Sudoers config and hostname config working

roles/hostname/tasks/main.yml

@@ -0,0 +1,23 @@
+# code: language=ansible
+
+- name: Add IPv4 address to /etc/hosts
+  ansible.builtin.lineinfile:
+    path: /etc/hosts
+    line: "{{ ipv4_address }} {{ inventory_hostname }} {{ inventory_hostname_short }}"
+
+- name: Ensure IPv4 loopback exists in /etc/hosts
+  ansible.builtin.lineinfile:
+    path: /etc/hosts
+    line: "127.0.1.1 {{ inventory_hostname }} {{ inventory_hostname_short }}"
+
+- name: Add IPv6 address to /etc/hosts
+  when:
+    - not (ipv4_only | default(false))
+  ansible.builtin.lineinfile:
+    path: /etc/hosts
+    line: "{{ ipv6_address }} {{ inventory_hostname }} {{ inventory_hostname_short }}"
+
+- name: Set hostname
+  ansible.builtin.hostname:
+    name: "{{ inventory_hostname }}"
+    use: systemd

roles/hostname/vars/main.yml

@@ -0,0 +1 @@
+# code: language=ansible