Add systemd-resolved DNS for quick-resolving changed Arch-controlled domains

roles/common/files/resolved-arch.conf

+# Query authoritative namesevers directly when resolving
+# Arch Linux domains so we instantly know about Arch-specific changes.
+[Resolve]
+DNS=213.239.242.238       # ns1.first-ns.de
+DNS=2a01:4f8:0:a101::a:1  # ns1.first-ns.de
+DNS=213.133.105.6         # robotns2.second-ns.de
+DNS=2a01:4f8:d0a:2004::2  # robotns2.second-ns.de
+DNS=193.47.99.3           # robotns3.second-ns.com
+DNS=2001:67c:192c::add:a3 # robotns3.second-ns.com
+Domains=~archlinux.org ~pkgbuild.com

roles/common/handlers/main.yml

@@ -6,6 +6,12 @@
     state: restarted
     daemon_reload: yes
 
+- name: restart resolved
+  systemd:
+    name: systemd-resolved
+    state: restarted
+    daemon_reload: yes
+
 - name: restart journald
   systemd:
     name: systemd-journald

roles/common/tasks/main.yml

@@ -75,6 +75,14 @@
   service: name=systemd-networkd state=started enabled=yes
   when: configure_network
 
+- name: create additional resolved config directory
+  file: path=/etc/systemd/resolved.conf.d
+
+- name: configure additional resolved config for resolving Arch domains
+  copy: src=resolved-arch.conf dest=/etc/systemd/resolved.conf.d/resolved-arch.conf owner=root group=root mode=0644
+  notify:
+    - restart resolved
+
 - name: create additional network config directory
   file: path=/etc/systemd/network/10-dhcp-ethernet.network.d state=directory owner=root group=root mode=0755
   when: dhcp|default(False) and additional_addresses is defined