https://github.com/flavio-fernandes/knative_demo/blob/8e420247fe4413d510071b8955562210596a2aec/k8s/foo.yaml

foo.yaml

---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: foo-example
  namespace: default
spec:
  replicas: 2
  template:
    metadata:
      labels:
        app: foo-example
    spec:
      containers:
      - name: foo
        # NOTE: Make sure to use the name of your $PROJECT here,
        #       which is what you provided when doing a docker push
        image: gcr.io/knative-proj/foo
        ports:
        - containerPort: 5000
          protocol: TCP
        env:
        - name: TARGET
          value: "Old school deployment"
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: foo-example
  name: foo-np
  namespace: default
spec:
  ports:
  - port: 8080
    protocol: TCP
    targetPort: 5000
  selector:
    app: foo-example
  sessionAffinity: None
  type: NodePort