From 3d6e5d82e6cf70ae6e11c66d3e8ccadaccf93987 Mon Sep 17 00:00:00 2001 From: Salvatore Orlando Date: Tue, 8 Mar 2011 18:20:20 +0000 Subject: Removes VDIs from XenServer backend if spawn process fails before vm rec is created. Fixed pep8 errors. --- nova/virt/xenapi/vm_utils.py | 189 ++++++++++++--------- nova/virt/xenapi/vmops.py | 126 ++++++++++---- plugins/xenserver/xenapi/etc/xapi.d/plugins/glance | 15 +- 3 files changed, 214 insertions(+), 116 deletions(-) diff --git a/nova/virt/xenapi/vm_utils.py b/nova/virt/xenapi/vm_utils.py index a6de3c9aa..0baeac8ed 100644 --- a/nova/virt/xenapi/vm_utils.py +++ b/nova/virt/xenapi/vm_utils.py @@ -61,17 +61,19 @@ KERNEL_DIR = '/boot/guest' class ImageType: """ Enumeration class for distinguishing different image types - 0 - kernel/ramdisk image (goes on dom0's filesystem) - 1 - disk image (local SR, partitioned by objectstore plugin) - 2 - raw disk image (local SR, NOT partitioned by plugin) - 3 - vhd disk image (local SR, NOT inspected by XS, PV assumed for + 0 - kernel image (goes on dom0's filesystem) + 1 - ramdisk image (goes on dom0's filesystem) + 2 - disk image (local SR, partitioned by objectstore plugin) + 3 - raw disk image (local SR, NOT partitioned by plugin) + 4 - vhd disk image (local SR, NOT inspected by XS, PV assumed for linux, HVM assumed for Windows) """ - KERNEL_RAMDISK = 0 - DISK = 1 - DISK_RAW = 2 - DISK_VHD = 3 + KERNEL = 0 + RAMDISK = 1 + DISK = 2 + DISK_RAW = 3 + DISK_VHD = 4 class VMHelper(HelperBase): @@ -212,6 +214,15 @@ class VMHelper(HelperBase): LOG.exception(exc) raise StorageError(_('Unable to destroy VBD %s') % vbd_ref) + @classmethod + def destroy_vdi(cls, session, vdi_ref): + try: + task = session.call_xenapi('Async.VDI.destroy', vdi_ref) + session.wait_for_task(task) + except cls.XenAPI.Failure, exc: + LOG.exception(exc) + raise StorageError(_('Unable to destroy VDI %s') % vdi_ref) + @classmethod def create_vif(cls, session, vm_ref, network_ref, mac_address, dev="0"): """Create a VIF record. Returns a Deferred that gives the new @@ -329,34 +340,42 @@ class VMHelper(HelperBase): image_type): LOG.debug(_("Asking xapi to fetch vhd image %(image)s") % locals()) - - sr_ref = safe_find_sr(session) - - # NOTE(sirp): The Glance plugin runs under Python 2.4 which does not - # have the `uuid` module. To work around this, we generate the uuids - # here (under Python 2.6+) and pass them as arguments - uuid_stack = [str(uuid.uuid4()) for i in xrange(2)] - - params = {'image_id': image, - 'glance_host': FLAGS.glance_host, - 'glance_port': FLAGS.glance_port, - 'uuid_stack': uuid_stack, - 'sr_path': get_sr_path(session)} - - kwargs = {'params': pickle.dumps(params)} - task = session.async_call_plugin('glance', 'download_vhd', kwargs) - vdi_uuid = session.wait_for_task(task, instance_id) - - scan_sr(session, instance_id, sr_ref) - - # Set the name-label to ease debugging - vdi_ref = session.get_xenapi().VDI.get_by_uuid(vdi_uuid) - name_label = get_name_label_for_image(image) - session.get_xenapi().VDI.set_name_label(vdi_ref, name_label) - - LOG.debug(_("xapi 'download_vhd' returned VDI UUID %(vdi_uuid)s") - % locals()) - return vdi_uuid + try: + sr_ref = safe_find_sr(session) + + # NOTE(sirp): The Glance plugin runs under Python 2.4 which + # does not have the `uuid` module. To work around this, we + # generate the uuids here (under Python 2.6+) and pass them + # as arguments + uuid_stack = [str(uuid.uuid4()) for i in xrange(2)] + + params = {'image_id': image, + 'glance_host': FLAGS.glance_host, + 'glance_port': FLAGS.glance_port, + 'uuid_stack': uuid_stack, + 'sr_path': get_sr_path(session)} + + kwargs = {'params': pickle.dumps(params)} + task = session.async_call_plugin('glance', 'download_vhd', kwargs) + vdi_uuid = session.wait_for_task(task, instance_id) + + scan_sr(session, instance_id, sr_ref) + + # Set the name-label to ease debugging + vdi_ref = session.get_xenapi().VDI.get_by_uuid(vdi_uuid) + name_label = get_name_label_for_image(image) + session.get_xenapi().VDI.set_name_label(vdi_ref, name_label) + + LOG.debug(_("xapi 'download_vhd' returned VDI UUID %(vdi_uuid)s") + % locals()) + return vdi_uuid + except BaseException as e: + try: + vdi_uuid = session.get_xenapi().VDI.get_uuid(vdi) + e.args = e.args + ({image_type: vdi_uuid},) + except: + pass # ignore failures in retrieving VDI + raise e @classmethod def _fetch_image_glance_disk(cls, session, instance_id, image, access, @@ -372,42 +391,53 @@ class VMHelper(HelperBase): # FIXME(sirp): Since the Glance plugin seems to be required for the # VHD disk, it may be worth using the plugin for both VHD and RAW and # DISK restores - sr_ref = safe_find_sr(session) - - client = glance.client.Client(FLAGS.glance_host, FLAGS.glance_port) - meta, image_file = client.get_image(image) - virtual_size = int(meta['size']) - vdi_size = virtual_size - LOG.debug(_("Size for image %(image)s:%(virtual_size)d") % locals()) - - if image_type == ImageType.DISK: - # Make room for MBR. - vdi_size += MBR_SIZE_BYTES - - name_label = get_name_label_for_image(image) - vdi = cls.create_vdi(session, sr_ref, name_label, vdi_size, False) - - with_vdi_attached_here(session, vdi, False, - lambda dev: - _stream_disk(dev, image_type, - virtual_size, image_file)) - if image_type == ImageType.KERNEL_RAMDISK: - #we need to invoke a plugin for copying VDI's - #content into proper path - LOG.debug(_("Copying VDI %s to /boot/guest on dom0"), vdi) - fn = "copy_kernel_vdi" - args = {} - args['vdi-ref'] = vdi - #let the plugin copy the correct number of bytes - args['image-size'] = str(vdi_size) - task = session.async_call_plugin('glance', fn, args) - filename = session.wait_for_task(task, instance_id) - #remove the VDI as it is not needed anymore - session.get_xenapi().VDI.destroy(vdi) - LOG.debug(_("Kernel/Ramdisk VDI %s destroyed"), vdi) - return filename - else: - return session.get_xenapi().VDI.get_uuid(vdi) + LOG.debug(_("Fetching image %(image)s") % locals()) + try: + sr_ref = safe_find_sr(session) + + client = glance.client.Client(FLAGS.glance_host, FLAGS.glance_port) + meta, image_file = client.get_image(image) + virtual_size = int(meta['size']) + vdi_size = virtual_size + LOG.debug(_("Size for image %(image)s:" + + "%(virtual_size)d") % locals()) + + if image_type == ImageType.DISK: + # Make room for MBR. + vdi_size += MBR_SIZE_BYTES + + name_label = get_name_label_for_image(image) + vdi = cls.create_vdi(session, sr_ref, name_label, vdi_size, False) + + with_vdi_attached_here(session, vdi, False, + lambda dev: + _stream_disk(dev, image_type, + virtual_size, image_file)) + if image_type in (ImageType.KERNEL, ImageType.RAMDISK): + #we need to invoke a plugin for copying VDI's + #content into proper path + LOG.debug(_("Copying VDI %s to /boot/guest on dom0"), vdi) + fn = "copy_kernel_vdi" + args = {} + args['vdi-ref'] = vdi + #let the plugin copy the correct number of bytes + args['image-size'] = str(vdi_size) + task = session.async_call_plugin('glance', fn, args) + filename = session.wait_for_task(task, instance_id) + #remove the VDI as it is not needed anymore + session.get_xenapi().VDI.destroy(vdi) + LOG.debug(_("Kernel/Ramdisk VDI %s destroyed"), vdi) + return filename + else: + return session.get_xenapi().VDI.get_uuid(vdi) + except BaseException as e: + if vdi: + try: + vdi_uuid = session.get_xenapi().VDI.get_uuid(vdi) + e.args = e.args + ({image_type: vdi_uuid},) + except: + pass # ignore failures in retrieving VDI + raise e @classmethod def determine_disk_image_type(cls, instance): @@ -422,7 +452,8 @@ class VMHelper(HelperBase): whether a kernel_id is specified. """ def log_disk_format(image_type): - pretty_format = {ImageType.KERNEL_RAMDISK: 'KERNEL_RAMDISK', + pretty_format = {ImageType.KERNEL: 'KERNEL', + ImageType.RAMDISK: 'RAMDISK', ImageType.DISK: 'DISK', ImageType.DISK_RAW: 'DISK_RAW', ImageType.DISK_VHD: 'DISK_VHD'} @@ -436,8 +467,8 @@ class VMHelper(HelperBase): glance_type2nova_type = {'machine': ImageType.DISK, 'raw': ImageType.DISK_RAW, 'vhd': ImageType.DISK_VHD, - 'kernel': ImageType.KERNEL_RAMDISK, - 'ramdisk': ImageType.KERNEL_RAMDISK} + 'kernel': ImageType.KERNEL, + 'ramdisk': ImageType.RAMDISK} client = glance.client.Client(FLAGS.glance_host, FLAGS.glance_port) meta = client.get_image_meta(instance.image_id) type_ = meta['type'] @@ -478,7 +509,7 @@ class VMHelper(HelperBase): secret, image_type): url = images.image_url(image) LOG.debug(_("Asking xapi to fetch %(url)s as %(access)s") % locals()) - if image_type == ImageType.KERNEL_RAMDISK: + if image_type in (ImageType.KERNEL, ImageType.RAMDISK): fn = 'get_kernel' else: fn = 'get_vdi' @@ -488,7 +519,7 @@ class VMHelper(HelperBase): args['password'] = secret args['add_partition'] = 'false' args['raw'] = 'false' - if image_type != ImageType.KERNEL_RAMDISK: + if not image_type in (ImageType.KERNEL, ImageType.RAMDISK): args['add_partition'] = 'true' if image_type == ImageType.DISK_RAW: args['raw'] = 'true' @@ -889,8 +920,8 @@ def _write_partition(virtual_size, dev): process_input=process_input, check_exit_code=check_exit_code) - execute('parted --script %s mklabel msdos' % dest) - execute('parted --script %s mkpart primary %ds %ds' % + execute('sudo parted --script %s mklabel msdos' % dest) + execute('sudo parted --script %s mkpart primary %ds %ds' % (dest, primary_first, primary_last)) LOG.debug(_('Writing partition table %s done.'), dest) diff --git a/nova/virt/xenapi/vmops.py b/nova/virt/xenapi/vmops.py index 9ac83efb0..69242be4c 100644 --- a/nova/virt/xenapi/vmops.py +++ b/nova/virt/xenapi/vmops.py @@ -25,6 +25,7 @@ import os import subprocess import tempfile import uuid +import