Unable to connect to minikube service in host - docker

Question

I've gone through a fair few stackoverflow posts, none are working... So here's my issue:
I've got a simple node app running on broadcast 0.0.0.0 at port 5000, it's got a simple single endpoint at /.
I've got two k8s objects, here's my Deployment object:
### pf deployment
apiVersion: apps/v1
kind: Deployment
metadata:
# Unique key of the Deployment instance
name: pf-deployment
spec:
# 3 Pods should exist at all times.
replicas: 1
selector:
matchLabels:
app: public-facing
template:
metadata:
labels:
# Apply this label to pods and default
# the Deployment label selector to this value
app: public-facing
spec:
containers:
- name: public-facing
# Run this image
image: pf:ale8k
ports:
- containerPort: 5000
Next, here is my Service object:
### pf service
apiVersion: v1
kind: Service
metadata:
name: pf-service
labels:
run: pf-service-label
spec:
type: NodePort ### may be ommited as it is a default type
selector:
name: public-facing ### should match your labels defined for your angular pods
ports:
- protocol: TCP
targetPort: 5000 ### port your app listens on
port: 5000 ### port on which you want to expose it within your cluster
Finally, a very simple dockerfile:
### generic docker file
FROM node:12
WORKDIR /usr/src/app
COPY . .
RUN npm i
EXPOSE 5000
CMD ["npm", "run", "start"]
I have my image in the minikubes local docker registry, so that's not the issue...
When I try:
curl $(minikube service pf-service --url)
I get:
curl: (7) Failed to connect to 192.168.99.101 port 31753: Connection refused
When I try:
minikube service pf-service
I get a little further output:
Most likely you need to configure your SUID sandbox correctly
I have the hello-minikube image running, this works perfectly fine. So I presume it isn't my nacl?
I'm very new to kubernetes, so apologies in advance if it's very simple.
Thanks!

Answer 1

Service has got selector name: public-facing but pod has got label app: public-facing. They need to be same for Endpoints of the service to be populated with pod IPs.
If you execute below command
kubectl describe svc pf-service
You will see that Endpoints has got no IPs which is the cause of connection refused error.
Change the selector in service as below to make it work.
### pf service
apiVersion: v1
kind: Service
metadata:
name: pf-service
labels:
run: pf-service-label
spec:
type: NodePort ### may be ommited as it is a default type
selector:
app: public-facing ### should match your labels defined for your angular pods
ports:
- protocol: TCP
targetPort: 5000 ### port your app listens on
port: 5000 ### port on which you want to expose it within your cluster