ansible_samba_tasks/tasks/hostname.yml

- hosts: localhost
  gather_facts: yes
  tasks:
    - name: Show the local hostname
      ansible.builtin.debug:
        msg: "The hostname of this machine is {{ ansible_hostname }}"

    - name: Display Host FQDN
      ansible.builtin.debug:
        msg: "ansible_fqdn: {{ ansible_fqdn }}"

    - name: Display OS Family
      ansible.builtin.debug:
        msg: "ansible_os_family: {{ ansible_os_family }}"

    - name: Display Architecture
      ansible.builtin.debug:
        msg: "ansible_architecture: {{ ansible_architecture }}"

    - name: Display Default IPv4 Information
      ansible.builtin.debug:
        msg: "ansible_default_ipv4: {{ ansible_default_ipv4 }}"

    - name: Display All Interfaces
      ansible.builtin.debug:
        msg: "ansible_interfaces: {{ ansible_interfaces }}"

    - name: Display Memory Total (MB)
      ansible.builtin.debug:
        msg: "ansible_memtotal_mb: {{ ansible_memtotal_mb }}"

    - name: Display Processor Information
      ansible.builtin.debug:
        msg: "ansible_processor: {{ ansible_processor }}"

    - name: Display Mounted Filesystems
      ansible.builtin.debug:
        msg: "ansible_mounts: {{ ansible_mounts }}"

    # The fact ansible_<interface_name> is dynamic, so we iterate over the known interfaces
    - name: Display details for each specific interface (ansible_<interface_name>)
      ansible.builtin.debug:
        var: hostvars['localhost']['ansible_' + item]
      loop: "{{ ansible_interfaces }}"
      when: hostvars['localhost']['ansible_' + item] is defined and item not in ['lo'] # Exclude 'lo' (loopback) for cleaner output

# ----------------------------------------------------------------------
# 1. ACTUAL USER INFORMATION (Magic Variables and Facts)
# ----------------------------------------------------------------------
    - name: Display current connection and effective user details
      ansible.builtin.debug:
        msg: |
          Current SSH User (ansible_user): {{ ansible_user }}
          Effective Task User ID (ansible_user_id): {{ ansible_user_id }}
          Effective Task User Shell (ansible_user_shell): {{ ansible_user_shell }}
          Effective Task User Home Dir (ansible_user_dir): {{ ansible_user_dir }}
          
# ----------------------------------------------------------------------
# 2. ALL USERS ON THE SYSTEM (Using getent module)
# ----------------------------------------------------------------------
    - name: Gather all users from the /etc/passwd database
      ansible.builtin.getent:
        database: passwd
        # The result is registered as a fact named 'getent_passwd'

    - name: Display a list of all usernames on the system
      ansible.builtin.debug:
        msg: "All Users on System: {{ getent_passwd | dict2items | map(attribute='key') | list }}"