How to access the ingress from all hosts?

Question

I'm setting a bare-metal kubernetes cluster for a web application in a google cloud instance, I am connecting to microservices through an ingress controller. How do I access the ingress controller from all incoming hosts?

There is a pod running angular web application and another pod running a node api microservice. Angular Web Application has been exposed globally. When accessing the microservice externally and passing the header with the hostname I was able to get the expected response. On removing the host in the ingress yaml I am not able to access the ingress.

kind: Ingress
metadata:
  annotations:
    ingress.kubernetes.io/rewrite-target: nginx
  creationTimestamp: "2019-08-12T07:41:37Z"
  generation: 7
  name: test
  namespace: default
  resourceVersion: "546400"
  selfLink: /apis/extensions/v1beta1/namespaces/default/ingresses/test
  uid: 374836d2-34c3-4053-b0e3-9fe3f63167cc
spec:
  rules:
  - host: bar.com
    http:
      paths:
      - backend:
          serviceName: login-service
          servicePort: 3000
        path: /login-service
      - backend:
          serviceName: organization-service
          servicePort: 3000
        path: /organization-service
status:
  loadBalancer:
    ingress:
    - ip: 10.128.0.16
    - ip: 203.0.113.2

I except the ingress to be accessed from all the hosts other than the specified host(bar.com) in ingress.

Any other way to access the API microservice from the outside cluster(globally)?

Isn't the ingress itself exposed by a Service? – weibeld Aug 14 '19 at 10:15 — weibeld, Aug 14 '19 at 10:15
@weibeld Yes, I have exposed the ingress-nginx service. – Jagan Karan Aug 14 '19 at 10:22 — Jagan Karan, Aug 14 '19 at 10:22

score 3 · Accepted Answer · answered Aug 22 '19 at 07:04

In order to access the API service From outside the cluster(Globally).

Create a proxy nginx server and expose the port of the nginx proxy server. From the web application server, call a request to the proxy server through the external IP and exposed Port. The proxy server will pass the request to the respected API microservice and return the expected response.

Edit the nginx.conf file.

location /<your_requested_URL> {
proxy_pass http://service_name:port;
}

How to access the ingress from all hosts?

1 Answers1