Simple admin user setup on a clean buntu machine

ansible/inventory.yaml

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+nigel:
+  hosts:
+    nigel.local:

ansible/local-setup-admin-user.yaml

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+# This playbook is meant to be a oneshot to be ran manually on the dev box
+# The rest of the role stuff is meant to be ran as the admin user that
+# this playbook creates for us
+---
+- hosts: nigel.local
+  remote_user: nigel
+  vars:
+    admin:
+      username: nigel
+  tasks:
+    - name: Copy the nigel admin key
+      ansible.builtin.authorized_key:
+        user: "{{ admin.username }}"
+        state: present
+        key: "{{ lookup('file', '~/.ssh/nigel/admin.pub') }}"
+    - name: Prevent password based logins
+      become: true
+      ansible.builtin.lineinfile:
+        dest: /etc/ssh/sshd_config
+        line: PasswordAuthentication no
+        state: present
+        backup: true
+    - name: Restart SSH Daemon
+      become: true
+      ansible.builtin.service:
+        name: ssh
+        state: restarted