I have a kubernetes setup with 1 master and 1 slave, hosted on DigitalOcean Droplets. For exposing my services I want to use Ingresses.
As I have a bare metal install, I have to configure my own ingress controller. How do I get it to listen to port 443 or 80 instead of the 30000-32767 range?
For setting up the ingress controller I used this guide: https://kubernetes.github.io/ingress-nginx/deploy/
My controller service looks like this:
apiVersion: v1
kind: Service
metadata:
name: ingress-nginx
namespace: ingress-nginx
labels:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
spec:
type: NodePort
ports:
- name: http
port: 80
targetPort: 80
protocol: TCP
- name: https
port: 443
targetPort: 443
protocol: TCP
selector:
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginxAnd now obviously, because the NodePort range is 30000-32767, this controller doesn't get mapped to port 80 or 443:
➜ kubectl get services --all-namespaces
NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
ingress-nginx ingress-nginx NodePort 10.103.166.230 <none> 80:30907/TCP,443:30653/TCP 21m
You can’t bind ingress service to port 80. You can run HAProxy on the host and redirect port 80,443 request Ingress service port number.
I agree with @Matthew L Daniel, if you don't consider to use external load balancer, the best option would be sharing host network interface with ingress-nginx Pod by enabling hostNetwork option in the Pods' spec:
template:
spec:
hostNetwork: trueThus, NGINX Ingress controller can bind ports 80 and 443 directly to Kubernetes nodes, without mapping special proxy ports (30000-32767) to the nested services. Find more information here.