Pool manager now creates Nova nodes

Change-Id: Ifff48d96aad014f6fb11bc27ad38b54944d862ac

libra/mgm/mgm.py

@@ -22,6 +22,7 @@ import sys
 import threading
 
 from libra.mgm.rest import APIClient
+from libra.mgm.nova import Node
 from libra.common.options import Options, setup_logging
 
 
@@ -63,14 +64,14 @@ class Server(object):
                     return
                 if usage['free'] < self.args.nodes:
                     # we need to build new nodes
+                    nodes_required = self.args.nodes - usage['free']
                     self.logger.info(
                         'Building {nodes} nodes'
-                        .format(nodes=self.args.nodes - usage['free'])
+                        .format(nodes=nodes_required)
                     )
                     # TODO:
-                    # build nodes
-                    # send to API server
                     # deal with case where node is created but not sent to API
+                    self.build_nodes(nodes_required, api)
                 else:
                     self.logger.info('No new nodes required')
             else:
@@ -84,6 +85,36 @@ class Server(object):
                                   self.check_nodes, ())
         self.ct.start()
 
+    def build_nodes(self, count, api):
+        nova = Node(
+            self.args.nova_user,
+            self.args.nova_pass,
+            self.args.nova_tenant,
+            self.args.nova_auth_url,
+            self.args.nova_region,
+            self.args.nova_keyname,
+            self.args.nova_secgroup,
+            self.args.haproxy_image,
+            102
+        )
+        while count > 0:
+            # Do stuff
+            status, data = nova.build()
+            if not status:
+                self.logger.error(data)
+                return
+            body = {}
+            body['name'] = data['name']
+            addresses = data['addresses']['private']
+            for address in addresses:
+                if not address['addr'].startswith('10.'):
+                    break
+            body['ip'] = address['addr']
+            self.logger.info('Adding server {name} on {ip}'
+                             .format(name=body['name'], ip=body['ip']))
+            # TODO: upload to API server
+            count = count - 1
+
     def exit_handler(self, signum, frame):
         signal.signal(signal.SIGINT, signal.SIG_IGN)
         signal.signal(signal.SIGTERM, signal.SIG_IGN)

libra/mgm/nova.py

@@ -14,6 +14,7 @@
 
 import uuid
 import time
+import sys
 
 from novaclient import client
 
@@ -42,7 +43,9 @@ class Node(object):
         try:
             body = self._create(node_id)
         except:
-            return False, 'Error creating node {nid}'.format(nid=node_id)
+            return False, 'Error creating node {nid} exception {exc}'.format(
+                nid=node_id, exc=sys.exc_info()[0]
+            )
 
         server_id = body['server']['id']
         # try for 40 * 3 seconds
@@ -50,8 +53,9 @@ class Node(object):
         while waits > 0:
             time.sleep(3)
             status = self._status(server_id)
-            if status == 'ACTIVE':
-                return True, body
+            # Should also check if it is not spawning, so errors are detected
+            if status['status'] == 'ACTIVE':
+                return True, status
             waits = waits - 1
 
         return (False,
@@ -91,7 +95,7 @@ class Node(object):
         """ used to keep scanning to see if node is up """
         url = "/servers/{0}".format(node_id)
         resp, body = self.nova.get(url)
-        return body['server']['status']
+        return body['server']
 
     def _delete(self, node_id):
         """ delete a nova node, return 204 succeed """

tests/test_lbaas_mgm.py

@@ -44,7 +44,7 @@ class TestLBaaSMgmNova(unittest.TestCase):
             with mock.patch('time.time', mock.Mock(return_value=1234)):
                 resp, data = self.api.build()
                 self.assertTrue(resp)
-                self.assertEqual(data['server']['id'], 417773)
+                self.assertEqual(data['id'], 417773)
 
     def testCreateNodeFail(self):
         with mock.patch.object(httplib2.Http, "request", mock_bad_request):