free the port 53 for nginx

dns.yml

@@ -5,4 +5,5 @@
 - hosts: proxy
   roles:
    - install_nginx
+   - configure_resolved
    - reverse_proxy_stream

group_vars/all/vars.yml

@@ -1,3 +1,4 @@
 ---
 # Use python 3
 ansible_python_interpreter: /usr/bin/python3
+dns_resolve_server: 1.1.1.1

roles/configure_resolved/handlers/main.yml

@@ -0,0 +1,5 @@
+---
+- name: Reload systemd-resolve
+  systemd:
+    name: systemd-resolved
+    state: restart

roles/configure_resolved/tasks/main.yml

@@ -0,0 +1,23 @@
+---
+- name: Change the DNS server
+  lineinfile:
+    path: /etc/systemd/resolved.conf
+    insertafter: '[Resolve]'
+    regexp: '^#?DNS='
+    line: "DNS={{ dns_resolve_server }}"
+  notify: Reload systemd-resolve
+
+- name: Remove the stub listener
+  lineinfile:
+    path: /etc/systemd/resolved.conf
+    insertafter: '[Resolve]'
+    regexp: '^#?DNSStubListener='
+    line: "DNSStubListener=no"
+  notify: Reload systemd-resolve
+
+- name: Link resolve conf
+  file:
+    src: /run/systemd/resolve/resolv.conf 
+    dest: /etc/resolv.conf
+    state: link
+    force: yes