roles/common: Store ssh public key of root locally

roles/common/tasks/main.yml

@@ -19,3 +19,12 @@
     generate_ssh_key: yes
     ssh_key_type: ed25519
     ssh_key_comment: "root@{{ ansible_fqdn }}"
+  register: root_user
+
+- name: Store ssh public key local
+  local_action:
+    module: copy
+    content: "{{ root_user.ssh_public_key }}\n"
+    dest: "public_keys/ssh/root@{{ ansible_fqdn }}"
+  vars:
+    ansible_become: no