TEST: Auto modify inventory

inventory/hosts.ini

@@ -19,13 +19,11 @@ truenas ansible_host=10.0.0.200
 [lxc]
 gitea ansible_host=10.0.0.108
 zabbix-proxy ansible_host=10.0.0.110 
-pi-hole ansible_host=10.0.0.104
+
 ansible ansible_host=10.0.0.111
 automate ansible_host=10.0.0.112
-
 #localhost ansible_connection=local # for testing playbooks on the control node
 
-
 [pbs]
 proxmox-backup ansible_host=10.0.0.201
 
@@ -34,3 +32,6 @@ proxmox-backup ansible_host=10.0.0.201
 docker
 ubuntu_servers
 lxc
+
+[new]
+pi-hole ansible_host=10.0.0.104 ansible_user=root

playbooks/lxc_setup_ubuntu.yml

@@ -1,43 +1,41 @@
 ---
-- name: Secure and Configure a New LXC Container
-  hosts: 'lxc' # Hosts or group defined in your inventory
-  remote_user: root
+- name: 1. Secure and Configure a New LXC Container
+  hosts: 'new' # Target hosts in the [new] group
+  remote_user: root # Connect as root, as defined in the inventory for this group
+  gather_facts: no
+  vars:
+    target_user: mbuz
+    my_public_keys:
+      - "{{ lookup('file', '/home/mbuz/.ssh/id_ed25519.pub') }}"
   tasks:
-    - name: 1. Create user '{{ target_user }}'
+    - name: Create user '{{ target_user }}'
       ansible.builtin.user:
         name: '{{ target_user }}'
         shell: /bin/bash
-        groups: sudo # Add to sudo (for Debian/Ubuntu)
+        groups: sudo
         state: present
 
-    - name: 1.1. Allow '{{ target_user }}' to use sudo without a password
+    - name: Allow '{{ target_user }}' to use sudo without a password
       ansible.builtin.copy:
         dest: /etc/sudoers.d/90-{{ target_user }}-nopasswd
         content: '{{ target_user }} ALL=(ALL) NOPASSWD: ALL'
         mode: '0440'
         validate: /usr/sbin/visudo -cf %s
 
-    - name: 2. Set up authorized_keys for '{{ target_user }}'
+    - name: Set up authorized_keys for '{{ target_user }}'
       ansible.posix.authorized_key:
         user: '{{ target_user }}'
         key: "{{ item }}"
         state: present
         path: /home/{{ target_user }}/.ssh/authorized_keys
       loop: "{{ my_public_keys }}"
-      # ansible.posix.authorized_key will create an .ssh directory with the correct permissions.
 
-    - name: 3. Lock password for '{{ target_user }}'
+    - name: Lock password for '{{ target_user }}'
       ansible.builtin.user:
         name: '{{ target_user }}'
         password_lock: yes
 
-    - name: 4.0. Install software-properties-common
-      ansible.builtin.apt:
-        name: software-properties-common
-        state: present
-        update_cache: yes
-
-    - name: 4.1. Disallow root login over SSH
+    - name: Disallow root login over SSH
       ansible.builtin.lineinfile:
         path: /etc/ssh/sshd_config
         regexp: '^#?PermitRootLogin'
@@ -45,7 +43,7 @@
         validate: /usr/sbin/sshd -t -f %s
       notify: restart sshd
 
-    - name: 4.2. Disallow password authentication
+    - name: Disallow password authentication
       ansible.builtin.lineinfile:
         path: /etc/ssh/sshd_config
         regexp: '^#?PasswordAuthentication'
@@ -54,10 +52,30 @@
       notify: restart sshd
 
   handlers:
-    # This block will only run if at least one task sends a notification.
-    # This prevents unnecessary service restarts.
-    - name: 5. Restart sshd server
+    - name: Restart sshd server
       listen: "restart sshd"
       ansible.builtin.service:
         name: sshd
         state: restarted
+
+# --- Move host from NEW to LXC group ---
+- name: 2. Graduate Host from [new] to [lxc] in Inventory
+  hosts: localhost
+  connection: local
+  gather_facts: no
+  tasks:
+    - name: Remove host from the [new] group
+      ansible.builtin.lineinfile:
+        path: /opt/ansible/inventory/hosts.ini
+        regexp: "^{{ item }}\\s" # Match the start of the line with the hostname
+        state: absent
+      loop: "{{ groups['new'] }}" # Loop over all hosts in the 'new' group
+
+    - name: Add host to the [lxc] group
+      ansible.builtin.blockinfile:
+        path: /opt/ansible/inventory/hosts.ini
+        block: |
+          {{ item }} ansible_host={{ hostvars[item]['ansible_host'] }}
+        insertafter: "[lxc]"
+        marker: "# {mark} ANSIBLE MANAGED BLOCK FOR LXC"
+      loop: "{{ groups['new'] }}" # Loop over all hosts in the 'new' group