Make sure that localhost references 127.0.0.1

roles/dnsmasq/tasks/main.yml

@@ -27,6 +27,18 @@
   with_items:
     - '^127\.0\.0\.1(\s+){{ inventory_hostname }}.*'
     - '^::1(\s+){{ inventory_hostname }}.*'
+    - '^::1(\s+)localhost.*'
+    - '^127.0.0.1(\s+)localhost.*'
+
+- name: localhost in hosts file
+  lineinfile:
+    dest: /etc/hosts
+    line: "{{ item }}"
+    state: present
+    backup: yes
+  with_items:
+    - '127.0.0.1 localhost localhost.localdomain'
+    - '::1 localhost6 localhost6.localdomain'
 
 - name: ensure dnsmasq.d directory exists
   file: