Require a target name when instantiating a node

This is effectively a required db field; without it, the watermark
calculation can be wrong until it's filled in, so make sure it's
there to start.

Also some minor logging changes.

Change-Id: Idc5a9cd40fe330f7a1aea4a5513267ee3c254f60

nodepool/nodedb.py

@@ -115,10 +115,12 @@ class SnapshotImage(object):
 
 
 class Node(object):
-    def __init__(self, provider_name, image_name, hostname=None,
-                 external_id=None, ip=None, state=BUILDING):
+    def __init__(self, provider_name, image_name, target_name,
+                 hostname=None, external_id=None, ip=None,
+                 state=BUILDING):
         self.provider_name = provider_name
         self.image_name = image_name
+        self.target_name = target_name
         self.external_id = external_id
         self.ip = ip
         self.hostname = hostname

nodepool/nodepool.py

@@ -112,6 +112,7 @@ class NodeUpdateListener(threading.Thread):
             self.log.debug("Unable to find node with nodename: %s" %
                            nodename)
             return
+        self.log.info("Setting node id: %s to USED" % node.id)
         node.state = nodedb.USED
         self.nodepool.updateStats(node.provider_name)
 
@@ -627,7 +628,7 @@ class NodePool(threading.Thread):
     def launchNode(self, provider, image, target):
         provider = self.config.providers[provider.name]
         image = provider.images[image.name]
-        node = self.db.createNode(provider.name, image.name)
+        node = self.db.createNode(provider.name, image.name, target.name)
         t = NodeLauncher(self, provider, image, target, node.id)
         t.start()
 

nodepool/nodeutils.py

@@ -156,7 +156,7 @@ def ssh_connect(ip, username, connect_kwargs={}, timeout=60):
             client = SSHClient(ip, username, **connect_kwargs)
             break
         except socket.error, e:
-            if e[0] != 111:
+            if e[0] not in [111, 113]:
                 log.exception('Exception while testing ssh access:')
 
     out = client.ssh("test ssh access", "echo access okay")