added DNS resolver option powerdns-recursor

roles/nameserver/tasks/configure_powerdns_recursor_snmpd.yml

@@ -0,0 +1,27 @@
+- name: "Nameserver: powerdns-recursor | snmpd | get script"
+  get_url:
+    url: "https://github.com/librenms/librenms-agent/raw/master/snmp/powerdns-recursor"
+    dest: "/etc/snmp/powerdns-recursor"
+    mode: "0755"
+    owner: "root"
+    group: "root"
+
+- name: "Nameserver: powerdns-recursor | snmpd | remove unbound script"
+  file:
+    path: "/etc/snmp/unbound"
+    state: absent
+
+- name: "Nameserver: powerdns-recursor | snmpd | configure extend"
+  lineinfile:
+    path: "{{ snmpd_conf }}"
+    state: present
+    line: "extend powerdns-recursor {{ sudo }} /etc/snmp/powerdns-recursor"
+    insertafter: "# SECTION: Extends"
+  notify: restart_snmpd
+
+- name: "Nameserver: powerdns-recursor | snmpd | remove unbound extend"
+  lineinfile:
+    path: "{{ snmpd_conf }}"
+    state: absent # not required. choices: absent;present. Whether the line should be there or not.
+    line: "extend unbound {{ sudo }} /etc/snmp/unbound"
+  notify: restart_snmpd