Add ondemand plugin

templates/traefik-cm.yml.j2

@@ -24,6 +24,9 @@ data:
             entryPoint:
               to: websecure
               scheme: https
+              permanent: true
+    #    http3:
+    #      advertisedPort: 42
       websecure:
         address: ":8443/tcp"
         http:
@@ -33,6 +36,8 @@ data:
     #        - auth@file
     #        - secure_headers@file
     #        - crowdsec-bouncer@file
+    #    http3:
+    #      advertisedPort: 42
       traefik:
         address: ":9000/tcp"
       metrics:
@@ -63,8 +68,10 @@ data:
       kubernetesCRD:
     #    ingressClass: "traefik"
         throttleDuration: 2s
+        allowEmptyServices: true
       kubernetesIngress:
         ingressClass: "traefik"
+        allowEmptyServices: true
       file:
         directory: /etc/traefik/file/
         watch: true
@@ -99,3 +106,9 @@ data:
 {% if traefik_hub_token is defined %}
       hub: true
 {% endif %}
+{% if traefik_ondemand is defined %}
+      plugins:
+        traefik-ondemand-plugin:
+          moduleName: github.com/acouvreur/traefik-ondemand-plugin
+          version: v1.2.0
+{% endif %}