✏️ Add IngressClass in Traefik YAML

This is necessary with recent version of Traefik, because
it won't pick up Ingress resources that don't have an
IngressClass. So let's add an IngressClass and make it
the default.

k8s/traefik-v2.yaml

@@ -35,6 +35,9 @@ spec:
         - name: http
           containerPort: 80
           hostPort: 80
+        - name: https
+          containerPort: 443
+          hostPort: 443
         - name: admin
           containerPort: 8080
           hostPort: 8080
@@ -100,3 +103,12 @@ subjects:
 - kind: ServiceAccount
   name: traefik-ingress-controller
   namespace: kube-system
+---
+kind: IngressClass
+apiVersion: networking.k8s.io/v1
+metadata:
+  name: traefik
+  annotations:
+    ingressclass.kubernetes.io/is-default-class: "true"
+spec:
+  controller: traefik.io/ingress-controller