feat(dns): add dns options

defaults/main.yaml

@@ -21,6 +21,7 @@ debian_repo_url_update: "http://deb.debian.org/debian"
 dns_search: "example.internal"
 dns_servers:
   - "192.168.10.1"
+dns_options: []
 
 # firewall
 firewall_enable: true

readme.md

@@ -22,6 +22,7 @@ Manage core Operating System components and system defaults.
 |----------------|----------|--------------------------|--------------------------------|
 | `dns_servers`  | No       | `["192.168.10.1"]`       | List of DNS nameservers to use |
 | `dns_search`   | No       | `["example.internal"]`   | List of search domains to use  |
+| `dns_options`  | No       | `[]`                     | List of resolver options       |
 
 ### NTP Configuration
 

templates/dns/resolve.conf.j2

@@ -4,3 +4,6 @@ nameserver {{ dns_server }}
 {% if "example" not in dns_search -%}
 search {{ dns_search }}
 {% endif %}
+{% if dns_options -%}
+options {{ dns_options | join(' ') }}
+{% endif %}