c12s-kubespray/roles/network_plugin/flannel/tasks/pre-upgrade.yml

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---
- name: Flannel pre-upgrade | Purge legacy flannel systemd unit file
file:
path: "/etc/systemd/system/docker.service.d/flannel-options.conf"
state: absent
notify:
- Flannel | delete default docker bridge
- name: Flannel pre-upgrade | Purge legacy Flannel static pod manifest
file:
path: "{{ kube_manifest_dir }}/flannel-pod.manifest"
state: absent
notify:
- Flannel | delete flannel interface
- name: Flannel pre-upgrade | Remove Flannel's certificate directory not required by CNI
file:
dest: "{{ flannel_cert_dir }}"
state: absent