How to fix the error in YAML file converting yaml to JSON? mapping values are not allowed in this context"

This was a weird one. Turns out your hyphens were the wrong type :) all your instances of - were actually – (see the difference? one's longer).

Here's a working file:

apiVersion: v1kind: Servicemetadata:  name: feedback  labels:    run: feedbackspec:  ports:    - port: 80      targetPort: 3000      protocol: TCP  type: NodePort  selector:    run: feedback---apiVersion: extensions/v1beta1kind: Deploymentmetadata:  name: feedbackspec:  replicas: 1  template:    metadata:      labels:        run: feedback  spec:    containers:      - name: feedback        image: username/feedback        ports:          – containerPort: 8888---apiVersion: v1kind: Servicemetadata:  name: mongo  labels:    run: mongospec:  ports:    - port: 27017      targetPort: 27017      protocol: TCP  selector:    run: mongo---apiVersion: extensions/v1beta1kind: Deploymentmetadata:  name: mongospec:  template:    metadata:      labels:        run: mongo    spec:      containers:        - name: mongo          image: mongo          ports:            - containerPort: 27017

Side note: this is definitely not node.js – please tag as kubernetes