---

# set hostname
- name: "set hostname"
  ansible.builtin.hostname:
    name: "{{ set_hostname | default(inventory_hostname_short) }}"
    use: "{{ hostname_use_method }}"

# manage /etc/hosts
- name: "manage /etc/hosts file for hostname"
  ansible.builtin.lineinfile:
    path: "/etc/hosts"
    regexp: '^{{ ansible_facts["default_ipv4"].address }}\s+.*{{ inventory_hostname_short }}.*$'
    line: "{{ ansible_facts['default_ipv4'].address }} {{ inventory_hostname }} {{ inventory_hostname_short }}"
    backup: true
  tags: "hostfile"