Merge "Adds support for volume snapshots (volume snapshots table and ability to boot from a volume snapshot)."

horizon/horizon/api/nova.py

@@ -455,3 +455,16 @@ def volume_attach(request, volume_id, instance_id, device):
 def volume_detach(request, instance_id, attachment_id):
     novaclient(request).volumes.delete_server_volume(
             instance_id, attachment_id)
+
+
+def volume_snapshot_list(request):
+    return novaclient(request).volume_snapshots.list()
+
+
+def volume_snapshot_create(request, volume_id, name, description):
+    return novaclient(request).volume_snapshots.create(
+            volume_id, display_name=name, display_description=description)
+
+
+def volume_snapshot_delete(request, snapshot_id):
+    novaclient(request).volume_snapshots.delete(snapshot_id)

horizon/horizon/dashboards/nova/images_and_snapshots/images/forms.py

@@ -99,7 +99,7 @@ class LaunchForm(forms.SelfHandlingForm):
                                 widget=forms.CheckboxSelectMultiple(),
                                 help_text=_("Launch instance in these "
                                             "security groups."))
-    volume = forms.ChoiceField(label=_("Volume"),
+    volume = forms.ChoiceField(label=_("Volume or Volume Snapshot"),
                                required=False,
                                help_text=_("Volume to boot from."))
     device_name = forms.CharField(label=_("Device Name"),
@@ -131,10 +131,10 @@ class LaunchForm(forms.SelfHandlingForm):
                     delete_on_terminate = 1
                 else:
                     delete_on_terminate = 0
-                dev_spec = {data['device_name']:
-                        ("%s:::%s" % (data['volume'], delete_on_terminate))}
+                dev_mapping = {data['device_name']:
+                        ("%s::%s" % (data['volume'], delete_on_terminate))}
             else:
-                dev_spec = None
+                dev_mapping = None
 
             api.server_create(request,
                               data['name'],
@@ -143,7 +143,7 @@ class LaunchForm(forms.SelfHandlingForm):
                               data.get('keypair'),
                               normalize_newlines(data.get('user_data')),
                               data.get('security_groups'),
-                              dev_spec,
+                              dev_mapping,
                               instance_count=int(data.get('count')))
             messages.success(request,
                          _('Instance "%s" launched.') % data["name"])

horizon/horizon/dashboards/nova/images_and_snapshots/images/tests.py

@@ -22,6 +22,7 @@ from django import http
 from django.contrib import messages
 from django.core.urlresolvers import reverse
 from keystoneclient import exceptions as keystone_exceptions
+from novaclient.v1_1 import client as nova_client, volume_snapshots
 from mox import IgnoreArg, IsA
 
 from horizon import api
@@ -74,6 +75,16 @@ class ImageViewTests(test.BaseViewTests):
         volume.displayName = ''
         self.volumes = (volume,)
 
+        self.volume_snapshot = volume_snapshots.Snapshot(
+                volume_snapshots.SnapshotManager,
+                {'id': 2,
+                 'displayName': 'test snapshot',
+                 'displayDescription': 'test snapshot description',
+                 'size': 40,
+                 'status': 'available',
+                 'volumeId': 1})
+        self.volume_snapshots = [self.volume_snapshot]
+
     def test_launch_get(self):
         IMAGE_ID = 1
 
@@ -111,14 +122,14 @@ class ImageViewTests(test.BaseViewTests):
                          self.keypairs[0].name)
 
     def test_launch_post(self):
-        FLAVOR_ID = self.flavors[0].id
-        IMAGE_ID = '1'
-        keypair = self.keypairs[0].name
-        SERVER_NAME = 'serverName'
-        USER_DATA = 'userData'
-        volume = self.volumes[0].id
-        device_name = 'vda'
-        BLOCK_DEVICE_MAPPING = {device_name: "1:::0"}
+        FLAVOR_ID = unicode(self.flavors[0].id)
+        IMAGE_ID = u'1'
+        keypair = unicode(self.keypairs[0].name)
+        SERVER_NAME = u'serverName'
+        USER_DATA = u'userData'
+        volume = u'%s:vol' % self.volumes[0].id
+        device_name = u'vda'
+        BLOCK_DEVICE_MAPPING = {device_name: u"1:vol::0"}
 
         form_data = {'method': 'LaunchForm',
                      'flavor': FLAVOR_ID,
@@ -130,8 +141,7 @@ class ImageViewTests(test.BaseViewTests):
                      'tenant_id': self.TEST_TENANT,
                      'security_groups': 'default',
                      'volume': volume,
-                     'device_name': device_name
-                     }
+                     'device_name': device_name}
 
         self.mox.StubOutWithMock(api, 'image_get_meta')
         self.mox.StubOutWithMock(api, 'flavor_list')
@@ -143,9 +153,9 @@ class ImageViewTests(test.BaseViewTests):
         api.flavor_list(IsA(http.HttpRequest)).AndReturn(self.flavors)
         api.keypair_list(IsA(http.HttpRequest)).AndReturn(self.keypairs)
         api.security_group_list(IsA(http.HttpRequest)).AndReturn(
-                                    self.security_groups)
-        api.image_get_meta(IsA(http.HttpRequest),
-                      IMAGE_ID).AndReturn(self.visibleImage)
+                self.security_groups)
+        api.image_get_meta(IsA(http.HttpRequest), IMAGE_ID).AndReturn(
+                self.visibleImage)
         api.volume_list(IsA(http.HttpRequest)).AndReturn(self.volumes)
         api.server_create(IsA(http.HttpRequest), SERVER_NAME,
                           str(IMAGE_ID), str(FLAVOR_ID),
@@ -254,9 +264,8 @@ class ImageViewTests(test.BaseViewTests):
         api.flavor_list(IgnoreArg()).AndReturn(self.flavors)
         api.keypair_list(IgnoreArg()).AndReturn(self.keypairs)
         api.security_group_list(IsA(http.HttpRequest)).AndReturn(
-                                    self.security_groups)
-        api.image_get_meta(IgnoreArg(),
-                      IMAGE_ID).AndReturn(self.visibleImage)
+                self.security_groups)
+        api.image_get_meta(IgnoreArg(), IMAGE_ID).AndReturn(self.visibleImage)
         api.volume_list(IgnoreArg()).AndReturn(self.volumes)
 
         exception = keystone_exceptions.ClientException('Failed')
@@ -270,9 +279,6 @@ class ImageViewTests(test.BaseViewTests):
                           None,
                           instance_count=IsA(int)).AndRaise(exception)
 
-        self.mox.StubOutWithMock(messages, 'error')
-        messages.error(IsA(http.HttpRequest), IsA(basestring))
-
         self.mox.ReplayAll()
         url = reverse('horizon:nova:images_and_snapshots:images:launch',
                       args=[IMAGE_ID])

horizon/horizon/dashboards/nova/images_and_snapshots/images/views.py

@@ -110,17 +110,42 @@ class LaunchView(forms.ModalFormView):
         return security_group_list
 
     def volume_list(self):
+        volume_options = [("", _("Select Volume"))]
+
+        def _get_volume_select_item(volume):
+            if hasattr(volume, "volumeId"):
+                vol_type = "snap"
+                visible_label = _("Snapshot")
+            else:
+                vol_type = "vol"
+                visible_label = _("Volume")
+            return (("%s:%s" % (volume.id, vol_type)),
+                    ("%s - %s GB (%s)" % (volume.displayName,
+                                         volume.size,
+                                         visible_label)))
+
+        # First add volumes to the list
         try:
             volumes = [v for v in api.volume_list(self.request) \
-                    if v.status == api.VOLUME_STATE_AVAILABLE]
-            volume_sel = [(v.id, ("%s (%s GB)" % (v.displayName, v.size))) \
-                    for v in volumes]
-            volume_sel.insert(0, ("", "Select Volume"))
+                       if v.status == api.VOLUME_STATE_AVAILABLE]
+            volume_options.extend(
+                    [_get_volume_select_item(vol) for vol in volumes])
         except:
             exceptions.handle(self.request,
                               _('Unable to retrieve list of volumes'))
-            volume_sel = []
-        return volume_sel
+
+        # Next add volume snapshots to the list
+        try:
+            snapshots = api.novaclient(self.request).volume_snapshots.list()
+            snapshots = [s for s in snapshots \
+                         if s.status == api.VOLUME_STATE_AVAILABLE]
+            volume_options.extend(
+                    [_get_volume_select_item(snap) for snap in snapshots])
+        except:
+            exceptions.handle(self.request,
+                              _('Unable to retrieve list of volumes'))
+
+        return volume_options
 
 
 class UpdateView(forms.ModalFormView):

horizon/horizon/dashboards/nova/images_and_snapshots/snapshots/panel.py

@@ -23,7 +23,7 @@ from horizon.dashboards.nova import dashboard
 
 
 class Snapshots(horizon.Panel):
-    name = "Snapshots"
+    name = "Instance Snapshots"
     slug = 'snapshots'
 
 

horizon/horizon/dashboards/nova/images_and_snapshots/snapshots/tables.py

@@ -32,6 +32,6 @@ class DeleteSnapshot(DeleteImage):
 class SnapshotsTable(ImagesTable):
     class Meta:
         name = "snapshots"
-        verbose_name = _("Snapshots")
+        verbose_name = _("Instance Snapshots")
         table_actions = (DeleteSnapshot,)
         row_actions = (LaunchImage, EditImage, DeleteSnapshot)

horizon/horizon/dashboards/nova/images_and_snapshots/views.py

@@ -32,13 +32,14 @@ from horizon import exceptions
 from horizon import tables
 from .images.tables import ImagesTable
 from .snapshots.tables import SnapshotsTable
+from .volume_snapshots.tables import VolumeSnapshotsTable
 
 
 LOG = logging.getLogger(__name__)
 
 
 class IndexView(tables.MultiTableView):
-    table_classes = (ImagesTable, SnapshotsTable)
+    table_classes = (ImagesTable, SnapshotsTable, VolumeSnapshotsTable)
     template_name = 'nova/images_and_snapshots/index.html'
 
     def get_images_data(self):
@@ -59,3 +60,12 @@ class IndexView(tables.MultiTableView):
             snapshots = []
             exceptions.handle(self.request, _("Unable to retrieve snapshots."))
         return snapshots
+
+    def get_volume_snapshots_data(self):
+        try:
+            snapshots = api.volume_snapshot_list(self.request)
+        except:
+            snapshots = []
+            exceptions.handle(self.request, _("Unable to retrieve "
+                    "volume snapshots."))
+        return snapshots

horizon/horizon/dashboards/nova/images_and_snapshots/volume_snapshots/panel.py

@@ -0,0 +1,26 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2011 Nebula, Inc.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import horizon
+from horizon.dashboards.nova import dashboard
+
+
+class VolumeSnapshots(horizon.Panel):
+    name = "Volume Snapshots"
+    slug = 'volume_snapshots'
+
+
+dashboard.Nova.register(VolumeSnapshots)

horizon/horizon/dashboards/nova/images_and_snapshots/volume_snapshots/tables.py

@@ -0,0 +1,45 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2012 Nebula, Inc.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import logging
+
+from django.utils.translation import ugettext as _
+
+from horizon import api
+from horizon import tables
+from ...instances_and_volumes.volumes import tables as volume_tables
+
+
+LOG = logging.getLogger(__name__)
+
+
+class DeleteVolumeSnapshot(tables.DeleteAction):
+    data_type_singular = _("Volume Snapshot")
+    data_type_plural = _("Volume Snaphots")
+    classes = ('danger',)
+
+    def delete(self, request, obj_id):
+        api.volume_snapshot_delete(request, obj_id)
+
+
+class VolumeSnapshotsTable(volume_tables.VolumesTableBase):
+    volume_id = tables.Column("volumeId", verbose_name=_("Volume ID"))
+
+    class Meta:
+        name = "volume_snapshots"
+        verbose_name = _("Volume Snapshots")
+        table_actions = (DeleteVolumeSnapshot,)
+        row_actions = (DeleteVolumeSnapshot,)

horizon/horizon/dashboards/nova/images_and_snapshots/volume_snapshots/tests.py

@@ -0,0 +1,78 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2011 United States Government as represented by the
+# Administrator of the National Aeronautics and Space Administration.
+# All Rights Reserved.
+#
+# Copyright 2011 Nebula, Inc.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from django import http
+from django.core.urlresolvers import reverse
+from novaclient.v1_1 import volume_snapshots
+from mox import IsA
+
+from horizon import api
+from horizon import test
+
+
+INDEX_URL = reverse('horizon:nova:images_and_snapshots:index')
+
+
+class SnapshotsViewTests(test.BaseViewTests):
+    def test_create_snapshot_get(self):
+        VOLUME_ID = u'1'
+
+        res = self.client.get(reverse('horizon:nova:instances_and_volumes:'
+                                      'volumes:create_snapshot',
+                                      args=[VOLUME_ID]))
+
+        self.assertTemplateUsed(res, 'nova/instances_and_volumes/'
+                                     'volumes/create_snapshot.html')
+
+    def test_create_snapshot_post(self):
+        VOLUME_ID = u'1'
+        SNAPSHOT_NAME = u'vol snap'
+        SNAPSHOT_DESCRIPTION = u'vol snap desc'
+
+        volume_snapshot = volume_snapshots.Snapshot(
+                volume_snapshots.SnapshotManager,
+                {'id': 1,
+                 'displayName': 'test snapshot',
+                 'displayDescription': 'test snapshot description',
+                 'size': 40,
+                 'status': 'available',
+                 'volumeId': 1})
+
+        formData = {'method': 'CreateSnapshotForm',
+                    'tenant_id': self.TEST_TENANT,
+                    'volume_id': VOLUME_ID,
+                    'name': SNAPSHOT_NAME,
+                    'description': SNAPSHOT_DESCRIPTION}
+
+        self.mox.StubOutWithMock(api, 'volume_snapshot_create')
+
+        api.volume_snapshot_create(
+                IsA(http.HttpRequest), str(VOLUME_ID), SNAPSHOT_NAME,
+                SNAPSHOT_DESCRIPTION).AndReturn(volume_snapshot)
+
+        self.mox.ReplayAll()
+
+        res = self.client.post(
+                reverse('horizon:nova:instances_and_volumes:volumes:'
+                        'create_snapshot',
+                        args=[VOLUME_ID]),
+                        formData)
+
+        self.assertRedirectsNoFollow(res, INDEX_URL)

