Try to get working

cluster/core/cert-manager/letsencrypt-prod.yaml

@@ -10,8 +10,11 @@ spec:
     privateKeySecretRef:
       name: letsencrypt-production
     solvers:
-      - dns01:
-          cloudflare:
-            apiTokenSecretRef:
-              name: cloudflare-api-token-secret
-              key: api-token
+      - http01:
+          ingress:
+            class: traefik
+#      - dns01:
+#          cloudflare:
+#            apiTokenSecretRef:
+#              name: cloudflare-api-token-secret
+#              key: api-token

cluster/core/networking/traefik/helm-release.yaml

@@ -86,7 +86,7 @@ spec:
           cert-manager.io/cluster-issuer: "letsencrypt-production"
           traefik.ingress.kubernetes.io/router.middlewares: "traefik-authentik@kubernetescrd"
         entryPoints: [ "websecure" ]
-        matchRule: Host(`k3st.${SECRET_DOMAIN}`) && (PathPrefix(`/dashboard`) || PathPrefix(`/api`))
+        matchRule: Host(`traefik.${SECRET_DOMAIN}`) && (PathPrefix(`/dashboard`) || PathPrefix(`/api`))
 
     # Set Traefik as your default Ingress Controller, according to Kubernetes 1.19+ changes.
     ingressClass: