Add image_arch in flannel image tag (#7560)

* Add image_arch variable when download flannel image

* Fix flannel image tag typo with image arch

roles/download/defaults/main.yml

@@ -401,7 +401,7 @@ kube_proxy_image_repo: "{{ kube_image_repo }}/kube-proxy"
 etcd_image_repo: "{{ quay_image_repo }}/coreos/etcd"
 etcd_image_tag: "{{ etcd_version }}{%- if image_arch != 'amd64' -%}-{{ image_arch }}{%- endif -%}"
 flannel_image_repo: "{{ quay_image_repo }}/coreos/flannel"
-flannel_image_tag: "{{ flannel_version }}"
+flannel_image_tag: "{{ flannel_version }}-{{ image_arch }}"
 calico_node_image_repo: "{{ quay_image_repo }}/calico/node"
 calico_node_image_tag: "{{ calico_version }}{%- if image_arch != 'amd64' -%}-{{ image_arch }}{%- endif -%}"
 calico_cni_image_repo: "{{ quay_image_repo }}/calico/cni"

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

@@ -66,7 +66,7 @@ spec:
       serviceAccountName: flannel
       containers:
       - name: kube-flannel
-        image: {{ flannel_image_repo }}:{{ flannel_image_tag }}-{{ arch }}
+        image: {{ flannel_image_repo }}:{{ flannel_image_tag | regex_replace(image_arch,'') }}{{ arch }}
         imagePullPolicy: {{ k8s_image_pull_policy }}
         resources:
           limits:
@@ -109,7 +109,7 @@ spec:
                       - {{ arch }}
       initContainers:
       - name: install-cni
-        image: {{ flannel_image_repo }}:{{ flannel_image_tag }}-{{ arch }}
+        image: {{ flannel_image_repo }}:{{ flannel_image_tag | regex_replace(image_arch,'') }}{{ arch }}
         command:
         - cp
         args: