fix flannel v0.19.2

roles/flannel/tasks/main.yml

@@ -1,8 +1,7 @@
-- name: 下载flannel cni plugins
+- name: 下载cni plugins
   copy: src={{ base_dir }}/bin/{{ item }} dest={{ bin_dir }}/{{ item }} mode=0755
   with_items:
   - bridge
-  - flannel
   - host-local
   - loopback
   - portmap

roles/flannel/templates/kube-flannel.yaml.j2

@@ -191,3 +191,7 @@ spec:
       - name: flannel-cfg
         configMap:
           name: kube-flannel-cfg
+      - name: xtables-lock
+        hostPath:
+          path: /run/xtables.lock
+          type: FileOrCreate