Update flannel use install-cni-plugin to fit upstream (#8714)

* Update flannel use install-cni-plugin to fit upstream

* Replace flannel cni repo

* Remove download flannel binary

roles/network_plugin/flannel/tasks/main.yml

@@ -1,16 +1,4 @@
 ---
-- name: runc | Download flannel binary
-  include_tasks: "../../../download/tasks/download_file.yml"
-  vars:
-    download: "{{ download_defaults | combine(downloads.flannel_cni) }}"
-
-- name: Copy flannel binary from download dir
-  copy:
-    src: "{{ downloads.flannel_cni.dest }}"
-    dest: "/opt/cni/bin/flannel"
-    mode: 0755
-    remote_src: true
-
 - name: Flannel | Create Flannel manifests
   template:
     src: "{{ item.file }}.j2"

roles/network_plugin/flannel/templates/cni-flannel.yml.j2

@@ -108,6 +108,17 @@ spec:
                     values:
                       - {{ arch }}
       initContainers:
+      - name: install-cni-plugin
+        image: {{ flannel_init_image_repo }}:{{ flannel_init_image_tag }}
+        command:
+        - cp
+        args:
+        - -f
+        - /flannel
+        - /opt/cni/bin/flannel
+        volumeMounts:
+        - name: cni-plugin
+          mountPath: /opt/cni/bin
       - name: install-cni
         image: {{ flannel_image_repo }}:{{ flannel_image_tag | regex_replace(image_arch,'') }}{{ arch }}
         command:
@@ -135,7 +146,7 @@ spec:
         - name: flannel-cfg
           configMap:
             name: kube-flannel-cfg
-        - name: host-cni-bin
+        - name: cni-plugin
           hostPath:
             path: /opt/cni/bin
   updateStrategy: