cinder: link volume to image and instance

This change tracks the image_id and the instance_id of
volume.

Change-Id: I5e15080fad6cabece132d4609ed473494a64495e

ceilometer/data/meters.d/meters.yaml

@@ -128,6 +128,8 @@ metric:
     metadata:
       display_name: $.payload.display_name
       volume_type: $.payload.volume_type
+      image_id: $.payload.glance_metadata[?key=image_id][0].value
+      instance_id: $.payload.volume_attachment[0].server_id
 
   - name: 'snapshot.size'
     event_type:

ceilometer/gnocchi_client.py

@@ -215,6 +215,15 @@ resources_update_operations = [
          {"op": "add", "path": "/attributes/deleted_at",
           "value": {"type": "datetime", "required": False}},
      ]},
+    {"desc": "add instance_id/image_id to volume",
+     "type": "update_attribute_type",
+     "resource_type": "volume",
+     "data": [
+         {"op": "add", "path": "/attributes/image_id",
+          "value": {"type": "uuid", "required": False}},
+         {"op": "add", "path": "/attributes/instance_id",
+          "value": {"type": "uuid", "required": False}},
+     ]},
 ]
 
 # NOTE(sileht): We use LooseVersion because pbr can generate invalid

ceilometer/pipeline/data/event_definitions.yaml

@@ -81,6 +81,10 @@
       fields: payload.status
     created_at:
       fields: payload.created_at
+    image_id:
+      fields: payload.glance_metadata[?key=image_id][0].value
+    instance_id:
+      fields: payload.volume_attachment[0].server_id
 - event_type: ['volume.exists', 'volume.create.*', 'volume.delete.*', 'volume.resize.*', 'volume.attach.*', 'volume.detach.*', 'volume.update.*']
   traits:
     <<: *cinder_traits

ceilometer/publisher/data/gnocchi_resources.yaml

@@ -196,6 +196,8 @@ resources:
     attributes:
       display_name: resource_metadata.(display_name|name)
       volume_type: resource_metadata.volume_type
+      image_id: resource_metadata.image_id
+      instance_id: resource_metadata.instance_id
     event_delete: volume.delete.start
     event_attributes:
       id: resource_id

ceilometer/tests/unit/volume/test_cinder.py

@@ -50,6 +50,18 @@ VOLUME_LIST = [
           u'multiattach': False,
           u'source_volid': None,
           u'consistencygroup_id': None,
+          u"volume_image_metadata": {
+              u"checksum": u"17d9daa4fb8e20b0f6b7dec0d46fdddf",
+              u"container_format": u"bare",
+              u"disk_format": u"raw",
+              u"hw_disk_bus": u"scsi",
+              u"hw_scsi_model": u"virtio-scsi",
+              u"image_id": u"f0019ee3-523c-45ab-b0b6-3adc529673e7",
+              u"image_name": u"debian-jessie-scsi",
+              u"min_disk": u"0",
+              u"min_ram": u"0",
+              u"size": u"1572864000"
+          },
           u'os-vol-mig-status-attr:name_id': None,
           u'name': None,
           u'bootable': u'false',
@@ -71,6 +83,18 @@ SNAPSHOT_LIST = [
           u'volume_id': u'6f27bc42-c834-49ea-ae75-8d1073b37806',
           u'metadata': {},
           u'created_at': u'2016-10-19T07:56:55.000000',
+          u"volume_image_metadata": {
+              u"checksum": u"17d9daa4fb8e20b0f6b7dec0d46fdddf",
+              u"container_format": u"bare",
+              u"disk_format": u"raw",
+              u"hw_disk_bus": u"scsi",
+              u"hw_scsi_model": u"virtio-scsi",
+              u"image_id": u"f0019ee3-523c-45ab-b0b6-3adc529673e7",
+              u"image_name": u"debian-jessie-scsi",
+              u"min_disk": u"0",
+              u"min_ram": u"0",
+              u"size": u"1572864000"
+          },
           u'name': None})
 ]
 
@@ -119,6 +143,11 @@ class TestVolumeSizePollster(base.BaseTestCase):
                          volume_size_samples[0].project_id)
         self.assertEqual('d94c18fb-b680-4912-9741-da69ee83c94f',
                          volume_size_samples[0].resource_id)
+        self.assertEqual('f0019ee3-523c-45ab-b0b6-3adc529673e7',
+                         volume_size_samples[0].resource_metadata["image_id"])
+        self.assertEqual('1ae69721-d071-4156-a2bd-b11bb43ec2e3',
+                         volume_size_samples[0].resource_metadata
+                         ["instance_id"])
 
 
 class TestVolumeSnapshotSizePollster(base.BaseTestCase):
@@ -142,6 +171,9 @@ class TestVolumeSnapshotSizePollster(base.BaseTestCase):
                          volume_snapshot_size_samples[0].project_id)
         self.assertEqual('b1ea6783-f952-491e-a4ed-23a6a562e1cf',
                          volume_snapshot_size_samples[0].resource_id)
+        self.assertEqual('f0019ee3-523c-45ab-b0b6-3adc529673e7',
+                         volume_snapshot_size_samples[0].resource_metadata
+                         ["image_id"])
 
 
 class TestVolumeBackupSizePollster(base.BaseTestCase):

ceilometer/volume/cinder.py

@@ -21,7 +21,16 @@ from ceilometer import sample
 
 class _Base(plugin_base.PollsterBase):
     def extract_metadata(self, obj):
-        return dict((k, getattr(obj, k)) for k in self.FIELDS)
+        metadata = dict((k, getattr(obj, k)) for k in self.FIELDS)
+        if getattr(obj, "volume_image_metadata", None):
+            metadata["image_id"] = obj.volume_image_metadata.get("image_id")
+        else:
+            metadata["image_id"] = None
+        if getattr(obj, "attachments", None):
+            metadata["instance_id"] = obj.attachments[0]["server_id"]
+        else:
+            metadata["instance_id"] = None
+        return metadata
 
 
 class VolumeSizePollster(_Base):