Ingress with single service on docker on mac - kubernetes

Question

Completely new do K8s here, I'm trying to deploy/connect Ingress to a sample single service on docker for local (docker for mac) and be able to hit it to run the service
1- sample service looks like this (my_service.js) :
const express = require('express')
let app = express()
app.get('/', (req, res) => {
res.send('Hello service')
})
const PORT = process.env.PORT || 9000
app.listen(
PORT,
() => console.log('Listening')
)
and I build the image (with a docker file):
docker build . -t sample-service-image
2- Now from K8s perspective:
here's the deployment file
apiVersion: apps/v1
kind: Deployment
metadata:
name: sample-service
labels:
app: sample-service
spec:
replicas: 1
selector:
matchLabels:
app: sample-service
template:
metadata:
labels:
app: sample-service
spec:
containers:
- name: sample-service
image: sample-service-image
imagePullPolicy: Never
ports:
- containerPort: 9000
kubectl apply -f deployment.yaml
and expose it as a service:
kubectl expose deploy sample-service --type=NodePort
3- Now from Ingress (ingress-sample.yaml) :
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: ingress-sample
spec:
backend:
serviceName: sample-service
servicePort: 80
kubectl create -f ingress-sample.yaml
[UPDATE] I deployed an ingress controller from here:
kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/provider/baremetal/service-nodeport.yaml
this is what I get
$kubectl get ingress
NAME HOSTS ADDRESS PORTS AGE
ingress-sample * localhost 80 8m
kubectl get services --all-namespaces | grep nginx
ingress-nginx ingress-nginx NodePort 10.106.47.48 <none> 80:31448/TCP,443:31512/TCP 2h
tried to hit it on http://localhost:31448/ but I get 503 from NGINX ... so I guess it's not properly connected to sample-service.
how should I hit Ingress to be able to call the sample-service?

Answer 1

You need to specify Host header while hitting your service. For example
curl -H "HOST: abc" http://localhost:31448/
Since your ingress definition did not specify any host configuration, you can pass any value.
For more information - see.