From dcda6be23c3797872c406f58578b05befd378c97 Mon Sep 17 00:00:00 2001
From: MORITA Kazutaka <morita.kazutaka@gmail.com>
Date: Tue, 19 Apr 2011 20:48:26 +0900
Subject: Add support for creating a snapshot of a nova volume with
 euca-create-snapshot.

---
 nova/api/ec2/__init__.py |  6 ++++++
 nova/api/ec2/cloud.py    | 52 ++++++++++++++++++++++++++++++++++++++++--------
 2 files changed, 50 insertions(+), 8 deletions(-)

(limited to 'nova/api')

diff --git a/nova/api/ec2/__init__.py b/nova/api/ec2/__init__.py
index a3c3b25a1..a89d65a38 100644
--- a/nova/api/ec2/__init__.py
+++ b/nova/api/ec2/__init__.py
@@ -331,6 +331,12 @@ class Executor(wsgi.Application):
             ec2_id = ec2utils.id_to_ec2_id(ex.volume_id, 'vol-%08x')
             message = _('Volume %s not found') % ec2_id
             return self._error(req, context, type(ex).__name__, message)
+        except exception.SnapshotNotFound as ex:
+            LOG.info(_('SnapshotNotFound raised: %s'), unicode(ex),
+                     context=context)
+            ec2_id = ec2utils.id_to_ec2_id(ex.snapshot_id, 'snap-%08x')
+            message = _('Snapshot %s not found') % ec2_id
+            return self._error(req, context, type(ex).__name__, message)
         except exception.NotFound as ex:
             LOG.info(_('NotFound raised: %s'), unicode(ex), context=context)
             return self._error(req, context, type(ex).__name__, unicode(ex))
diff --git a/nova/api/ec2/cloud.py b/nova/api/ec2/cloud.py
index bd4c9dcd4..6daf299b9 100644
--- a/nova/api/ec2/cloud.py
+++ b/nova/api/ec2/cloud.py
@@ -283,14 +283,46 @@ class CloudController(object):
                            owner=None,
                            restorable_by=None,
                            **kwargs):
-        return {'snapshotSet': [{'snapshotId': 'fixme',
-                                 'volumeId': 'fixme',
-                                 'status': 'fixme',
-                                 'startTime': 'fixme',
-                                 'progress': 'fixme',
-                                 'ownerId': 'fixme',
-                                 'volumeSize': 0,
-                                 'description': 'fixme'}]}
+        if snapshot_id:
+            snapshots = []
+            for ec2_id in snapshot_id:
+                internal_id = ec2utils.ec2_id_to_id(ec2_id)
+                snapshot = self.volume_api.get_snapshot(context, snapshot_id=internal_id)
+                snapshots.append(snapshot)
+        else:
+            snapshots = self.volume_api.get_all_snapshots(context)
+        snapshots = [self._format_snapshot(context, s) for s in snapshots]
+        return {'snapshotSet': snapshots}
+
+    def _format_snapshot(self, context, snapshot):
+        s = {}
+        s['snapshotId'] = ec2utils.id_to_ec2_id(snapshot['id'], 'snap-%08x')
+        s['volumeId'] = ec2utils.id_to_ec2_id(snapshot['volume_id'], 'vol-%08x')
+        s['status'] = snapshot['status']
+        s['startTime'] = snapshot['created_at']
+        s['progress'] = snapshot['progress']
+        s['ownerId'] = snapshot['project_id']
+        s['volumeSize'] = snapshot['volume_size']
+        s['description'] = snapshot['display_description']
+
+        s['display_name'] = snapshot['display_name']
+        s['display_description'] = snapshot['display_description']
+        return s
+
+    def create_snapshot(self, context, volume_id, **kwargs):
+        LOG.audit(_("Create snapshot of volume %s"), volume_id, context=context)
+        volume_id = ec2utils.ec2_id_to_id(volume_id)
+        snapshot = self.volume_api.create_snapshot(
+                context,
+                volume_id=volume_id,
+                name=kwargs.get('display_name'),
+                description=kwargs.get('display_description'))
+        return {'snapshotSet': [self._format_snapshot(context, snapshot)]}
+
+    def delete_snapshot(self, context, snapshot_id, **kwargs):
+        snapshot_id = ec2utils.ec2_id_to_id(snapshot_id)
+        self.volume_api.delete_snapshot(context, snapshot_id=snapshot_id)
+        return True
 
     def describe_key_pairs(self, context, key_name=None, **kwargs):
         key_pairs = db.key_pair_get_all_by_user(context, context.user_id)
@@ -598,6 +630,10 @@ class CloudController(object):
                                    'volumeId': v['volumeId']}]
         else:
             v['attachmentSet'] = [{}]
+        if volume.get('snapshot_id') != None:
+            v['snapshotId'] = ec2utils.id_to_ec2_id(volume['snapshot_id'], 'snap-%08x')
+        else:
+            v['snapshotId'] = None
 
         v['display_name'] = volume['display_name']
         v['display_description'] = volume['display_description']
-- 
cgit