Refactor inventory into OS groups and update playbooks accordingly

Group hosts by OS (ubuntu/rocky) in inventory, refactor playbooks to
use group-targeted plays instead of ansible_os_family conditionals,
add bot host, and add Docker volume backup playbook via rsync to storage.

playbooks/time-region.yml

@@ -1,120 +1,115 @@
 ---
-- name: Configure timezone and NTP (LXC-Aware)
+- name: Configure timezone on all hosts
   hosts: all
-  become: yes
+  become: true
+  gather_facts: true
 
   vars:
     timezone_region: "America/New_York"
-    ntp_server: "time.google.com"
 
   tasks:
-  # ----------------------------------------------------------
-  # SETUP FACTS
-  # ----------------------------------------------------------
-    - name: Ensure virtualization facts are gathered
-      ansible.builtin.setup:
-        gather_subset:
-          - virtual
-
-  # ----------------------------------------------------------
-  # TIMEZONE (Required for ALL systems, LXC and VMs)
-  # ----------------------------------------------------------
     - name: Copy timezone file
       ansible.builtin.copy:
         src: "/usr/share/zoneinfo/{{ timezone_region }}"
         dest: /etc/localtime
-        remote_src: yes
-      register: tz_copy
+        remote_src: true
 
     - name: Write /etc/timezone
       ansible.builtin.copy:
         dest: /etc/timezone
         content: "{{ timezone_region }}\n"
-      register: tz_write
 
-  # ----------------------------------------------------------
-  # LXC CONTAINER HANDLING (Disable NTP)
-  # ----------------------------------------------------------
-    - name: Stop and mask timesyncd on LXC (Ubuntu/Debian)
+- name: Disable NTP on Ubuntu LXC containers
+  hosts: ubuntu
+  become: true
+
+  tasks:
+    - name: Stop and mask timesyncd on LXC
       ansible.builtin.systemd:
         name: systemd-timesyncd
         state: stopped
-        enabled: no
-        masked: yes
-      when: 
-        - ansible_os_family == "Debian"
-        - ansible_virtualization_type == "lxc"
+        enabled: false
+        masked: true
+      when: ansible_virtualization_type == "lxc"
 
-    - name: Stop and mask chronyd on LXC (RHEL-based)
+- name: Disable NTP on Rocky Linux LXC containers
+  hosts: rocky
+  become: true
+
+  tasks:
+    - name: Stop and mask chronyd on LXC
       ansible.builtin.systemd:
         name: chronyd
         state: stopped
-        enabled: no
-        masked: yes
-      when: 
-        - ansible_os_family == "RedHat"
-        - ansible_virtualization_type == "lxc"
+        enabled: false
+        masked: true
+      when: ansible_virtualization_type == "lxc"
 
-  # ----------------------------------------------------------
-  # FULL VM / HARDWARE HANDLING (Configure NTP)
-  # ----------------------------------------------------------
-    - name: Configure timesyncd on VMs (Ubuntu/Debian)
+- name: Configure NTP on Ubuntu VMs
+  hosts: ubuntu
+  become: true
+
+  vars:
+    ntp_server: "time.google.com"
+
+  tasks:
+    - name: Configure timesyncd
       ansible.builtin.lineinfile:
         path: /etc/systemd/timesyncd.conf
         regexp: '^#?NTP='
         line: "NTP={{ ntp_server }}"
         state: present
-      when: 
-        - ansible_os_family == "Debian"
-        - ansible_virtualization_type != "lxc"
+      when: ansible_virtualization_type != "lxc"
       notify: Restart timesyncd
 
-    - name: Disable default chrony pools on VMs (RHEL-based)
-      ansible.builtin.replace:
-        path: /etc/chrony.conf
-        regexp: '^(pool|server) .*'
-        replace: '# \1 removed by Ansible'
-      when: 
-        - ansible_os_family == "RedHat"
-        - ansible_virtualization_type != "lxc"
-
-    - name: Configure chrony on VMs (RHEL-based)
-      ansible.builtin.lineinfile:
-        path: /etc/chrony.conf
-        line: "server {{ ntp_server }} iburst"
-        insertafter: EOF
-        state: present
-      when: 
-        - ansible_os_family == "RedHat"
-        - ansible_virtualization_type != "lxc"
-      notify: Restart chronyd
-
-  # ----------------------------------------------------------
-  # FINAL SUMMARY
-  # ----------------------------------------------------------
-    - name: Verify current system time
-      ansible.builtin.command: date
-      register: check_time
-      changed_when: false
-
-    - name: Final summary
-      ansible.builtin.debug:
-        msg: 
-          - "Setup complete on {{ inventory_hostname }} (Environment: {{ ansible_virtualization_type | default('unknown') }})"
-          - "System Time: {{ check_time.stdout }}"
-
-  # ----------------------------------------------------------
-  # HANDLERS (Only triggers for VMs)
-  # ----------------------------------------------------------
   handlers:
     - name: Restart timesyncd
       ansible.builtin.systemd:
         name: systemd-timesyncd
         state: restarted
-        enabled: yes
+        enabled: true
 
+- name: Configure NTP on Rocky Linux VMs
+  hosts: rocky
+  become: true
+
+  vars:
+    ntp_server: "time.google.com"
+
+  tasks:
+    - name: Disable default chrony pools
+      ansible.builtin.replace:
+        path: /etc/chrony.conf
+        regexp: '^(pool|server) .*'
+        replace: '# \1 removed by Ansible'
+      when: ansible_virtualization_type != "lxc"
+
+    - name: Configure chrony NTP server
+      ansible.builtin.lineinfile:
+        path: /etc/chrony.conf
+        line: "server {{ ntp_server }} iburst"
+        insertafter: EOF
+        state: present
+      when: ansible_virtualization_type != "lxc"
+      notify: Restart chronyd
+
+  handlers:
     - name: Restart chronyd
       ansible.builtin.systemd:
         name: chronyd
         state: restarted
-        enabled: yes
+        enabled: true
+
+- name: Verify time configuration
+  hosts: all
+  become: true
+
+  tasks:
+    - name: Check current system time
+      ansible.builtin.command: date
+      register: check_time
+      changed_when: false
+
+    - name: Summary
+      ansible.builtin.debug:
+        msg: "{{ inventory_hostname }} ({{ ansible_virtualization_type | default('unknown') }}) - {{ check_time.stdout }}"