recreate all slivers when image or flavor is changed

[plstackapi.git] / planetstack / core / xoslib / objects / sliceplus.py

diff --git a/planetstack/core/xoslib/objects/sliceplus.py b/planetstack/core/xoslib/objects/sliceplus.py
index 73017ee..cd86fce 100644 (file)
--- a/planetstack/core/xoslib/objects/sliceplus.py
+++ b/planetstack/core/xoslib/objects/sliceplus.py
@@ -8,46 +8,63 @@ class SlicePlus(Slice, PlusObjectMixin):
 
     def __init__(self, *args, **kwargs):
         super(SlicePlus, self).__init__(*args, **kwargs)
-        self._update_site_allocation = None
         self._update_users = None
+        self._sliceInfo = None
+        self.getSliceInfo()
+        self._site_allocation = self._sliceInfo["sitesUsed"]
+        self._initial_site_allocation = self._site_allocation
 
     def getSliceInfo(self, user=None):
-        used_sites = {}
-        used_deployments = {}
-        sliverCount = 0
-        for sliver in self.slivers.all():
-            site = sliver.node.site_deployment.site
-            deployment = sliver.node.site_deployment.deployment
-            used_sites[site.name] = used_sites.get(site.name, 0) + 1
-            used_deployments[deployment.name] = used_deployments.get(deployment.name, 0) + 1
-            sliverCount = sliverCount + 1
-
-        roles = []
-        if (user!=None):
-            roles = [x.role.role for x in self.sliceprivileges.filter(user=user)]
-
-        return {"sitesUsed": used_sites,
-                "deploymentsUsed": used_deployments,
-                "sliverCount": sliverCount,
-                "siteCount": len(used_sites.keys()),
-                "roles": roles}
+        if not self._sliceInfo:
+            used_sites = {}
+            used_deployments = {}
+            sliverCount = 0
+            for sliver in self.slivers.all():
+                site = sliver.node.site_deployment.site
+                deployment = sliver.node.site_deployment.deployment
+                used_sites[site.name] = used_sites.get(site.name, 0) + 1
+                used_deployments[deployment.name] = used_deployments.get(deployment.name, 0) + 1
+                sliverCount = sliverCount + 1
+
+            users = {}
+            for priv in SlicePrivilege.objects.filter(slice=self):
+                if not (priv.user.id in users.keys()):
+                    users[priv.user.id] = {"name": priv.user.email, "id": priv.user.id, "roles": []}
+                users[priv.user.id]["roles"].append(priv.role.role)
+
+            self._sliceInfo= {"sitesUsed": used_sites,
+                    "deploymentsUsed": used_deployments,
+                    "sliverCount": sliverCount,
+                    "siteCount": len(used_sites.keys()),
+                    "users": users,
+                    "roles": []}
+
+        if user:
+            auser = self._sliceInfo["users"].get(user.id, None)
+            if (auser):
+                self._sliceInfo["roles"] = auser["roles"]
+
+        return self._sliceInfo
 
     @property
     def site_allocation(self):
-        return self.getSliceInfo()["sitesUsed"]
+        return self._site_allocation
 
     @site_allocation.setter
     def site_allocation(self, value):
-        self._update_site_allocation = value
-        #print "XXX set sitesUsed to", value
+        self._site_allocation = value
+
+    @property
+    def user_names(self):
+        return [user["name"] for user in self.getSliceInfo()["users"].values()]
+
+    @user_names.setter
+    def user_names(self, value):
+        pass # it's read-only
 
     @property
     def users(self):
-        user_ids = []
-        for priv in SlicePrivilege.objects.filter(slice=self):
-            if not (priv.user.id in user_ids):
-                user_ids.append(priv.user.id)
-        return user_ids
+        return [user["id"] for user in self.getSliceInfo()["users"].values()]
 
     @users.setter
     def users(self, value):
@@ -93,26 +110,30 @@ class SlicePlus(Slice, PlusObjectMixin):
         return nodeList
 
     def save(self, *args, **kwargs):
+        updated_image = self.has_field_changed("default_image")
+        updated_flavor = self.has_field_changed("default_flavor")
+
         super(SlicePlus, self).save(*args, **kwargs)
 
-        if self._update_site_allocation:
-            self.save_site_allocation(noAct=True)
+        updated_sites = (self._site_allocation != self._initial_site_allocation) or updated_image or updated_flavor
+        if updated_sites:
+            self.save_site_allocation(noAct=True, reset=(updated_image or updated_flavor))
 
         if self._update_users:
             self.save_users(noAct=True)
 
-        if self._update_site_allocation:
-            self.save_site_allocation()
+        if updated_sites:
+            self.save_site_allocation(reset=(updated_image or updated_flavor))
 
         if self._update_users:
             self.save_users()
 
-    def save_site_allocation(self, noAct = False):
-        new_site_allocation = self._update_site_allocation
+    def save_site_allocation(self, noAct = False, reset=False):
+        print "save_site_allocation, reset=",reset
 
         all_slice_slivers = self.slivers.all()
-        for site_name in new_site_allocation.keys():
-            desired_allocation = new_site_allocation[site_name]
+        for site_name in self._site_allocation.keys():
+            desired_allocation = self._site_allocation[site_name]
 
             # make a list of the slivers for this site
             slivers = []
@@ -121,11 +142,13 @@ class SlicePlus(Slice, PlusObjectMixin):
                     slivers.append(sliver)
 
             # delete extra slivers
-            while (len(slivers) > desired_allocation):
+            while (reset and len(slivers)>0) or (len(slivers) > desired_allocation):
                 sliver = slivers.pop()
-                print "deleting sliver", sliver
                 if (not noAct):
+                    print "deleting sliver", sliver
                     sliver.delete()
+                else:
+                    print "would delete sliver", sliver
 
             # add more slivers
             if (len(slivers) < desired_allocation):
@@ -149,9 +172,10 @@ class SlicePlus(Slice, PlusObjectMixin):
                             deployment = node.site_deployment.deployment)
                     slivers.append(sliver)
                     if (not noAct):
+                        print "added sliver", sliver
                         sliver.save()
-
-                    print "added sliver", sliver
+                    else:
+                        print "would add sliver", sliver
 
                     node.sliverCount = node.sliverCount + 1
 
@@ -165,7 +189,6 @@ class SlicePlus(Slice, PlusObjectMixin):
 
         for user_id in new_users:
             if (user_id not in slice_user_ids):
-                print "XXX", user_id
                 priv = SlicePrivilege(slice=self, user=User.objects.get(id=user_id), role=default_role)
                 if (not noAct):
                     priv.save()