Needing help with wildcard certificate

[Nicolas Larcipretti]

Hey people! I'm quite new to this community and I hope I'm addressing this question in the right place, if not, I'm trully sorry.

I'm struggling  with wildcard SSL certificates configuration, can anyone help me out?

I'm trying to use a single certificate to all my subdomains, the thing is I need to redirect some specific subdomains to specific services in my Ingress, as follows:

apiVersion: extensions/v1beta1

kind: Ingress

metadata:

  name: my-wildcard-ingress

  namespace: myspace

  annotations:

    kubernetes.io/ingress.class: nginx

    certmanager.k8s.io/cluster-issuer: letsencrypt-prod

    kubernetes.io/tls-acme: "true"

    ingress.kubernetes.io/force-ssl-redirect: "true"

    ingress.kubernetes.io/ssl-redirect: "true"

spec:

  rules:

  - host: app1.myhost.com

    http:

      paths:

      - path: /

        backend:

          serviceName: some-service

          servicePort: 3000     

  - host: "*.myhost.com"

    http:

      paths:

      - path: /

        backend:

          serviceName: some-other-service

          servicePort: 8000

  tls:

  - secretName: myhost-com-tls

    hosts:

     - "*.myhost.com"

This Ingress works properly redirectwise, but it doesn't use my wildcard certificate to the app1.myhost.com (it uses some fake Kubernetes certificate).

How can I make Ingress use my wildcard certificate to all the defined "hosts" in "rules" section?

Cheers

Nicolas