manifests: ensure ip6tables kernel module can load

Fixes: #55

Signed-off-by: Lucas Servén Marín <lserven@gmail.com>

manifests/kilo-k3s-flannel.yaml

@@ -85,6 +85,12 @@ spec:
         - name: kubeconfig
           mountPath: /etc/kubernetes/kubeconfig
           readOnly: true
+        - name: lib-modules
+          mountPath: /lib/modules
+          readOnly: true
+        - name: xtables-lock
+          mountPath: /run/xtables.lock
+          readOnly: false
       tolerations:
       - effect: NoSchedule
         operator: Exists
@@ -97,3 +103,10 @@ spec:
       - name: kubeconfig
         hostPath: 
           path: /etc/rancher/k3s/k3s.yaml
+      - name: lib-modules
+        hostPath:
+          path: /lib/modules
+      - name: xtables-lock
+        hostPath:
+          path: /run/xtables.lock
+          type: FileOrCreate