add ironic support:

 * Add new network 'ironic'
 * Add new role 'ironic_slave'. This VM looks like
   current 'slave' node, but it is connected ONLY
   to "ironic" network.
 * fix Node.interface_by_name method. Rename it to
   interface_by_network_name

Partially Implements: blueprint integrate-ironic-to-test-tools

Change-Id: Idd9ebca53c2cfd0df088c7d516f6285ad58fe7db

devops/models/environment.py

@@ -215,6 +215,12 @@ def describe_environment(cls, boot_from='cdrom'):
                 ]
 
             environment.describe_empty_node(name, networks_to_describe)
+        for name in environment.node_roles.ironic_names:
+            ironic_net = []
+            for net in networks:
+                if net.name == 'ironic':
+                    ironic_net.append(net)
+            environment.describe_empty_node(name, ironic_net)
         return environment
 
     def create_networks(self, name):
@@ -251,6 +257,10 @@ def node_roles(self):
             admin_names=['admin'],
             other_names=[
                 'slave-%02d' % x for x in range(1, settings.NODES_COUNT)
+            ],
+            ironic_names=[
+                'ironic-slave-%02d' % x for x in range(
+                    1, settings.IRONIC_NODES_COUNT + 1)
             ]
         )
 
@@ -365,9 +375,11 @@ def get_ssh_to_remote_by_key(self, ip, keyfile):
 class NodeRoles(object):
     def __init__(self,
                  admin_names=None,
-                 other_names=None):
+                 other_names=None,
+                 ironic_names=None):
         self.admin_names = admin_names or []
         self.other_names = other_names or []
+        self.ironic_names = ironic_names or []
 
 
 class Nodes(object):
@@ -380,8 +392,12 @@ def __init__(self, environment, node_roles):
             list(environment.get_nodes(name__in=node_roles.other_names)),
             key=lambda node: node.name
         )
+        self.ironics = sorted(
+            list(environment.get_nodes(name__in=node_roles.ironic_names)),
+            key=lambda node: node.name
+        )
         self.slaves = self.others
-        self.all = self.slaves + self.admins
+        self.all = self.slaves + self.admins + self.ironics
         self.admin = self.admins[0]
 
     def __iter__(self):

devops/models/node.py

@@ -72,8 +72,9 @@ def interfaces(self):
     def vnc_password(self):
         return settings.VNC_PASSWORD
 
-    def interface_by_name(self, name):
-        self.interfaces.filter(name=name)
+    def interface_by_network_name(self, network_name):
+        return self.interface_set.filter(
+            network__name=network_name)
 
     def get_ip_address_by_network_name(self, name, interface=None):
         interface = interface or self.interface_set.filter(

devops/settings.py

@@ -179,6 +179,7 @@
 }
 
 NODES_COUNT = int(os.environ.get('NODES_COUNT', 10))
+IRONIC_NODES_COUNT = int(os.environ.get('IRONIC_NODES_COUNT', 0))
 
 HARDWARE = {
     "admin_node_memory": int(os.environ.get("ADMIN_NODE_MEMORY", 2048)),
@@ -190,6 +191,16 @@
 USE_ALL_DISKS = os.environ.get('USE_ALL_DISKS', 'true') == 'true'
 ISO_PATH = os.environ.get('ISO_PATH')
 
+IRONIC_ENABLED = os.environ.get('IRONIC_ENABLED', False) == 'true'
+
+if IRONIC_ENABLED:
+    POOL_IRONIC = os.environ.get('POOL_IRONIC', POOL_DEFAULT)
+    IRONIC_FORWARD = os.environ.get('IRONIC_FORWARD', FORWARD_DEFAULT)
+    FORWARDING['ironic'] = IRONIC_FORWARD
+    DHCP['ironic'] = False
+    POOLS['ironic'] = POOL_IRONIC.split(':')
+    INTERFACE_ORDER.append('ironic')
+
 if MULTIPLE_NETWORKS:
     FORWARDING['admin2'] = ADMIN_FORWARD
     FORWARDING['public2'] = PUBLIC_FORWARD