bundles/dhcpd add initial items, metadata and template

bundles/dhcpd/files/dhcpd.conf

@@ -0,0 +1,26 @@
+#dhcpd.conf
+
+ddns-update-style none;
+
+authoritative;
+
+% for identfier, subnet in dhcp_config.get('subnets', {}).items():
+subnet ${subnet['subnet']} netmask ${subnet['netmask']} {
+% if subnet.get('range_lower', None) and subnet.get('range_higher', None):
+    range ${subnet['range_lower']} ${subnet['range_higher']};
+% endif
+    interface ${subnet['interface']};
+    default-lease-time ${subnet.get('default-lease-time', 600)};
+    max-lease-time ${subnet.get('max-lease-time', 3600)};
+% for option, value in sorted(subnet.get('options', {}).items()):
+        option ${option} ${value};
+% endfor
+}
+% endfor
+
+% for identifier, allocation in dhcp_config.get('fixed_allocations', {}).items():
+host ${identifier} {
+    hardware ethernet ${allocation['mac']};
+    fixed-address ${allocation['ipv4']};
+}
+% endfor

bundles/dhcpd/items.py

@@ -0,0 +1,14 @@
+files = {
+    '/etc/dhcp/dhcpd.conf': {
+        'content_type': 'mako',
+        'context': {
+            'dhcp_config': node.metadata.get('dhcpd'),
+        },
+        'needs': {
+            'pkg_apt:'
+        },
+        'triggers': {
+            'svc_systemd:isc-dhcp-server:restart',
+        },
+    },
+}

bundles/dhcpd/metadata.py

@@ -0,0 +1,25 @@
+defaults = {
+    'apt': {
+        'packages': {
+            'isc-dhcpd-server': {},
+        },
+    },
+}
+
+
+@metadata_reactor
+def get_static_allocations(metadata):
+    allocations = {}
+    for rnode in repo.nodes_in_group('home'):
+        for identifier, interface in rnode.metadata.get('interfaces', {}).items():
+            if interface.get('dhcp', False):
+                allocations[rnode.name] = {
+                        'ipv4':  sorted(interface['ips'])[0],
+                        'mac': interface['mac'],
+                }
+    return {
+        'dhcpd': {
+            'fixed_allocations': allocations,
+        }
+    }
+