horizon/horizon/dashboards/nova/instances_and_volumes/volumes/forms.py

@@ -15,6 +15,7 @@ from django.utils.translation import ugettext as _
 
 from horizon import api
 from horizon import forms
+from horizon import exceptions
 from novaclient import exceptions as novaclient_exceptions
 
 
@@ -82,3 +83,33 @@ class AttachForm(forms.SelfHandlingForm):
                            _('Error attaching volume: %s') % e.message)
         return shortcuts.redirect(
                             "horizon:nova:instances_and_volumes:index")
+
+
+class CreateSnapshotForm(forms.SelfHandlingForm):
+    name = forms.CharField(max_length="255", label=_("Snapshot Name"))
+    description = forms.CharField(widget=forms.Textarea,
+            label=_("Description"), required=False)
+
+    def __init__(self, *args, **kwargs):
+        super(CreateSnapshotForm, self).__init__(*args, **kwargs)
+
+        # populate volume_id
+        volume_id = kwargs.get('initial', {}).get('volume_id', [])
+        self.fields['volume_id'] = forms.CharField(widget=forms.HiddenInput(),
+                                                   initial=volume_id)
+
+    def handle(self, request, data):
+        try:
+            api.volume_snapshot_create(request,
+                                       data['volume_id'],
+                                       data['name'],
+                                       data['description'])
+
+            message = _('Creating volume snapshot "%s"') % data['name']
+            LOG.info(message)
+            messages.info(request, message)
+        except:
+            exceptions.handle(request,
+                              _('Error Creating Volume Snapshot: %s'))
+
+        return shortcuts.redirect("horizon:nova:images_and_snapshots:index")

horizon/horizon/dashboards/nova/instances_and_volumes/volumes/tables.py

@@ -55,6 +55,15 @@ class EditAttachments(tables.LinkAction):
         return volume.status in ("available", "in-use")
 
 
+class CreateSnapshot(tables.LinkAction):
+    name = "snapshots"
+    verbose_name = _("Create Snapshot")
+    url = "horizon:nova:instances_and_volumes:volumes:create_snapshot"
+
+    def allowed(self, request, volume=None):
+        return volume.status in ("available", "in-use")
+
+
 def get_size(volume):
     return _("%s GB") % volume.size
 
@@ -75,17 +84,11 @@ def get_attachment(volume):
     return safestring.mark_safe(", ".join(attachments))
 
 
-class VolumesTable(tables.DataTable):
-    name = tables.Column("displayName",
-                         verbose_name=_("Name"),
-                         link="horizon:nova:instances_and_volumes:"
-                              "volumes:detail")
+class VolumesTableBase(tables.DataTable):
+    name = tables.Column("displayName", verbose_name=_("Name"))
     description = tables.Column("displayDescription",
-                                verbose_name=("Description"))
+                                verbose_name=_("Description"))
     size = tables.Column(get_size, verbose_name=_("Size"))
-    attachments = tables.Column(get_attachment,
-                                verbose_name=_("Attachments"),
-                                empty_value=_("-"))
     status = tables.Column("status", filters=(title,))
 
     def sanitize_id(self, obj_id):
@@ -94,11 +97,16 @@ class VolumesTable(tables.DataTable):
     def get_object_display(self, obj):
         return obj.displayName
 
