---

- name: "set {{ inventory_hostname }} as hostname"
  become: true
  hostname:
    name: "{{ inventory_hostname }}"

- name: Add hostname to /etc/hosts
  become: true
  lineinfile:
    dest: /etc/hosts
    regexp: "^127.0.1.1"
    line: "127.0.1.1 {{ inventory_hostname }} {{ ansible_hostname }}"
    state: present

- name: Set /etc/mailname
  become: true
  copy:
    dest: "/etc/mailname"
    content: "{{ inventory_hostname }}"