Remove the archived debian apt repository (#11088)

Signed-off-by: Kay Yan <[email protected]>

roles/container-engine/docker/tasks/main.yml

@@ -67,6 +67,17 @@
   environment: "{{ proxy_env }}"
   when: ansible_pkg_mgr == 'apt'
 
+# ref to https://github.com/kubernetes-sigs/kubespray/issues/11086
+- name: Remove the archived debian apt repository
+  lineinfile:
+    path: /etc/apt/sources.list
+    regexp: 'buster-backports'
+    state: absent
+    backup: yes
+  when:
+    - ansible_os_family == 'Debian'
+    - ansible_distribution_release == "buster"
+
 - name: Ensure docker-ce repository is enabled
   apt_repository:
     repo: "{{ item }}"