Add in NovaCell context (should probably be in charmhelpers)

hooks/nova_cc_context.py

@@ -1,7 +1,7 @@
 
 from charmhelpers.core.hookenv import (
     config, relation_ids, relation_set, log, ERROR,
-    unit_get)
+    unit_get, related_units, relation_get)
 
 from charmhelpers.fetch import apt_install, filter_installed_packages
 from charmhelpers.contrib.openstack import context, neutron, utils
@@ -26,6 +26,23 @@ class ApacheSSLContext(context.ApacheSSLContext):
         self.external_ports = determine_ports()
         return super(ApacheSSLContext, self).__call__()
 
+class NovaCellContext(context.OSContextGenerator):
+    interfaces = ['nova-cell']
+
+    def __call__(self):
+        log('Generating template context for identity-service')
+        ctxt = {}
+        for rid in relation_ids('nova-cell'):
+            for unit in related_units(rid):
+                rdata = relation_get(rid=rid, unit=unit)
+                ctxt = {
+                    'cell_type': rdata.get('cell_type'),
+                    'cell_name': rdata.get('cell_name'),
+                }
+                if context.context_complete(ctxt):
+                    return ctxt
+        return {}
+
 
 class VolumeServiceContext(context.OSContextGenerator):
     interfaces = []

hooks/nova_cc_hooks.py

@@ -508,7 +508,6 @@ def upgrade_charm():
 
 @hooks.hook('nova-cell-relation-joined')
 def nova_cell_relation_joined(rid=None):
-    print "nova_cell_relation_joined" + rid
     if is_relation_made('shared-db',['nova_password']):
         relation_set(relation_id=rid, dbready=True)
     else:
@@ -529,9 +528,6 @@ def nova_cell_relation_joined(rid=None):
 @hooks.hook('nova-cell-relation-changed')
 def nova_cell_relation_changed():
     CONFIGS.complete_contexts()
-    print "bob"
-    cellname = relation_get('cell_name')
-    celltype = relation_get('cell_type')
     # XXX Can we trust this ? Does the presence of a password always imply db is setup? (probably not)
     if is_relation_made('shared-db',['nova_password']):
         relation_set(dbready=True)

hooks/nova_cc_utils.py

@@ -113,7 +113,8 @@ BASE_RESOURCE_MAP = OrderedDict([
                      nova_cc_context.HAProxyContext(),
                      nova_cc_context.IdentityServiceContext(),
                      nova_cc_context.VolumeServiceContext(),
-                     nova_cc_context.NeutronCCContext()],
+                     nova_cc_context.NeutronCCContext(),
+                     nova_cc_context.NovaCellContext()],
     }),
     (NOVA_API_PASTE, {
         'services': [s for s in BASE_SERVICES if 'api' in s],

templates/icehouse/nova.conf

@@ -128,3 +128,4 @@ admin_password = {{ admin_password }}
 [osapi_v3]
 enabled=True
 
+{% include "parts/cell" %}