing deployment before you try out your file:

kubectl delete deployment flask

It is a good practice to use the --validate option to have kubectl check the files, and you can use it with --dry-run to compare the file to anything existing in Kubernetes to let you know specifically what it will...