Add update ssh_known_hosts playbook

README

@@ -10,6 +10,7 @@ Ansible playbooks of the University of Waterloo Computer Science Club.
 If a playbook is not in this list, it is not guaranteed to work.
 - [x] test-playbook.yml
 - [x] gather-ssh-fingerprints.yml
+- [x] update-ssh_known_hosts.yml
 - [x] upgrade-ceo.yml
 - [x] install-software.yml
 

update-ssh_known_hosts.yml

@@ -1,9 +1,10 @@
----
-  - hosts: all
-    become: yes
-    become_method: sudo
-    tasks:
-       - name: copy ssh_known_hosts
-         copy:
-            src: ssh_known_hosts
-            dest: /etc/ssh/ssh_known_hosts
+- name: Update ssh_known_hosts
+  hosts: all
+  become: true
+
+  tasks:
+  - name: copy ssh_known_hosts
+    ansible.builtin.copy:
+      src: files/ssh_known_hosts
+      dest: /etc/ssh/ssh_known_hosts
+      mode: u=rw,g=r,o=r