Add resolv.conf customization

group_vars/default/base.yml

@@ -9,6 +9,13 @@ timezone_location: Canada/Eastern
 # Cluster domain for node FQDNs
 local_domain: upstream.local
 
+# DNS recursive servers and search domains for nodes
+recursive_dns_servers:
+  - 8.8.8.8
+  - 8.8.4.4
+recursive_dns_search_domains:
+  - "{{ local_domain }}"
+
 # Cluster hardware model, used in pvc_user_configuration and grub_configuration below
 cluster_hardware: default
 

roles/base/defaults/main.yml

@@ -6,6 +6,12 @@ debian_pvc_repository: https://repo.parallelvirtualcluster.org/debian
 debian_pvc_signing_key_path: https://repo.parallelvirtualcluster.org/debian/bonifacelabs_signing_key.pub
 debian_pvc_signing_key_id: 83D07192314835D4
 
+recursive_dns_servers:
+  - 8.8.8.8
+  - 8.8.4.4
+recursive_dns_search_domains:
+  - "{{ local_domain }}"
+
 grub_cmdline: "systemd.unified_cgroup_hierarchy=0 console=tty0 console=ttyS{{ grub.serial_console[cluster_hardware].console }},115200 plymouth.ignore-serial-consoles splash"
 grub_serial: "serial --unit={{ grub.serial_console[cluster_hardware].console }} --speed=115200"
 

roles/base/templates/etc/resolv.conf.j2

@@ -2,6 +2,10 @@
 # {{ ansible_managed }}
 
 domain {{ local_domain }}
+{% if recursive_dns_search_domains is defined %}
+search {{ recursive_dns_search_domains | join (' ') }}
+{% endif %}
 options timeout:1 attempts:3 rotate
-nameserver 8.8.8.8
+{% for server in recursive_dns_servers %}
-nameserver 8.8.4.4
+nameserver {{ server }}
+{% endfor %}