Add playbooks: become_user_cfg & shutdown

"reset_connection" tip came from:
https://www.jeffgeerling.com/blog/2021/allowing-ansible-playbooks-work-new-user-groups-on-first-run

 Remove sudo passwd less add root auth w/ key

Root is accessible from:
 * SSH by key
 * sudo by password

TODO: if keychain is waiting for passphrase, ansible hang
https://www.funtoo.org/Keychain#Quick_Setup

Makefile

@@ -6,7 +6,7 @@ clean:
 	find . -type f -name "*.orig" -delete
 
 open_all:
-	${EDITOR} .gitignore inventory Makefile host_info.yml README.md whoami.yml
+	${EDITOR} .gitignore become_user_cfg.yml host_info.yml inventory Makefile README.md shutdown.yml whoami.yml
 
 inventory_generation:
 	cp inventory.sample inventory && ${EDITOR} inventory

README.md

@@ -13,10 +13,12 @@ Suitable for server and workstation.
 ✨ Features
 -----------
 
-|   playbook                        |   return                                          |
-|-----------------------------------|---------------------------------------------------|
-| [`host_info.yml`](host_info.yml)  |   distribution full name & version                |
-| [`whoami.yml`](whoami.yml)        |   `ansible_user` & `become_user` (`sudo` method)  |
+|   playbook                                    |   purpose                                                             |
+|   :--------------------------------------:    |   :--------------------------------------------------------------:    |
+| [`become_user_cfg.yml`](become_user_cfg.yml)  |   Set `sudo` without password for `become_user` access                |
+| [`host_info.yml`](host_info.yml)              |   Return message with distribution full name & version                |
+| [`shutdown.yml`](shutdown.yml)                |   Shutdown target in 10 min                                           |
+| [`whoami.yml`](whoami.yml)                    |   Return message with `ansible_user` & `become_user` (`sudo` method)  |
 
 
 🚀 Quickstart

become_user_cfg.yml

+---
+- hosts: "{{ host_list }}"
+  become: yes
+  become_method: sudo
+  remote_user: "{{ my_user }}"
+
+  tasks:
+    - name: SUDO | Group sudo presence
+      ansible.builtin.group:
+        name: sudo
+        state: present
+
+    - name: SUDO | Group wheel absence
+      ansible.builtin.group:
+        name: wheel
+        state: absent
+
+    - name: SUDO | User presence (with groups)
+      ansible.builtin.user:
+        name: "{{ my_user }}"
+        state: present
+        groups: sudo
+        append: true
+
+    - name: SUDO | Reset ansible connection to apply group update
+      meta: reset_connection
+
+    - name: "SSH | Local public key is present for {{ my_user }}"
+      ansible.builtin.authorized_key:
+        comment: "Managed by Ansible from GitLab @free_zed"
+        key: https://gitlab.com/free_zed.keys
+        state: present
+        user: "{{ my_user }}"
+
+    - name: SSH | Disallow SSH password authentication for root
+      copy:
+        src: sshd_config
+        dest: /etc/ssh/sshd_config
+
+    - name: "SSH | Local public key is present for root"
+      ansible.builtin.authorized_key:
+        comment: "Managed by Ansible from GitLab @free_zed"
+        key: https://gitlab.com/free_zed.keys
+        state: present
+        user: root
+
+    - name: SSH | Remove no password directive
+      ansible.builtin.lineinfile:
+        path: /etc/sudoers
+        state: absent
+        regexp: 'NOPASSWD'
+        validate: '/usr/sbin/visudo -cf %s'

shutdown.yml

+---
+- hosts: "{{ host_list }}"
+  remote_user: root
+
+  tasks:
+    - name: Shutdown the host in 10 min
+      community.general.shutdown:
+        delay: 600