+
+class VolumesTable(VolumesTableBase):
+    attachments = tables.Column(get_attachment,
+                                verbose_name=_("Attachments"))
+
     class Meta:
         name = "volumes"
         verbose_name = _("Volumes")
         table_actions = (CreateVolume, DeleteVolume,)
-        row_actions = (EditAttachments, DeleteVolume,)
+        row_actions = (EditAttachments, CreateSnapshot, DeleteVolume)
 
 
 class DetachVolume(tables.BatchAction):

horizon/horizon/dashboards/nova/instances_and_volumes/volumes/urls.py

@@ -16,7 +16,7 @@
 
 from django.conf.urls.defaults import patterns, url
 
-from .views import CreateView, EditAttachmentsView
+from .views import CreateView, EditAttachmentsView, CreateSnapshotView
 
 
 urlpatterns = patterns(
@@ -25,5 +25,8 @@ urlpatterns = patterns(
     url(r'^(?P<volume_id>[^/]+)/attach/$',
         EditAttachmentsView.as_view(),
         name='attach'),
+    url(r'^(?P<volume_id>[^/]+)/create_snapshot/$',
+        CreateSnapshotView.as_view(),
+        name='create_snapshot'),
     url(r'^(?P<volume_id>[^/]+)/detail/$', 'detail', name='detail'),
 )

horizon/horizon/dashboards/nova/instances_and_volumes/volumes/views.py

@@ -29,7 +29,7 @@ from horizon import api
 from horizon import exceptions
 from horizon import forms
 from horizon import tables
-from .forms import CreateForm, AttachForm
+from .forms import CreateForm, AttachForm, CreateSnapshotForm
 from .tables import AttachmentsTable
 
 
@@ -63,6 +63,17 @@ class CreateView(forms.ModalFormView):
     template_name = 'nova/instances_and_volumes/volumes/create.html'
 
 
+class CreateSnapshotView(forms.ModalFormView):
+    form_class = CreateSnapshotForm
+    template_name = 'nova/instances_and_volumes/volumes/create_snapshot.html'
+
+    def get_context_data(self, **kwargs):
+        return {'volume_id': kwargs['volume_id']}
+
+    def get_initial(self):
+        return {'volume_id': self.kwargs["volume_id"]}
+
+
 class EditAttachmentsView(tables.DataTableView):
     table_class = AttachmentsTable
     template_name = 'nova/instances_and_volumes/volumes/attach.html'

horizon/horizon/dashboards/nova/templates/nova/images_and_snapshots/index.html

@@ -13,4 +13,7 @@
   <div class="snapshots">
     {{ snapshots_table.render }}
   </div>
+  <div class="volume_snapshots">
+    {{ volume_snapshots_table.render }}
+  </div>
 {% endblock %}

horizon/horizon/dashboards/nova/templates/nova/instances_and_volumes/volumes/_create_snapshot.html

@@ -0,0 +1,25 @@
+{% extends "horizon/common/_modal_form.html" %}
+{% load i18n %}
+
+{% block form_id %}{% endblock %}
+{% block form_action %}{% url horizon:nova:instances_and_volumes:volumes:create_snapshot volume_id %}{% endblock %}
+
+{% block modal_id %}create_volume_snapshot_modal{% endblock %}
+{% block modal-header %}{% trans "Create Volume Snapshot" %}{% endblock %}
+
+{% block modal-body %}
+<div class="left">
+  <fieldset>
+  {% include "horizon/common/_form_fields.html" %}
+  </fieldset>
+</div>
+<div class="right">
+  <h3>{% trans "Description" %}:</h3>
+  <p>{% trans "Volumes are block devices that can be attached to instances." %}</p>
+</div>
+{% endblock %}
+
+{% block modal-footer %}
+  <input class="btn primary pull-right" type="submit" value="{% trans "Create Volume Snapshot" %}" />
+  <a href="{% url horizon:nova:instances_and_volumes:index %}" class="btn secondary cancel close">{% trans "Cancel" %}</a>
+{% endblock %}

horizon/horizon/dashboards/nova/templates/nova/instances_and_volumes/volumes/create_snapshot.html

@@ -0,0 +1,11 @@
+{% extends 'nova/base.html' %}
+{% load i18n %}
+{% block title %}{% trans "Create Volume Snapshot" %}{% endblock %}
+
+{% block page_header %}
+  {% include "horizon/common/_page_header.html" with title=_("Create a Volume Snapshot") %}
+{% endblock page_header %}
+
+{% block dash_main %}
+    {% include 'nova/instances_and_volumes/volumes/_create_snapshot.html' %}
+{% endblock %}

horizon/horizon/test.py

@@ -170,7 +170,9 @@ class BaseViewTests(TestCase):
     Base class for view based unit tests.
     """
     def assertRedirectsNoFollow(self, response, expected_url):
-        self.assertEqual(response._headers['location'],
+        if response.status_code / 100 != 3:
+            assert("The response did not return a redirect.")
+        self.assertEqual(response._headers.get('location', None),
                          ('Location', settings.TESTSERVER + expected_url))
         self.assertEqual(response.status_code, 302)