Dynamic dns registration support.

metadata/service/minion/dns_register.yml

+applications:
+- salt.minion.dns_register

salt/map.jinja

 Arch:
   pkgs:
   - salt
+  ddns_pkgs:
+  - python-dnspython
 Debian:
   pkgs:
   - salt-master
+  ddns_pkgs:
+  - python-dnspython
 Gentoo:
   pkgs:
   - app-admin/salt
 RedHat:
   pkgs:
   - salt-master
+  ddns_pkgs:
+  - python-dnspython
 {%- endload %}
 
 {%- if pillar.salt.master is defined %}

salt/master/ddns_registrator.sls

+{%- from "salt/map.jinja" import master with context %}
+{%- if master.get('ddns:server', False) %}
+
+ddns_registrator_packages:
+  pkg.installed:
+  - names: {{ master:ddns_pkgs }}
+
+ddns_keys_file:
+  file.managed:
+  - name: /etc/salt/ddns.keyring
+  - source: salt://salt/files/ddns.keys
+  - template: jinja
+  - mode: 600
+
+{%- endif %}

salt/master/init.sls

 {%- if pillar.salt.master.reactor is defined %}
 - salt.master.reactor
 {%- endif %}
+{%- if pillar.salt.master.ddns is defined %}
+- salt.master.ddns_registrator
+{%- endif %}
 - salt.master.env
 - salt.master.pillar
 - salt.master.minion

salt/minion/dns_register.sls

+send_dns_register_event:
+  event.send:
+  - name: dns/node/register
+  - net_info: {{ pillar.linux.network.get('host', {}) }}

salt/reactor/node_ddns_register.sls

+{%- for rec_name, record in data.data.get('net_info', {}).iteritems() %}
+{%- for name in record.get('names', []) if '.' in name %}
+{%- set hostname, domain = name.split('.',1) %}
+
+ddns_node_register_{{ name }}_{{ loop.index }}:
+  runner.ddns.add_host:
+  - args:
+    - zone: {{ domain }}
+    - name: {{ hostname }}
+    - ttl: 300
+    - ip: {{ record.get('address', '127.0.0.127') }}
+    - keyname: salt-updates
+    - keyfile: /etc/salt/dns.keyring
+    - nameserver: {{ salt['grains.get']('ddns_server', '127.0.0.1') }}
+    - keyalgorithm: 'HMAC-MD5.SIG-ALG.REG.INT'
+{%- endfor %}
+{%- endfor %}