sys from nova import db from nova import context @@ -82,36 +83,91 @@ class VMOps(object): project = AuthManager().get_project(instance.project_id) disk_image_type = VMHelper.determine_disk_image_type(instance) - - vdi_uuid = VMHelper.fetch_image(self._session, instance.id, - instance.image_id, user, project, disk_image_type) - - vdi_ref = self._session.call_xenapi('VDI.get_by_uuid', vdi_uuid) - - pv_kernel = False - if disk_image_type == ImageType.DISK_RAW: - #Have a look at the VDI and see if it has a PV kernel - pv_kernel = VMHelper.lookup_image(self._session, instance.id, - vdi_ref) - elif disk_image_type == ImageType.DISK_VHD: - # TODO(sirp): Assuming PV for now; this will need to be - # configurable as Windows will use HVM. - pv_kernel = True - + vdi_uuid = None + vdi_ref = None kernel = None - if instance.kernel_id: - kernel = VMHelper.fetch_image(self._session, instance.id, - instance.kernel_id, user, project, ImageType.KERNEL_RAMDISK) - ramdisk = None - if instance.ramdisk_id: - ramdisk = VMHelper.fetch_image(self._session, instance.id, - instance.ramdisk_id, user, project, ImageType.KERNEL_RAMDISK) + try: + vdi_uuid = VMHelper.fetch_image(self._session, instance.id, + instance.image_id, user, project, disk_image_type) + vdi_ref = self._session.call_xenapi('VDI.get_by_uuid', vdi_uuid) + + pv_kernel = False + if disk_image_type == ImageType.DISK_RAW: + #Have a look at the VDI and see if it has a PV kernel + pv_kernel = VMHelper.lookup_image(self._session, instance.id, + vdi_ref) + elif disk_image_type == ImageType.DISK_VHD: + # TODO(sirp): Assuming PV for now; this will need to be + # configurable as Windows will use HVM. + pv_kernel = True + + if instance.kernel_id: + kernel = VMHelper.fetch_image(self._session, instance.id, + instance.kernel_id, user, project, + ImageType.KERNEL) + + if instance.ramdisk_id: + ramdisk = VMHelper.fetch_image(self._session, instance.id, + instance.ramdisk_id, user, project, + ImageType.RAMDISK) + + vm_ref = VMHelper.create_vm(self._session, + instance, kernel, ramdisk, pv_kernel) + except BaseException as spawn_error: + + def _vdi_uuid(filename): + #Note: we assume the file name is the same as + #the uuid of the VDI. If this changes in + #_copy_kernel_vdi (glance plugin) + #this function must be updated accordingly + splits = filename.split('/') + n_splits = len(splits) + if n_splits > 0: + return splits[n_splits - 1] + return None + + LOG.exception(_("instance %s: Failed to spawn"), + instance.id, exc_info=sys.exc_info()) + LOG.debug(_('Instance %s failed to spawn - performing clean-up'), + instance.id) + vdis = {} + if vdi_uuid: + vdis[ImageType.DISK] = vdi_uuid + vdis[ImageType.KERNEL] = kernel and _vdi_uuid(kernel) or None + vdis[ImageType.RAMDISK] = ramdisk and _vdi_uuid(ramdisk) or None + #extract VDI uuid from spawn error + if len(spawn_error.args) > 0: + last_arg = spawn_error.args[len(spawn_error.args) - 1] + if isinstance(last_arg, dict): + for item in last_arg: + vdis[item] = last_arg[item] + LOG.debug(_("VDIS to remove:%s"), vdis) + remove_from_dom0 = False + for vdi_type in vdis: + vdi_uuid = vdis[vdi_type] + if vdi_type in (ImageType.KERNEL, ImageType.RAMDISK): + remove_from_dom0 = True + try: + vdi_ref = self._session.call_xenapi('VDI.get_by_uuid', + vdi_uuid) + LOG.debug(_('Removing VDI %(vdi_ref)s' + + '(uuid:%(vdi_uuid)s)'), + locals()) + except: + #vdi already deleted + LOG.debug(_("Skipping VDI destroy for %s"), vdi_uuid) + continue + VMHelper.destroy_vdi(self._session, vdi_ref) + if remove_from_dom0: + LOG.debug(_("Removing kernel/ramdisk files from dom0")) + self._destroy_kernel_ramdisk_plugin_call( + vdis[ImageType.KERNEL], vdis[ImageType.RAMDISK]) + + #re-throw the error + raise spawn_error - vm_ref = VMHelper.create_vm(self._session, - instance, kernel, ramdisk, pv_kernel) VMHelper.create_vbd(self._session, vm_ref, vdi_ref, 0, True) - # inject_network_info and create vifs networks = self.inject_network_info(instance) self.create_vifs(instance, networks) @@ -378,6 +434,16 @@ class VMOps(object): except self.XenAPI.Failure, exc: LOG.exception(exc) + def _destroy_kernel_ramdisk_plugin_call(self, kernel, ramdisk): + args = {} + if kernel: + args['kernel-uuid'] = kernel + if ramdisk: + args['ramdisk-uuid'] = ramdisk + task = self._session.async_call_plugin( + 'glance', 'remove_kernel_ramdisk', args) + self._session.wait_for_task(task) + def _destroy_kernel_ramdisk(self, instance, vm): """ Three situations can occur: @@ -408,13 +474,7 @@ class VMOps(object): (kernel, ramdisk) = VMHelper.lookup_kernel_ramdisk( self._session, vm) - LOG.debug(_("Removing kernel/ramdisk files")) - - args = {'kernel-file': kernel, 'ramdisk-file': ramdisk} - task = self._session.async_call_plugin( - 'glance', 'remove_kernel_ramdisk', args) - self._session.wait_for_task(task, instance.id) - + self._destroy_kernel_ramdisk_plugin_call(kernel, ramdisk) LOG.debug(_("kernel/ramdisk files removed")) def _destroy_vm(self, instance, vm): diff --git a/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance b/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance index aa12d432a..4251461ae 100644 --- a/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance +++ b/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance @@ -351,18 +351,25 @@ def copy_kernel_vdi(session, args): _copy_kernel_vdi('/dev/%s' % dev, copy_args)) return filename - + def remove_kernel_ramdisk(session, args): """Removes kernel and/or ramdisk from dom0's file system""" - kernel_file = exists(args, 'kernel-file') - ramdisk_file = exists(args, 'ramdisk-file') + kernel_file = optional(args, 'kernel-file') + ramdisk_file = optional(args, 'ramdisk-file') if kernel_file: os.remove(kernel_file) + else: + kernel_uuid = optional(args, 'kernel-uuid') + if kernel_uuid: + os.remove(KERNEL_DIR + '/' + kernel_uuid) if ramdisk_file: os.remove(ramdisk_file) + else: + ramdisk_uuid = optional(args, 'ramdisk-uuid') + if ramdisk_uuid: + os.remove(KERNEL_DIR + '/' + ramdisk_uuid) return "ok" - if __name__ == '__main__': XenAPIPlugin.dispatch({'upload_vhd': upload_vhd, 'download_vhd': download_vhd, -- cgit From 6e269b1e0b9c768b0977be140c48cc5229564177 Mon Sep 17 00:00:00 2001 From: Salvatore Orlando Date: Wed, 9 Mar 2011 11:12:24 +0000 Subject: Added unit tests for ensuring VDI are cleaned up upon spawn failures --- nova/tests/test_xenapi.py | 30 ++++++++++++++++++++++++++++++ nova/tests/xenapi/stubs.py | 23 +++++++++++++++++++++++ 2 files changed, 53 insertions(+) diff --git a/nova/tests/test_xenapi.py b/nova/tests/test_xenapi.py index 106c0bd6f..7e57dd7d4 100644 --- a/nova/tests/test_xenapi.py +++ b/nova/tests/test_xenapi.py @@ -251,6 +251,16 @@ class XenAPIVMTestCase(test.TestCase): # Check that the VM is running according to XenAPI. self.assertEquals(vm['power_state'], 'Running') + def _check_no_unbound_vdi(self): + url = FLAGS.xenapi_connection_url + username = FLAGS.xenapi_connection_username + password = FLAGS.xenapi_connection_password + session = xenapi_conn.XenAPISession(url, username, password) + vdi_refs = session.call_xenapi('VDI.get_all') + for vdi_ref in vdi_refs: + vdi_rec = session.call_xenapi('VDI.get_record', vdi_ref) + self.assertEquals(vdi_rec['VBDs'], {}) + def _test_spawn(self, image_id, kernel_id, ramdisk_id, instance_type="m1.large"): stubs.stubout_session(self.stubs, stubs.FakeSessionForVMTests) @@ -275,6 +285,26 @@ class XenAPIVMTestCase(test.TestCase): self._test_spawn, 1, 2, 3, "m1.xlarge") + def test_spawn_fail_cleanup_1(self): + """Simulates an error while downloading image + Verifies VDI create are properly cleaned up""" + FLAGS.xenapi_image_service = 'glance' + stubs.stubout_fetch_image_glance_disk(self.stubs) + self.assertRaises(Exception, + self._test_spawn, 1, 2, 3) + #ensure there is no VDI without a VBD + self._check_no_unbound_vdi() + + def test_spawn_fail_cleanup_2(self): + """Simulates an error while creating VM record. + Verifies VDI create are properly cleaned up""" + FLAGS.xenapi_image_service = 'glance' + stubs.stubout_create_vm(self.stubs) + self.assertRaises(Exception, + self._test_spawn, 1, 2, 3) + #ensure there is no VDI without a VBD + self._check_no_unbound_vdi() + def test_spawn_raw_objectstore(self): FLAGS.xenapi_image_service = 'objectstore' self._test_spawn(1, None, None) diff --git a/nova/tests/xenapi/stubs.py b/nova/tests/xenapi/stubs.py index 3de73d617..285cf2d53 100644 --- a/nova/tests/xenapi/stubs.py +++ b/nova/tests/xenapi/stubs.py @@ -136,6 +136,29 @@ def stubout_is_vdi_pv(stubs): stubs.Set(vm_utils, '_is_vdi_pv', f) +def stubout_lookup_image(stubs): + """Simulates a failure in lookup image""" + def f(_1, _2, _3, _4): + raise Exception("Test Exception raised by fake lookup_image") + stubs.Set(vm_utils, 'lookup_image', f) + + +def stubout_fetch_image_glance_disk(stubs): + """Simulates a failure in fetch image_glance_disk""" + def f(_1, _2, _3, _4, _5, _6): + raise Exception("Test Exception raised by " + + "fake fetch_image_glance_disk") + stubs.Set(vm_utils.VMHelper, '_fetch_image_glance_disk', f) + + +def stubout_create_vm(stubs): + """Simulates a failure in create_vm""" + def f(_1, _2, _3, _4, _5, _6): + raise Exception("Test Exception raised by " + + "fake create_vm") + stubs.Set(vm_utils.VMHelper, 'create_vm', f) + + class FakeSessionForVMTests(fake.SessionBase): """ Stubs out a XenAPISession for VM tests """ def __init__(self, uri): -- cgit From 748b3102320a9de3444b067aa783e8f3d7bc5f5c Mon Sep 17 00:00:00 2001 From: Salvatore Orlando Date: Wed, 9 Mar 2011 11:17:41 +0000 Subject: Fixed pep8 violation in glance plugin --- plugins/xenserver/xenapi/etc/xapi.d/plugins/glance | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance b/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance index 4251461ae..13f974fb9 100644 --- a/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance +++ b/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance @@ -351,7 +351,7 @@ def copy_kernel_vdi(session, args): _copy_kernel_vdi('/dev/%s' % dev, copy_args)) return filename - + def remove_kernel_ramdisk(session, args): """Removes kernel and/or ramdisk from dom0's file system""" kernel_file = optional(args, 'kernel-file') -- cgit From 68dae00b7b1580c4b816058f748b272fe5e07c64 Mon Sep 17 00:00:00 2001 From: Salvatore Orlando Date: Mon, 14 Mar 2011 14:49:16 +0000 Subject: Fixed failing tests in test_xenapi --- nova/virt/xenapi/vm_utils.py | 6 +++--- nova/virt/xenapi/vmops.py | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/nova/virt/xenapi/vm_utils.py b/nova/virt/xenapi/vm_utils.py index 3ae91a4ef..53e402dd2 100644 --- a/nova/virt/xenapi/vm_utils.py +++ b/nova/virt/xenapi/vm_utils.py @@ -472,7 +472,7 @@ class VMHelper(HelperBase): lambda dev: _stream_disk(dev, image_type, virtual_size, image_file)) - if image_type == ImageType.KERNEL_RAMDISK: + if image_type in (ImageType.KERNEL,ImageType.RAMDISK): #we need to invoke a plugin for copying VDI's #content into proper path LOG.debug(_("Copying VDI %s to /boot/guest on dom0"), vdi_ref) @@ -490,9 +490,9 @@ class VMHelper(HelperBase): else: return session.get_xenapi().VDI.get_uuid(vdi_ref) except BaseException as e: - if vdi: + if vdi_ref: try: - vdi_uuid = session.get_xenapi().VDI.get_uuid(vdi) + vdi_uuid = session.get_xenapi().VDI.get_uuid(vdi_ref) e.args = e.args + ({image_type: vdi_uuid},) except: pass # ignore failures in retrieving VDI diff --git a/nova/virt/xenapi/vmops.py b/nova/virt/xenapi/vmops.py index 16374f7c2..8489a7216 100644 --- a/nova/virt/xenapi/vmops.py +++ b/nova/virt/xenapi/vmops.py @@ -159,7 +159,7 @@ class VMOps(object): ramdisk = None if instance.ramdisk_id: ramdisk = VMHelper.fetch_image(self._session, instance.id, - instance.ramdisk_id, user, project, ImageType.KERNEL_RAMDISK) + instance.ramdisk_id, user, project, ImageType.RAMDISK) use_pv_kernel = VMHelper.determine_is_pv(self._session, instance.id, vdi_ref, disk_image_type, instance.os_type) -- cgit From e2aed1036c0fb61a2924ffa28d66f87539d43ba1 Mon Sep 17 00:00:00 2001 From: Salvatore Orlando Date: Mon, 14 Mar 2011 14:52:19 +0000 Subject: Fixed pep8 errors --- nova/tests/db/fakes.py | 2 +- nova/tests/test_xenapi.py | 6 +++--- nova/virt/xenapi/vm_utils.py | 8 ++++---- nova/virt/xenapi/vmops.py | 4 ++-- 4 files changed, 10 insertions(+), 10 deletions(-) diff --git a/nova/tests/db/fakes.py b/nova/tests/db/fakes.py index 142f6b1c6..22a60e012 100644 --- a/nova/tests/db/fakes.py +++ b/nova/tests/db/fakes.py @@ -77,7 +77,7 @@ def stub_out_db_instance_api(stubs): 'mac_address': values['mac_address'], 'vcpus': type_data['vcpus'], 'local_gb': type_data['local_gb'], - 'os_type': values['os_type'] + 'os_type': values['os_type'], } return FakeModel(base_options) diff --git a/nova/tests/test_xenapi.py b/nova/tests/test_xenapi.py index 60ef39cbb..7119f3078 100644 --- a/nova/tests/test_xenapi.py +++ b/nova/tests/test_xenapi.py @@ -78,7 +78,7 @@ class XenAPIVolumeTestCase(test.TestCase): 'ramdisk_id': 3, 'instance_type': 'm1.large', 'mac_address': 'aa:bb:cc:dd:ee:ff', - 'os_type': 'linux' + 'os_type': 'linux', } def _create_volume(self, size='0'): @@ -328,7 +328,7 @@ class XenAPIVMTestCase(test.TestCase): 'ramdisk_id': ramdisk_id, 'instance_type': instance_type, 'mac_address': 'aa:bb:cc:dd:ee:ff', - 'os_type': os_type + 'os_type': os_type, } conn = xenapi_conn.get_connection(False) instance = db.instance_create(values) @@ -473,7 +473,7 @@ class XenAPIMigrateInstance(test.TestCase): 'ramdisk_id': None, 'instance_type': 'm1.large', 'mac_address': 'aa:bb:cc:dd:ee:ff', - 'os_type': 'linux' + 'os_type': 'linux', } stubs.stub_out_migration_methods(self.stubs) glance_stubs.stubout_glance_client(self.stubs, diff --git a/nova/virt/xenapi/vm_utils.py b/nova/virt/xenapi/vm_utils.py index 53e402dd2..1dad29736 100644 --- a/nova/virt/xenapi/vm_utils.py +++ b/nova/virt/xenapi/vm_utils.py @@ -138,7 +138,7 @@ class VMHelper(HelperBase): 'VCPUs_at_startup': vcpus, 'VCPUs_max': vcpus, 'VCPUs_params': {}, - 'xenstore_data': {} + 'xenstore_data': {}, } # Complete VM configuration record according to the image type @@ -465,14 +465,14 @@ class VMHelper(HelperBase): vdi_size += MBR_SIZE_BYTES name_label = get_name_label_for_image(image) - vdi_ref = cls.create_vdi(session, sr_ref, name_label, + vdi_ref = cls.create_vdi(session, sr_ref, name_label, vdi_size, False) - + with_vdi_attached_here(session, vdi_ref, False, lambda dev: _stream_disk(dev, image_type, virtual_size, image_file)) - if image_type in (ImageType.KERNEL,ImageType.RAMDISK): + if image_type in (ImageType.KERNEL, ImageType.RAMDISK): #we need to invoke a plugin for copying VDI's #content into proper path LOG.debug(_("Copying VDI %s to /boot/guest on dom0"), vdi_ref) diff --git a/nova/virt/xenapi/vmops.py b/nova/virt/xenapi/vmops.py index 8489a7216..58ffff8fb 100644 --- a/nova/virt/xenapi/vmops.py +++ b/nova/virt/xenapi/vmops.py @@ -164,8 +164,8 @@ class VMOps(object): use_pv_kernel = VMHelper.determine_is_pv(self._session, instance.id, vdi_ref, disk_image_type, instance.os_type) try: - vm_ref = VMHelper.create_vm(self._session, instance, kernel, ramdisk, - use_pv_kernel) + vm_ref = VMHelper.create_vm(self._session, instance, + kernel, ramdisk, use_pv_kernel) except BaseException as vm_create_error: # if the spwan process fails here it will be necessary to # clean up kernel and ramdisk (VDIs and files in dom0) -- cgit From 7649a9af1fb04886a25124b92e6ba4f88c1fd0b0 Mon Sep 17 00:00:00 2001 From: Salvatore Orlando Date: Thu, 17 Mar 2011 11:19:03 +0000 Subject: Improved exception handling: - catching appropriate errors (OSError, IOError, XenAPI.Failure) - reduced size of try blocks - moved exception handling code in separate method - verifing for appropriate exeception type in unit tests --- nova/tests/test_xenapi.py | 4 +- nova/tests/xenapi/stubs.py | 16 +++++--- nova/virt/xenapi/vm_utils.py | 94 ++++++++++++++++++++++---------------------- nova/virt/xenapi/vmops.py | 74 +++++++++++++++++----------------- 4 files changed, 96 insertions(+), 92 deletions(-) diff --git a/nova/tests/test_xenapi.py b/nova/tests/test_xenapi.py index a65aecf6b..8a8b13933 100644 --- a/nova/tests/test_xenapi.py +++ b/nova/tests/test_xenapi.py @@ -346,7 +346,7 @@ class XenAPIVMTestCase(test.TestCase): Verifies VDI create are properly cleaned up""" FLAGS.xenapi_image_service = 'glance' stubs.stubout_fetch_image_glance_disk(self.stubs) - self.assertRaises(Exception, + self.assertRaises(xenapi_fake.Failure, self._test_spawn, 1, 2, 3) #ensure there is no VDI without a VBD self._check_no_unbound_vdi() @@ -356,7 +356,7 @@ class XenAPIVMTestCase(test.TestCase): Verifies VDI create are properly cleaned up""" FLAGS.xenapi_image_service = 'glance' stubs.stubout_create_vm(self.stubs) - self.assertRaises(Exception, + self.assertRaises(xenapi_fake.Failure, self._test_spawn, 1, 2, 3) #ensure there is no VDI without a VBD self._check_no_unbound_vdi() diff --git a/nova/tests/xenapi/stubs.py b/nova/tests/xenapi/stubs.py index 6d050db04..924cecf2c 100644 --- a/nova/tests/xenapi/stubs.py +++ b/nova/tests/xenapi/stubs.py @@ -146,17 +146,21 @@ def stubout_lookup_image(stubs): def stubout_fetch_image_glance_disk(stubs): """Simulates a failure in fetch image_glance_disk""" - def f(_1, _2, _3, _4, _5, _6): - raise Exception("Test Exception raised by " + - "fake fetch_image_glance_disk") + + @classmethod + def f(cls, *args): + raise fake.Failure("Test Exception raised by " + + "fake fetch_image_glance_disk") stubs.Set(vm_utils.VMHelper, '_fetch_image_glance_disk', f) def stubout_create_vm(stubs): """Simulates a failure in create_vm""" - def f(_1, _2, _3, _4, _5, _6): - raise Exception("Test Exception raised by " + - "fake create_vm") + + @classmethod + def f(cls, *args): + raise fake.Failure("Test Exception raised by " + + "fake create_vm") stubs.Set(vm_utils.VMHelper, 'create_vm', f) diff --git a/nova/virt/xenapi/vm_utils.py b/nova/virt/xenapi/vm_utils.py index 211166db2..a7337e38b 100644 --- a/nova/virt/xenapi/vm_utils.py +++ b/nova/virt/xenapi/vm_utils.py @@ -397,24 +397,26 @@ class VMHelper(HelperBase): image_type): LOG.debug(_("Asking xapi to fetch vhd image %(image)s") % locals()) - try: - sr_ref = safe_find_sr(session) + sr_ref = safe_find_sr(session) - # NOTE(sirp): The Glance plugin runs under Python 2.4 - # which does not have the `uuid` module. To work around this, - # we generate the uuids here (under Python 2.6+) and - # pass them as arguments - uuid_stack = [str(uuid.uuid4()) for i in xrange(2)] + # NOTE(sirp): The Glance plugin runs under Python 2.4 + # which does not have the `uuid` module. To work around this, + # we generate the uuids here (under Python 2.6+) and + # pass them as arguments + uuid_stack = [str(uuid.uuid4()) for i in xrange(2)] - params = {'image_id': image, - 'glance_host': FLAGS.glance_host, - 'glance_port': FLAGS.glance_port, - 'uuid_stack': uuid_stack, - 'sr_path': cls.get_sr_path(session)} + params = {'image_id': image, + 'glance_host': FLAGS.glance_host, + 'glance_port': FLAGS.glance_port, + 'uuid_stack': uuid_stack, + 'sr_path': cls.get_sr_path(session)} - kwargs = {'params': pickle.dumps(params)} - task = session.async_call_plugin('glance', 'download_vhd', kwargs) - vdi_uuid = session.wait_for_task(task, instance_id) + kwargs = {'params': pickle.dumps(params)} + task = session.async_call_plugin('glance', 'download_vhd', kwargs) + vdi_uuid = session.wait_for_task(task, instance_id) + #from this point we have a VDI on Xen host + #if anything goes wrong, we need to remember its uuid + try: cls.scan_sr(session, instance_id, sr_ref) @@ -426,14 +428,11 @@ class VMHelper(HelperBase): LOG.debug(_("xapi 'download_vhd' returned VDI UUID %(vdi_uuid)s") % locals()) return vdi_uuid - except BaseException as e: + except cls.XenAPI.Failure as e: + #Looking for XenAPI failures only LOG.exception(_("instance %s: Failed to fetch glance image"), instance_id, exc_info=sys.exc_info()) - try: - vdi_uuid = session.get_xenapi().VDI.get_uuid(vdi) - e.args = e.args + ({image_type: vdi_uuid},) - except: - pass # ignore failures in retrieving VDI + e.args = e.args + ({image_type: vdi_uuid},) raise e @classmethod @@ -451,24 +450,25 @@ class VMHelper(HelperBase): # VHD disk, it may be worth using the plugin for both VHD and RAW and # DISK restores LOG.debug(_("Fetching image %(image)s") % locals()) - try: - sr_ref = safe_find_sr(session) - - client = glance.client.Client(FLAGS.glance_host, FLAGS.glance_port) - meta, image_file = client.get_image(image) - virtual_size = int(meta['size']) - vdi_size = virtual_size - LOG.debug(_("Size for image %(image)s:" + - "%(virtual_size)d") % locals()) - - if image_type == ImageType.DISK: - # Make room for MBR. - vdi_size += MBR_SIZE_BYTES - - name_label = get_name_label_for_image(image) - vdi_ref = cls.create_vdi(session, sr_ref, name_label, - vdi_size, False) + sr_ref = safe_find_sr(session) + client = glance.client.Client(FLAGS.glance_host, FLAGS.glance_port) + meta, image_file = client.get_image(image) + virtual_size = int(meta['size']) + vdi_size = virtual_size + LOG.debug(_("Size for image %(image)s:" + + "%(virtual_size)d") % locals()) + + if image_type == ImageType.DISK: + # Make room for MBR. + vdi_size += MBR_SIZE_BYTES + + name_label = get_name_label_for_image(image) + vdi_ref = cls.create_vdi(session, sr_ref, name_label, + vdi_size, False) + #from this point we have a VDI on Xen host + #if anything goes wrong, we need to remember its uuid + try: with_vdi_attached_here(session, vdi_ref, False, lambda dev: _stream_disk(dev, image_type, @@ -490,24 +490,22 @@ class VMHelper(HelperBase): return filename else: return session.get_xenapi().VDI.get_uuid(vdi_ref) - except BaseException as e: + except (cls.XenAPI.Failure, IOError, OSError) as e: + #Looking for XenAPI and OS failures LOG.exception(_("instance %s: Failed to fetch glance image"), instance_id, exc_info=sys.exc_info()) if vdi_ref: try: vdi_uuid = session.get_xenapi().VDI.get_uuid(vdi_ref) e.args = e.args + ({image_type: vdi_uuid},) - except: + except cls.XenAPI.Failure: pass # ignore failures in retrieving VDI if filename: - try: - splits = filename.split("/") - if len(splits) > 0: - vdi_uuid = splits[len(splits) - 1] - e.args = e.args + ({image_type: vdi_uuid},) - except: - pass # ignore errors parsing file name - + splits = filename.split("/") + #split always return at least the original string + if splits[len(splits) - 1] != None: + vdi_uuid = splits[len(splits) - 1] + e.args = e.args + ({image_type: vdi_uuid},) raise e @classmethod diff --git a/nova/virt/xenapi/vmops.py b/nova/virt/xenapi/vmops.py index 1c48f1bd7..db76421db 100644 --- a/nova/virt/xenapi/vmops.py +++ b/nova/virt/xenapi/vmops.py @@ -87,46 +87,13 @@ class VMOps(object): vdi_uuid = disk_image_type = None (vdi_uuid, disk_image_type) = self.create_disk(instance) self._spawn_with_disk(instance, vdi_uuid=vdi_uuid) - except BaseException as spawn_error: + except (self.XenAPI.Failure, OSError, IOError) as spawn_error: LOG.exception(_("instance %s: Failed to spawn"), instance.id, exc_info=sys.exc_info()) LOG.debug(_('Instance %s failed to spawn - performing clean-up'), instance.id) - vdis = { - ImageType.KERNEL: None, - ImageType.RAMDISK: None, - } - if vdi_uuid: - vdis[disk_image_type] = vdi_uuid - #extract VDI uuid from spawn error - if len(spawn_error.args) > 0: - last_arg = spawn_error.args[len(spawn_error.args) - 1] - if isinstance(last_arg, dict): - for item in last_arg: - vdis[item] = last_arg[item] - LOG.debug(_("VDIS to remove:%s"), vdis) - remove_from_dom0 = False - for vdi_type in vdis: - vdi_to_remove = vdis[vdi_type] - if vdi_type in (ImageType.KERNEL, ImageType.RAMDISK): - remove_from_dom0 = True - try: - vdi_ref = self._session.call_xenapi('VDI.get_by_uuid', - vdi_to_remove) - LOG.debug(_('Removing VDI %(vdi_ref)s' + - '(uuid:%(vdi_to_remove)s)'), locals()) - except: - #vdi already deleted - LOG.debug(_("Skipping VDI destroy for %s"), vdi_to_remove) - continue - VMHelper.destroy_vdi(self._session, vdi_ref) - if remove_from_dom0: - LOG.debug(_("Removing kernel/ramdisk files from dom0")) - self._destroy_kernel_ramdisk_plugin_call( - vdis[ImageType.KERNEL], vdis[ImageType.RAMDISK], - False) - + self._handle_spawn_error(vdi_uuid, disk_image_type, spawn_error) #re-throw the error raise spawn_error @@ -170,7 +137,7 @@ class VMOps(object): try: vm_ref = VMHelper.create_vm(self._session, instance, kernel, ramdisk, use_pv_kernel) - except BaseException as vm_create_error: + except self.XenAPI.Failure as vm_create_error: # if the spwan process fails here it will be necessary to # clean up kernel and ramdisk (VDIs and files in dom0) @@ -253,6 +220,41 @@ class VMOps(object): return timer.start(interval=0.5, now=True) + def _handle_spawn_error(self, vdi_uuid, disk_image_type, spawn_error): + vdis = { + ImageType.KERNEL: None, + ImageType.RAMDISK: None, + } + if vdi_uuid: + vdis[disk_image_type] = vdi_uuid + #extract VDI uuid from spawn error + if len(spawn_error.args) > 0: + last_arg = spawn_error.args[len(spawn_error.args) - 1] + if isinstance(last_arg, dict): + for item in last_arg: + vdis[item] = last_arg[item] + LOG.debug(_("VDIS to remove:%s"), vdis) + remove_from_dom0 = False + for vdi_type in vdis: + vdi_to_remove = vdis[vdi_type] + if vdi_type in (ImageType.KERNEL, ImageType.RAMDISK): + remove_from_dom0 = True + try: + vdi_ref = self._session.call_xenapi('VDI.get_by_uuid', + vdi_to_remove) + LOG.debug(_('Removing VDI %(vdi_ref)s' + + '(uuid:%(vdi_to_remove)s)'), locals()) + except: + #vdi already deleted + LOG.debug(_("Skipping VDI destroy for %s"), vdi_to_remove) + continue + VMHelper.destroy_vdi(self._session, vdi_ref) + if remove_from_dom0: + LOG.debug(_("Removing kernel/ramdisk files from dom0")) + self._destroy_kernel_ramdisk_plugin_call( + vdis[ImageType.KERNEL], vdis[ImageType.RAMDISK], + False) + def _get_vm_opaque_ref(self, instance_or_vm): """Refactored out the common code of many methods that receive either a vm name or a vm instance, and want a vm instance in return. -- cgit From 0174d584708f2e9b7fa02a27eeb707892eb213ec Mon Sep 17 00:00:00 2001 From: Salvatore Orlando Date: Fri, 18 Mar 2011 08:31:21 +0000 Subject: Ensuring kernel/ramdisk files are always removed in case of failures --- nova/virt/xenapi/vm_utils.py | 2 +- nova/virt/xenapi/vmops.py | 30 ++++++++++++++---------------- 2 files changed, 15 insertions(+), 17 deletions(-) diff --git a/nova/virt/xenapi/vm_utils.py b/nova/virt/xenapi/vm_utils.py index dd62c61f6..0610d5c11 100644 --- a/nova/virt/xenapi/vm_utils.py +++ b/nova/virt/xenapi/vm_utils.py @@ -469,8 +469,8 @@ class VMHelper(HelperBase): #from this point we have a VDI on Xen host #if anything goes wrong, we need to remember its uuid try: - vdi_uuid = session.get_xenapi().VDI.get_uuid(vdi_ref) filename = None + vdi_uuid = session.get_xenapi().VDI.get_uuid(vdi_ref) with_vdi_attached_here(session, vdi_ref, False, lambda dev: _stream_disk(dev, image_type, diff --git a/nova/virt/xenapi/vmops.py b/nova/virt/xenapi/vmops.py index 0d16bdc6a..e4701762f 100644 --- a/nova/virt/xenapi/vmops.py +++ b/nova/virt/xenapi/vmops.py @@ -136,30 +136,29 @@ class VMOps(object): ramdisk = VMHelper.fetch_image(self._session, instance.id, instance.ramdisk_id, user, project, ImageType.RAMDISK) - use_pv_kernel = VMHelper.determine_is_pv(self._session, instance.id, vdi_ref, disk_image_type, instance.os_type) - vm_ref = VMHelper.create_vm(self._session, instance, kernel, ramdisk, use_pv_kernel) - except self.XenAPI.Failure as vm_create_error: - # if the spawn process fails here it will be necessary to - # clean up kernel and ramdisk (only files in dom0) + except (self.XenAPI.Failure, OSError, IOError) as vm_create_error: + #collect resources to clean up + #_handle_spawn_error will remove unused resources LOG.exception(_("instance %s: Failed to spawn - " + "Unable to create VM"), instance.id, exc_info=sys.exc_info()) - last_arg = None resources = {} + if len(vm_create_error.args) > 0: last_arg = vm_create_error.args[len(vm_create_error.args) - 1] if isinstance(last_arg, dict): resources = last_arg + else: + vm_create_error.args = vm_create_error.args + (resources,) if ImageType.KERNEL not in resources and kernel: resources[ImageType.KERNEL] = (None, kernel) if ImageType.RAMDISK not in resources and ramdisk: resources[ImageType.RAMDISK] = (None, ramdisk) - vm_create_error.args = vm_create_error.args + (resources,) raise vm_create_error VMHelper.create_vbd(session=self._session, vm_ref=vm_ref, @@ -224,16 +223,15 @@ class VMOps(object): def _handle_spawn_error(self, vdi_uuid, disk_image_type, spawn_error): resources = {} - if vdi_uuid: - resources[disk_image_type] = (vdi_uuid,) + files_to_remove = {} #extract resource dictionary from spawn error if len(spawn_error.args) > 0: last_arg = spawn_error.args[len(spawn_error.args) - 1] - if isinstance(last_arg, dict): - for item in last_arg: - resources[item] = last_arg[item] - LOG.debug(_("resources to remove:%s"), resources) - files_to_remove = {} + resources = last_arg + if vdi_uuid: + resources[disk_image_type] = (vdi_uuid,) + LOG.debug(_("Resources to remove:%s"), resources) + for vdi_type in resources: items_to_remove = resources[vdi_type] vdi_to_remove = items_to_remove[0] @@ -243,14 +241,14 @@ class VMOps(object): vdi_to_remove) LOG.debug(_('Removing VDI %(vdi_ref)s' + '(uuid:%(vdi_to_remove)s)'), locals()) + VMHelper.destroy_vdi(self._session, vdi_ref) except self.XenAPI.Failure: #vdi already deleted LOG.debug(_("Skipping VDI destroy for %s"), vdi_to_remove) - continue - VMHelper.destroy_vdi(self._session, vdi_ref) if len(items_to_remove) > 1: # there is also a file to remove files_to_remove[vdi_type] = items_to_remove[1] + if len(files_to_remove) > 0: LOG.debug(_("Removing kernel/ramdisk files from dom0")) self._destroy_kernel_ramdisk_plugin_call( -- cgit From 381354babab58688458b2a6cdc463eb0a0fee461 Mon Sep 17 00:00:00 2001 From: Salvatore Orlando Date: Mon, 28 Mar 2011 13:11:45 +0100 Subject: addressed reviewers' concerns --- nova/tests/test_xenapi.py | 35 ++++++++++++---------- nova/tests/xenapi/stubs.py | 6 ++-- nova/virt/xenapi/vm_utils.py | 18 +++++++---- nova/virt/xenapi_conn.py | 7 ++--- plugins/xenserver/xenapi/etc/xapi.d/plugins/glance | 1 + 5 files changed, 38 insertions(+), 29 deletions(-) diff --git a/nova/tests/test_xenapi.py b/nova/tests/test_xenapi.py index 1c5a81f0d..feaced8ac 100644 --- a/nova/tests/test_xenapi.py +++ b/nova/tests/test_xenapi.py @@ -343,8 +343,10 @@ class XenAPIVMTestCase(test.TestCase): 1, 2, 3, "m1.xlarge") def test_spawn_fail_cleanup_1(self): - """Simulates an error while downloading image - Verifies VDI create are properly cleaned up""" + """ + Simulates an error while downloading image + Verifies VDI create are properly cleaned up. + """ FLAGS.xenapi_image_service = 'glance' stubs.stubout_fetch_image_glance_disk(self.stubs) self.assertRaises(xenapi_fake.Failure, @@ -353,8 +355,10 @@ class XenAPIVMTestCase(test.TestCase): self._check_no_unbound_vdi() def test_spawn_fail_cleanup_2(self): - """Simulates an error while creating VM record. - Verifies VDI create are properly cleaned up""" + """ + Simulates an error while creating VM record. It + verifies that VDI created are properly cleaned up. + """ FLAGS.xenapi_image_service = 'glance' stubs.stubout_create_vm(self.stubs) self.assertRaises(xenapi_fake.Failure, @@ -423,18 +427,17 @@ class XenAPIVMTestCase(test.TestCase): self.stubs.UnsetAll() def _create_instance(self): - """Creates and spawns a test instance""" - values = { - 'name': 1, - 'id': 1, - 'project_id': self.project.id, - 'user_id': self.user.id, - 'image_id': 1, - 'kernel_id': 2, - 'ramdisk_id': 3, - 'instance_type': 'm1.large', - 'mac_address': 'aa:bb:cc:dd:ee:ff', - 'os_type': 'linux'} + """Creates and spawns a test instance.""" + values = {'name': 1, + 'id': 1, + 'project_id': self.project.id, + 'user_id': self.user.id, + 'image_id': 1, + 'kernel_id': 2, + 'ramdisk_id': 3, + 'instance_type': 'm1.large', + 'mac_address': 'aa:bb:cc:dd:ee:ff', + 'os_type': 'linux'} instance = db.instance_create(values) self.conn.spawn(instance) return instance diff --git a/nova/tests/xenapi/stubs.py b/nova/tests/xenapi/stubs.py index 709a8b6ff..b745205f5 100644 --- a/nova/tests/xenapi/stubs.py +++ b/nova/tests/xenapi/stubs.py @@ -138,14 +138,14 @@ def stubout_is_vdi_pv(stubs): def stubout_lookup_image(stubs): - """Simulates a failure in lookup image""" + """Simulates a failure in lookup image.""" def f(_1, _2, _3, _4): raise Exception("Test Exception raised by fake lookup_image") stubs.Set(vm_utils, 'lookup_image', f) def stubout_fetch_image_glance_disk(stubs): - """Simulates a failure in fetch image_glance_disk""" + """Simulates a failure in fetch image_glance_disk.""" @classmethod def f(cls, *args): @@ -155,7 +155,7 @@ def stubout_fetch_image_glance_disk(stubs): def stubout_create_vm(stubs): - """Simulates a failure in create_vm""" + """Simulates a failure in create_vm.""" @classmethod def f(cls, *args): diff --git a/nova/virt/xenapi/vm_utils.py b/nova/virt/xenapi/vm_utils.py index 8abd19c3c..bcf2a9962 100644 --- a/nova/virt/xenapi/vm_utils.py +++ b/nova/virt/xenapi/vm_utils.py @@ -466,17 +466,23 @@ class VMHelper(HelperBase): vdi_size += MBR_SIZE_BYTES name_label = get_name_label_for_image(image) - vdi_ref = cls.create_vdi(session, sr_ref, name_label, - vdi_size, False) + vdi_ref = cls.create_vdi(session, + sr_ref, + name_label, + vdi_size, + False) # from this point we have a VDI on Xen host # if anything goes wrong, we need to remember its uuid try: filename = None vdi_uuid = session.get_xenapi().VDI.get_uuid(vdi_ref) - with_vdi_attached_here(session, vdi_ref, False, - lambda dev: - _stream_disk(dev, image_type, - virtual_size, image_file)) + with_vdi_attached_here(session, + vdi_ref, + False, + lambda dev: _stream_disk(dev, + image_type, + virtual_size, + image_file)) if image_type in (ImageType.KERNEL, ImageType.RAMDISK): # we need to invoke a plugin for copying VDI's # content into proper path diff --git a/nova/virt/xenapi_conn.py b/nova/virt/xenapi_conn.py index c7e94c508..191498916 100644 --- a/nova/virt/xenapi_conn.py +++ b/nova/virt/xenapi_conn.py @@ -367,10 +367,9 @@ class XenAPISession(object): try: name = self._session.xenapi.task.get_name_label(task) status = self._session.xenapi.task.get_status(task) - action = dict( - action=name[0:255], # Ensure action is never > 255 - instance_id=id and int(id) or None, - error=None) + action = dict(action=name[0:255], + instance_id=id and int(id) or None, + error=None) if status == "pending": return elif status == "success": diff --git a/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance b/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance index b12175845..1eed7e862 100644 --- a/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance +++ b/plugins/xenserver/xenapi/etc/xapi.d/plugins/glance @@ -374,6 +374,7 @@ def remove_kernel_ramdisk(session, args): os.remove(ramdisk_file) return "ok" + if __name__ == '__main__': XenAPIPlugin.dispatch({'upload_vhd': upload_vhd, 'download_vhd': download_vhd, -- cgit From e722689c7b82bbf895213c2ebf9afaf34f292662 Mon Sep 17 00:00:00 2001 From: Salvatore Orlando Date: Wed, 15 Jun 2011 12:31:20 +0100 Subject: Fixing code to ensure unit tests for objectstore, vhd & snapshots pass --- nova/tests/test_xenapi.py | 12 ++++++++++++ nova/tests/xenapi/stubs.py | 2 +- nova/virt/xenapi/vm_utils.py | 19 +++++++++++++------ nova/virt/xenapi/vmops.py | 6 ++++-- 4 files changed, 30 insertions(+), 9 deletions(-) diff --git a/nova/tests/test_xenapi.py b/nova/tests/test_xenapi.py index 7b6ceeb37..cddade0ce 100644 --- a/nova/tests/test_xenapi.py +++ b/nova/tests/test_xenapi.py @@ -350,6 +350,18 @@ class XenAPIVMTestCase(test.TestCase): self.assertEquals(self.vm['HVM_boot_params'], {}) self.assertEquals(self.vm['HVM_boot_policy'], '') + def _list_vdis(self): + url = FLAGS.xenapi_connection_url + username = FLAGS.xenapi_connection_username + password = FLAGS.xenapi_connection_password + session = xenapi_conn.XenAPISession(url, username, password) + return session.call_xenapi('VDI.get_all') + + def _check_vdis(self, start_list, end_list): + for vdi_ref in end_list: + if not vdi_ref in start_list: + self.fail('Found unexpected VDI:%s' % vdi_ref) + def _test_spawn(self, image_ref, kernel_id, ramdisk_id, instance_type_id="3", os_type="linux", instance_id=1, check_injection=False): diff --git a/nova/tests/xenapi/stubs.py b/nova/tests/xenapi/stubs.py index 0ecf83187..91731ad01 100644 --- a/nova/tests/xenapi/stubs.py +++ b/nova/tests/xenapi/stubs.py @@ -151,7 +151,7 @@ class FakeSessionForVMTests(fake.SessionBase): def host_call_plugin(self, _1, _2, plugin, method, _5): # copy_kernel_vdi returns nothing - if fn == 'copy_kernel_vdi': + if method == 'copy_kernel_vdi': return sr_ref = fake.get_all('SR')[0] vdi_ref = fake.create_vdi('', False, sr_ref, False) diff --git a/nova/virt/xenapi/vm_utils.py b/nova/virt/xenapi/vm_utils.py index 43621cf2f..322f258b4 100644 --- a/nova/virt/xenapi/vm_utils.py +++ b/nova/virt/xenapi/vm_utils.py @@ -503,6 +503,7 @@ class VMHelper(HelperBase): # VHD disk, it may be worth using the plugin for both VHD and RAW and # DISK restores LOG.debug(_("Fetching image %(image)s") % locals()) + LOG.debug(_("Image Type: %s"), ImageType.pretty_format(image_type)) sr_ref = safe_find_sr(session) glance_client, image_id = nova.image.get_glance_client(image) @@ -512,7 +513,6 @@ class VMHelper(HelperBase): #vdi_type = 'file' # will be set to os if image_type==ImageType.DISK LOG.debug(_("Size for image %(image)s:" + "%(virtual_size)d") % locals()) - if image_type == ImageType.DISK: # Make room for MBR. vdi_size += MBR_SIZE_BYTES @@ -531,6 +531,7 @@ class VMHelper(HelperBase): try: filename = None vdi_uuid = session.get_xenapi().VDI.get_uuid(vdi_ref) + LOG.debug("HERE-1") with_vdi_attached_here(session, vdi_ref, False, lambda dev: _stream_disk(dev, image_type, @@ -538,6 +539,7 @@ class VMHelper(HelperBase): if image_type in (ImageType.KERNEL, ImageType.RAMDISK): #we need to invoke a plugin for copying VDI's #content into proper path + LOG.debug("HERE-2") LOG.debug(_("Copying VDI %s to /boot/guest on dom0"), vdi_ref) fn = "copy_kernel_vdi" args = {} @@ -563,7 +565,7 @@ class VMHelper(HelperBase): e.args = e.args + ([dict(vdi_type=ImageType. pretty_format(image_type), vdi_uuid=vdi_uuid, - file=filename)],) + file=filename)],) raise e @classmethod @@ -663,10 +665,15 @@ class VMHelper(HelperBase): if image_type == ImageType.DISK_RAW: args['raw'] = 'true' task = session.async_call_plugin('objectstore', fn, args) - uuid_or_fn = session.wait_for_task(task, instance_id) - if not image_type in (ImageType.KERNEL, ImageType.RAMDISK): - return [dict(vdi_type='os', vdi_uuid=uuid_or_fn)] - return uuid_or_fn + vdi_uuid = None + filename = None + if image_type in (ImageType.KERNEL, ImageType.RAMDISK): + filename = session.wait_for_task(task, instance_id) + else: + vdi_uuid = session.wait_for_task(task, instance_id) + return [dict(vdi_type=ImageType.pretty_format(image_type), + vdi_uuid=vdi_uuid, + file=filename)] @classmethod def determine_is_pv(cls, session, instance_id, vdi_ref, disk_image_type, diff --git a/nova/virt/xenapi/vmops.py b/nova/virt/xenapi/vmops.py index c198bee4a..e3e32a266 100644 --- a/nova/virt/xenapi/vmops.py +++ b/nova/virt/xenapi/vmops.py @@ -166,7 +166,6 @@ class VMOps(object): ramdisk = VMHelper.fetch_image(self._session, instance.id, instance.ramdisk_id, user, project, ImageType.RAMDISK)[0] - # Create the VM ref and attach the first disk first_vdi_ref = self._session.call_xenapi('VDI.get_by_uuid', vdis[0]['vdi_uuid']) @@ -174,7 +173,9 @@ class VMOps(object): instance.id, first_vdi_ref, disk_image_type, instance.os_type) vm_ref = VMHelper.create_vm(self._session, instance, - kernel['file'], ramdisk['file'], use_pv_kernel) + kernel and kernel.get('file', None) or None, + ramdisk and ramdisk.get('file', None) or None, + use_pv_kernel) except (self.XenAPI.Failure, OSError, IOError) as vm_create_error: # collect resources to clean up # _handle_spawn_error will remove unused resources @@ -288,6 +289,7 @@ class VMOps(object): def _handle_spawn_error(self, vdis, spawn_error): # extract resource dictionary from spawn error + resources = [] if spawn_error.args: last_arg = spawn_error.args[-1] resources = last_arg -- cgit From 14a63fa2c7de79fe173771fd98e448650387e924 Mon Sep 17 00:00:00 2001 From: Vishvananda Ishaya Date: Sat, 25 Jun 2011 17:29:14 -0700 Subject: add support to list security groups --- nova/api/ec2/cloud.py | 5 ++++- nova/api/ec2/metadatarequesthandler.py | 6 ++++-- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/nova/api/ec2/cloud.py b/nova/api/ec2/cloud.py index 9aaf37a2d..194ddee97 100644 --- a/nova/api/ec2/cloud.py +++ b/nova/api/ec2/cloud.py @@ -167,6 +167,9 @@ class CloudController(object): instance_ref['id']) ec2_id = ec2utils.id_to_ec2_id(instance_ref['id']) image_ec2_id = self.image_ec2_id(instance_ref['image_ref']) + security_groups = db.security_group_get_by_instance(ctxt, + instance_ref['id']) + security_groups = [x['name'] for x in security_groups] data = { 'user-data': base64.b64decode(instance_ref['user_data']), 'meta-data': { @@ -190,7 +193,7 @@ class CloudController(object): 'public-ipv4': floating_ip or '', 'public-keys': keys, 'reservation-id': instance_ref['reservation_id'], - 'security-groups': '', + 'security-groups': security_groups, 'mpi': mpi}} for image_type in ['kernel', 'ramdisk']: diff --git a/nova/api/ec2/metadatarequesthandler.py b/nova/api/ec2/metadatarequesthandler.py index b70266a20..1dc275c90 100644 --- a/nova/api/ec2/metadatarequesthandler.py +++ b/nova/api/ec2/metadatarequesthandler.py @@ -35,6 +35,9 @@ FLAGS = flags.FLAGS class MetadataRequestHandler(wsgi.Application): """Serve metadata from the EC2 API.""" + def __init__(self): + self.cc = cloud.CloudController() + def print_data(self, data): if isinstance(data, dict): output = '' @@ -68,12 +71,11 @@ class MetadataRequestHandler(wsgi.Application): @webob.dec.wsgify(RequestClass=wsgi.Request) def __call__(self, req): - cc = cloud.CloudController() remote_address = req.remote_addr if FLAGS.use_forwarded_for: remote_address = req.headers.get('X-Forwarded-For', remote_address) try: - meta_data = cc.get_metadata(remote_address) + meta_data = self.cc.get_metadata(remote_address) except Exception: LOG.exception(_('Failed to get metadata for ip: %s'), remote_address) -- cgit From 1c677ad263f72583748074d01f6dbd384c411c11 Mon Sep 17 00:00:00 2001 From: Vishvananda Ishaya Date: Sat, 25 Jun 2011 17:47:54 -0700 Subject: add fake connection object to wsgi app --- nova/wsgi.py | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/nova/wsgi.py b/nova/wsgi.py index 33ba852bc..2613357b2 100644 --- a/nova/wsgi.py +++ b/nova/wsgi.py @@ -91,6 +91,35 @@ class Request(webob.Request): class Application(object): """Base WSGI application wrapper. Subclasses need to implement __call__.""" + @classmethod + def fake_connection(cls): + """Return a fake httplib connection object for this Application""" + class FakeConnection(object): + """Faked version of httplib.HTTPConnection to talk to app.""" + def __init__(self): + self.app = cls() + + def request(self, method, url, body=None, headers={}): + self.req = webob.Request.blank("/" + url.lstrip("/")) + self.req.remote_addr = '127.0.0.1' + self.req.method = method + if headers: + self.req.headers = headers + if body: + self.req.body = body + + def getresponse(self): + res = self.req.get_response(self.app) + + # httplib.Response has a read() method...fake it out + def fake_reader(): + return res.body + + setattr(res, 'read', fake_reader) + return res + + return FakeConnection() + @classmethod def factory(cls, global_config, **local_config): """Used for paste app factories in paste.deploy config files. -- cgit From a8f485d148f2184253fcbd7ccdfa9de9bb0bb735 Mon Sep 17 00:00:00 2001 From: Vishvananda Ishaya Date: Sat, 25 Jun 2011 17:50:39 -0700 Subject: add metadata tests --- nova/tests/test_metadata.py | 82 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 nova/tests/test_metadata.py diff --git a/nova/tests/test_metadata.py b/nova/tests/test_metadata.py new file mode 100644 index 000000000..30b5b19a7 --- /dev/null +++ b/nova/tests/test_metadata.py @@ -0,0 +1,82 @@ +# vim: tabstop=4 shiftwidth=4 softtabstop=4 + +# Copyright 2010 United States Government as represented by the +# Administrator of the National Aeronautics and Space Administration. +# All Rights Reserved. +# +# 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. + +"""Tests for the testing the metadata code.""" + +import base64 +import httplib + +from nova import test +from nova import wsgi +from nova.api.ec2 import metadatarequesthandler +from nova.db.sqlalchemy import api + + +class MetadataTestCase(test.TestCase): + """Test that metadata is returning proper values.""" + def setUp(self): + super(MetadataTestCase, self).setUp() + self.instance = ({'id': 1, + 'project_id': 'test', + 'key_name': None, + 'host': 'test', + 'launch_index': 1, + 'instance_type': 'm1.tiny', + 'reservation_id': 'r-xxxxxxxx', + 'user_data': '', + 'image_ref': 7, + 'hostname' : 'test'}) + + def instance_get(*args, **kwargs): + return self.instance + + def floating_get(*args, **kwargs): + return '99.99.99.99' + + self.conn = self.fake_connection() + self.stubs.Set(api, 'instance_get', instance_get) + self.stubs.Set(api, 'fixed_ip_get_instance', instance_get) + self.stubs.Set(api, 'instance_get_floating_address', floating_get) + + def real_connection(self): + router = metadatarequesthandler.MetadataRequestHandler() + service = wsgi.Server() + service.start(router, 16969) + return httplib.HTTPConnection('127.0.0.1', 16969) + + def fake_connection(self): + return metadatarequesthandler.MetadataRequestHandler.fake_connection() + + def request(self, relative_url): + self.conn.request('GET', relative_url) + return self.conn.getresponse().read() + + def test_base(self): + self.assertEqual(self.request('/'), 'meta-data/\nuser-data') + + def test_user_data(self): + self.instance['user_data'] = base64.b64encode('happy') + self.assertEqual(self.request('/user-data'), 'happy') + + def test_security_groups(self): + def sg_get(*args, **kwargs): + return [{'name': 'default'}, {'name': 'other'}] + self.stubs.Set(api, 'security_group_get_by_instance', sg_get) + self.assertEqual(self.request('/meta-data/security-groups'), + 'default\nother') + -- cgit From b86b14ac5a96332beedf10ca8da5787adfc6c308 Mon Sep 17 00:00:00 2001 From: Vishvananda Ishaya Date: Sat, 25 Jun 2011 17:52:26 -0700 Subject: pep8 --- nova/tests/test_metadata.py | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/nova/tests/test_metadata.py b/nova/tests/test_metadata.py index 30b5b19a7..1ef1fea86 100644 --- a/nova/tests/test_metadata.py +++ b/nova/tests/test_metadata.py @@ -40,7 +40,7 @@ class MetadataTestCase(test.TestCase): 'reservation_id': 'r-xxxxxxxx', 'user_data': '', 'image_ref': 7, - 'hostname' : 'test'}) + 'hostname': 'test'}) def instance_get(*args, **kwargs): return self.instance @@ -79,4 +79,3 @@ class MetadataTestCase(test.TestCase): self.stubs.Set(api, 'security_group_get_by_instance', sg_get) self.assertEqual(self.request('/meta-data/security-groups'), 'default\nother') - -- cgit From d1b904d5b7d4a277adc156d8ab576b37b7e190fc Mon Sep 17 00:00:00 2001 From: Brian Lamar Date: Mon, 27 Jun 2011 09:56:31 -0400 Subject: Use webob to test WSGI app --- nova/tests/test_metadata.py | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-) diff --git a/nova/tests/test_metadata.py b/nova/tests/test_metadata.py index 1ef1fea86..c7095914c 100644 --- a/nova/tests/test_metadata.py +++ b/nova/tests/test_metadata.py @@ -21,6 +21,8 @@ import base64 import httplib +import webob + from nova import test from nova import wsgi from nova.api.ec2 import metadatarequesthandler @@ -48,23 +50,15 @@ class MetadataTestCase(test.TestCase): def floating_get(*args, **kwargs): return '99.99.99.99' - self.conn = self.fake_connection() self.stubs.Set(api, 'instance_get', instance_get) self.stubs.Set(api, 'fixed_ip_get_instance', instance_get) self.stubs.Set(api, 'instance_get_floating_address', floating_get) - - def real_connection(self): - router = metadatarequesthandler.MetadataRequestHandler() - service = wsgi.Server() - service.start(router, 16969) - return httplib.HTTPConnection('127.0.0.1', 16969) - - def fake_connection(self): - return metadatarequesthandler.MetadataRequestHandler.fake_connection() + self.app = metadatarequesthandler.MetadataRequestHandler() def request(self, relative_url): - self.conn.request('GET', relative_url) - return self.conn.getresponse().read() + request = webob.Request.blank(relative_url) + request.remote_addr = "127.0.0.1" + return request.get_response(self.app).body def test_base(self): self.assertEqual(self.request('/'), 'meta-data/\nuser-data') -- cgit From ad19a9e762f735a33af710fb8bded3a086266587 Mon Sep 17 00:00:00 2001 From: Brian Lamar Date: Mon, 27 Jun 2011 09:58:17 -0400 Subject: Removed now un-needed fake_connection --- nova/tests/test_metadata.py | 1 + nova/wsgi.py | 29 ----------------------------- 2 files changed, 1 insertion(+), 29 deletions(-) diff --git a/nova/tests/test_metadata.py b/nova/tests/test_metadata.py index c7095914c..c862726ab 100644 --- a/nova/tests/test_metadata.py +++ b/nova/tests/test_metadata.py @@ -31,6 +31,7 @@ from nova.db.sqlalchemy import api class MetadataTestCase(test.TestCase): """Test that metadata is returning proper values.""" + def setUp(self): super(MetadataTestCase, self).setUp() self.instance = ({'id': 1, diff --git a/nova/wsgi.py b/nova/wsgi.py index 2613357b2..33ba852bc 100644 --- a/nova/wsgi.py +++ b/nova/wsgi.py @@ -91,35 +91,6 @@ class Request(webob.Request): class Application(object): """Base WSGI application wrapper. Subclasses need to implement __call__.""" - @classmethod - def fake_connection(cls): - """Return a fake httplib connection object for this Application""" - class FakeConnection(object): - """Faked version of httplib.HTTPConnection to talk to app.""" - def __init__(self): - self.app = cls() - - def request(self, method, url, body=None, headers={}): - self.req = webob.Request.blank("/" + url.lstrip("/")) - self.req.remote_addr = '127.0.0.1' - self.req.method = method - if headers: - self.req.headers = headers - if body: - self.req.body = body - - def getresponse(self): - res = self.req.get_response(self.app) - - # httplib.Response has a read() method...fake it out - def fake_reader(): - return res.body - - setattr(res, 'read', fake_reader) - return res - - return FakeConnection() - @classmethod def factory(cls, global_config, **local_config): """Used for paste app factories in paste.deploy config files. -- cgit From 5686488517f702bd4ba714edeea89ea1993ac220 Mon Sep 17 00:00:00 2001 From: Vishvananda Ishaya Date: Wed, 29 Jun 2011 09:49:49 -0700 Subject: Allow a port name in the server ref for image create --- nova/api/openstack/images.py | 11 ++++++++--- nova/tests/api/openstack/test_images.py | 13 +++++++++++++ 2 files changed, 21 insertions(+), 3 deletions(-) diff --git a/nova/api/openstack/images.py b/nova/api/openstack/images.py index d43340e10..22c79e2e9 100644 --- a/nova/api/openstack/images.py +++ b/nova/api/openstack/images.py @@ -208,9 +208,14 @@ class ControllerV11(Controller): msg = _("Expected serverRef attribute on server entity.") raise webob.exc.HTTPBadRequest(explanation=msg) - head, tail = os.path.split(server_ref) - - if head and head != os.path.join(req.application_url, 'servers'): + head, _sep, tail = server_ref.rpartition('/') + + url, _sep, version = req.application_url.rpartition('/') + long_url = '%s:%s/%s' % (url, FLAGS.osapi_port, version) + valid_urls = ['%s/servers' % req.application_url, + '%s/servers' % long_url] + if head and head not in valid_urls: + LOG.warn(head) msg = _("serverRef must match request url") raise webob.exc.HTTPBadRequest(explanation=msg) diff --git a/nova/tests/api/openstack/test_images.py b/nova/tests/api/openstack/test_images.py index 446d68e9e..6c36f96a7 100644 --- a/nova/tests/api/openstack/test_images.py +++ b/nova/tests/api/openstack/test_images.py @@ -1011,6 +1011,19 @@ class ImageControllerWithGlanceServiceTest(test.TestCase): result = json.loads(response.body) self.assertEqual(result['image']['serverRef'], serverRef) + def test_create_image_v1_1_actual_server_ref_port(self): + + serverRef = 'http://localhost:8774/v1.1/servers/1' + body = dict(image=dict(serverRef=serverRef, name='Backup 1')) + req = webob.Request.blank('/v1.1/images') + req.method = 'POST' + req.body = json.dumps(body) + req.headers["content-type"] = "application/json" + response = req.get_response(fakes.wsgi_app()) + self.assertEqual(200, response.status_int) + result = json.loads(response.body) + self.assertEqual(result['image']['serverRef'], serverRef) + def test_create_image_v1_1_server_ref_bad_hostname(self): serverRef = 'http://asdf/v1.1/servers/1' -- cgit From 7ca20797496947c0bdd60e77b4962fd360e01f55 Mon Sep 17 00:00:00 2001 From: Ed Leafe Date: Fri, 1 Jul 2011 13:44:12 +0000 Subject: after trunk merge --- nova/api/openstack/auth.py | 1 + nova/api/openstack/wsgi.py | 1 + nova/compute/api.py | 10 ++++++++++ nova/compute/manager.py | 10 ++++++++++ nova/scheduler/api.py | 5 +++++ nova/scheduler/manager.py | 4 ++++ nova/scheduler/zone_manager.py | 15 ++++++++++++++- 7 files changed, 45 insertions(+), 1 deletion(-) diff --git a/nova/api/openstack/auth.py b/nova/api/openstack/auth.py index 7c3e683d6..6231216c9 100644 --- a/nova/api/openstack/auth.py +++ b/nova/api/openstack/auth.py @@ -100,6 +100,7 @@ class AuthMiddleware(wsgi.Middleware): token, user = self._authorize_user(username, key, req) if user and token: + print "TOKEN:", token['token_hash'] res = webob.Response() res.headers['X-Auth-Token'] = token['token_hash'] res.headers['X-Server-Management-Url'] = \ diff --git a/nova/api/openstack/wsgi.py b/nova/api/openstack/wsgi.py index 5b6e3cb1d..ba8ee8bfd 100644 --- a/nova/api/openstack/wsgi.py +++ b/nova/api/openstack/wsgi.py @@ -362,6 +362,7 @@ class Resource(wsgi.Application): "url": request.url}) try: + print "BODY: >%s<"%request.body action, action_args, accept = self.deserializer.deserialize( request) except exception.InvalidContentType: diff --git a/nova/compute/api.py b/nova/compute/api.py index 28459dc75..4dba6cf1f 100644 --- a/nova/compute/api.py +++ b/nova/compute/api.py @@ -912,6 +912,16 @@ class API(base.Base): """Unpause the given instance.""" self._cast_compute_message('unpause_instance', context, instance_id) + def disable_host(self, context, instance_id=None, host=None): + """Sets the specified to not receive new instances.""" + return self._call_compute_message("disable_host", context, + instance_id=None, host=host) + + def enable_host(self, context, instance_id=None, host=None): + """Sets the specified to receive new instances.""" + return self._call_compute_message("enable_host", context, + instance_id=None, host=host) + @scheduler_api.reroute_compute("diagnostics") def get_diagnostics(self, context, instance_id): """Retrieve diagnostics for the given instance.""" diff --git a/nova/compute/manager.py b/nova/compute/manager.py index bbbddde0a..152b2670c 100644 --- a/nova/compute/manager.py +++ b/nova/compute/manager.py @@ -874,6 +874,16 @@ class ComputeManager(manager.SchedulerDependentManager): instance_id, result)) + @exception.wrap_exception + def disable_host(self, context, instance_id=None, host=None): + """Set a host so that it can not accept new instances.""" + return self.driver.disable_host(host) + + @exception.wrap_exception + def enable_host(self, context, instance_id=None, host=None): + """Set a host so that it can accept new instances.""" + return self.driver.enable_host(host) + @exception.wrap_exception def get_diagnostics(self, context, instance_id): """Retrieve diagnostics for an instance on this host.""" diff --git a/nova/scheduler/api.py b/nova/scheduler/api.py index 0f4fc48c8..137b671c0 100644 --- a/nova/scheduler/api.py +++ b/nova/scheduler/api.py @@ -51,6 +51,11 @@ def _call_scheduler(method, context, params=None): return rpc.call(context, queue, kwargs) +def get_host_list(context): + """Return a list of hosts associated with this zone.""" + return _call_scheduler('get_host_list', context) + + def get_zone_list(context): """Return a list of zones assoicated with this zone.""" items = _call_scheduler('get_zone_list', context) diff --git a/nova/scheduler/manager.py b/nova/scheduler/manager.py index 6cb75aa8d..749d66cad 100644 --- a/nova/scheduler/manager.py +++ b/nova/scheduler/manager.py @@ -56,6 +56,10 @@ class SchedulerManager(manager.Manager): """Poll child zones periodically to get status.""" self.zone_manager.ping(context) + def get_host_list(self, context=None): + """Get a list of hosts from the ZoneManager.""" + return self.zone_manager.get_host_list() + def get_zone_list(self, context=None): """Get a list of zones from the ZoneManager.""" return self.zone_manager.get_zone_list() diff --git a/nova/scheduler/zone_manager.py b/nova/scheduler/zone_manager.py index ba7403c15..169a96989 100644 --- a/nova/scheduler/zone_manager.py +++ b/nova/scheduler/zone_manager.py @@ -115,6 +115,17 @@ class ZoneManager(object): """Return the list of zones we know about.""" return [zone.to_dict() for zone in self.zone_states.values()] + def get_host_list(self): + """Returns a list of all the host names that the Zone Manager + knows about. + """ + all_hosts = self.service_states.keys() + ret = [] + for host in self.service_states: + for svc in self.service_states[host]: + ret.append({"service": svc, "host_name": host}) + return ret + def get_zone_capabilities(self, context): """Roll up all the individual host info to generic 'service' capabilities. Each capability is aggregated into @@ -127,13 +138,15 @@ class ZoneManager(object): combined = {} # { _ : (min, max), ... } for host, host_dict in hosts_dict.iteritems(): for service_name, service_dict in host_dict.iteritems(): + if not service_dict.get("enabled", True): + # Service is disabled; do no include it + continue for cap, value in service_dict.iteritems(): key = "%s_%s" % (service_name, cap) min_value, max_value = combined.get(key, (value, value)) min_value = min(min_value, value) max_value = max(max_value, value) combined[key] = (min_value, max_value) - return combined def _refresh_from_db(self, context): -- cgit From fb6aba61ef03032c31196bd58c68fa7b7d4c2769 Mon Sep 17 00:00:00 2001 From: Ed Leafe Date: Fri, 1 Jul 2011 14:26:05 +0000 Subject: completed api changes. still need plugin changes --- nova/compute/api.py | 13 ++++--------- nova/compute/manager.py | 12 ++++-------- nova/virt/driver.py | 4 ++++ nova/virt/fake.py | 4 ++++ nova/virt/hyperv.py | 4 ++++ nova/virt/libvirt/connection.py | 4 ++++ nova/virt/vmwareapi_conn.py | 4 ++++ nova/virt/xenapi/vmops.py | 18 ++++++++++++++++++ nova/virt/xenapi_conn.py | 4 ++++ 9 files changed, 50 insertions(+), 17 deletions(-) diff --git a/nova/compute/api.py b/nova/compute/api.py index 4dba6cf1f..c99b64c50 100644 --- a/nova/compute/api.py +++ b/nova/compute/api.py @@ -912,15 +912,10 @@ class API(base.Base): """Unpause the given instance.""" self._cast_compute_message('unpause_instance', context, instance_id) - def disable_host(self, context, instance_id=None, host=None): - """Sets the specified to not receive new instances.""" - return self._call_compute_message("disable_host", context, - instance_id=None, host=host) - - def enable_host(self, context, instance_id=None, host=None): - """Sets the specified to receive new instances.""" - return self._call_compute_message("enable_host", context, - instance_id=None, host=host) + def set_host_enabled(self, context, host, enabled): + """Sets the specified host's ability to accept new instances.""" + return self._call_compute_message("set_host_enabled", context, + instance_id=None, host=host, enabled=enabled) @scheduler_api.reroute_compute("diagnostics") def get_diagnostics(self, context, instance_id): diff --git a/nova/compute/manager.py b/nova/compute/manager.py index 152b2670c..91a604934 100644 --- a/nova/compute/manager.py +++ b/nova/compute/manager.py @@ -875,14 +875,10 @@ class ComputeManager(manager.SchedulerDependentManager): result)) @exception.wrap_exception - def disable_host(self, context, instance_id=None, host=None): - """Set a host so that it can not accept new instances.""" - return self.driver.disable_host(host) - - @exception.wrap_exception - def enable_host(self, context, instance_id=None, host=None): - """Set a host so that it can accept new instances.""" - return self.driver.enable_host(host) + def set_host_enabled(self, context, instance_id=None, host=None, + enabled=None): + """Sets the specified host's ability to accept new instances.""" + return self.driver.set_host_enabled(host, enabled) @exception.wrap_exception def get_diagnostics(self, context, instance_id): diff --git a/nova/virt/driver.py b/nova/virt/driver.py index 1c9797973..3c4a073bf 100644 --- a/nova/virt/driver.py +++ b/nova/virt/driver.py @@ -249,3 +249,7 @@ class ComputeDriver(object): def poll_rescued_instances(self, timeout): """Poll for rescued instances""" raise NotImplementedError() + + def set_host_enabled(self, host, enabled): + """Sets the specified host's ability to accept new instances.""" + raise NotImplementedError() diff --git a/nova/virt/fake.py b/nova/virt/fake.py index 5fe9d674f..ea0a59f21 100644 --- a/nova/virt/fake.py +++ b/nova/virt/fake.py @@ -514,3 +514,7 @@ class FakeConnection(driver.ComputeDriver): def get_host_stats(self, refresh=False): """Return fake Host Status of ram, disk, network.""" return self.host_status + + def set_host_enabled(self, host, enabled): + """Sets the specified host's ability to accept new instances.""" + pass diff --git a/nova/virt/hyperv.py b/nova/virt/hyperv.py index f6783f3aa..5c1dc772d 100644 --- a/nova/virt/hyperv.py +++ b/nova/virt/hyperv.py @@ -499,3 +499,7 @@ class HyperVConnection(driver.ComputeDriver): def get_host_stats(self, refresh=False): """See xenapi_conn.py implementation.""" pass + + def set_host_enabled(self, host, enabled): + """Sets the specified host's ability to accept new instances.""" + pass diff --git a/nova/virt/libvirt/connection.py b/nova/virt/libvirt/connection.py index 0c6eaab84..b80a3daee 100644 --- a/nova/virt/libvirt/connection.py +++ b/nova/virt/libvirt/connection.py @@ -1591,3 +1591,7 @@ class LibvirtConnection(driver.ComputeDriver): def get_host_stats(self, refresh=False): """See xenapi_conn.py implementation.""" pass + + def set_host_enabled(self, host, enabled): + """Sets the specified host's ability to accept new instances.""" + pass diff --git a/nova/virt/vmwareapi_conn.py b/nova/virt/vmwareapi_conn.py index 3c6345ec8..d80e14931 100644 --- a/nova/virt/vmwareapi_conn.py +++ b/nova/virt/vmwareapi_conn.py @@ -190,6 +190,10 @@ class VMWareESXConnection(driver.ComputeDriver): """This method is supported only by libvirt.""" return + def set_host_enabled(self, host, enabled): + """Sets the specified host's ability to accept new instances.""" + pass + class VMWareAPISession(object): """ diff --git a/nova/virt/xenapi/vmops.py b/nova/virt/xenapi/vmops.py index b116c8467..44645840c 100644 --- a/nova/virt/xenapi/vmops.py +++ b/nova/virt/xenapi/vmops.py @@ -24,6 +24,7 @@ import json import M2Crypto import os import pickle +import random import subprocess import time import uuid @@ -932,6 +933,23 @@ class VMOps(object): # TODO: implement this! return 'http://fakeajaxconsole/fake_url' + def set_host_enabled(self, host, enabled): + """Sets the specified host's ability to accept new instances.""" + return self._call_xenhost("set_enabled", {"enabled": enabled}) + + def _call_xenhost(self, method, arg_dict): + # Create a task ID as something that won't match any instance ID + task_id = random.randint(-80000, -70000) + try: + task = self._session.async_call_plugin("xenhost", method, + args=arg_dict) + ret = self._session.wait_for_task(task, task_id) + except self.XenAPI.Failure as e: + ret = None + LOG.error(_("The call to %(method)s returned an error: %(e)s.") + % locals()) + return ret + def inject_network_info(self, instance, network_info, vm_ref=None): """ Generate the network info and make calls to place it into the diff --git a/nova/virt/xenapi_conn.py b/nova/virt/xenapi_conn.py index cd4dc1b60..ec8c44c1c 100644 --- a/nova/virt/xenapi_conn.py +++ b/nova/virt/xenapi_conn.py @@ -336,6 +336,10 @@ class XenAPIConnection(driver.ComputeDriver): True, run the update first.""" return self.HostState.get_host_stats(refresh=refresh) + def set_host_enabled(self, host, enabled): + """Sets the specified host's ability to accept new instances.""" + return self._vmops.set_host_enabled(host, enabled) + class XenAPISession(object): """The session to invoke XenAPI SDK calls""" -- cgit From 401bbecb4fbb819d2b1daa3ee1bebcd6460742a1 Mon Sep 17 00:00:00 2001 From: Vishvananda Ishaya Date: Fri, 1 Jul 2011 11:12:13 -0700 Subject: use url parse instead of manually splitting --- nova/api/openstack/images.py | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/nova/api/openstack/images.py b/nova/api/openstack/images.py index 22c79e2e9..9717f3175 100644 --- a/nova/api/openstack/images.py +++ b/nova/api/openstack/images.py @@ -13,6 +13,7 @@ # License for the specific language governing permissions and limitations # under the License. +import urlparse import os.path import webob.exc @@ -22,7 +23,6 @@ from nova import exception from nova import flags import nova.image from nova import log -from nova import utils from nova.api.openstack import common from nova.api.openstack import faults from nova.api.openstack.views import images as images_view @@ -208,18 +208,24 @@ class ControllerV11(Controller): msg = _("Expected serverRef attribute on server entity.") raise webob.exc.HTTPBadRequest(explanation=msg) - head, _sep, tail = server_ref.rpartition('/') - - url, _sep, version = req.application_url.rpartition('/') - long_url = '%s:%s/%s' % (url, FLAGS.osapi_port, version) - valid_urls = ['%s/servers' % req.application_url, - '%s/servers' % long_url] - if head and head not in valid_urls: - LOG.warn(head) + if not server_ref.startswith('http'): + return server_ref + + passed = urlparse.urlparse(server_ref) + expected = urlparse.urlparse(req.application_url) + version = expected.path.split('/')[1] + expected_prefix = "/%s/servers/" % version + _empty, _sep, server_id = passed.path.partition(expected_prefix) + scheme_ok = passed.scheme == expected.scheme + host_ok = passed.hostname == expected.hostname + port_ok = (passed.port == expected.port or + passed.port == FLAGS.osapi_port) + LOG.warn(locals()) + if not (scheme_ok and port_ok and host_ok and server_id): msg = _("serverRef must match request url") raise webob.exc.HTTPBadRequest(explanation=msg) - return tail + return server_id def _get_extra_properties(self, req, data): server_ref = data['image']['serverRef'] -- cgit From a9b0dbb8dcd708a46af58f61bab39b0bc9e8a6e8 Mon Sep 17 00:00:00 2001 From: Vishvananda Ishaya Date: Fri, 1 Jul 2011 12:03:27 -0700 Subject: remove logging statement --- nova/api/openstack/images.py | 1 - 1 file changed, 1 deletion(-) diff --git a/nova/api/openstack/images.py b/nova/api/openstack/images.py index 9717f3175..b4ab0b3af 100644 --- a/nova/api/openstack/images.py +++ b/nova/api/openstack/images.py @@ -220,7 +220,6 @@ class ControllerV11(Controller): host_ok = passed.hostname == expected.hostname port_ok = (passed.port == expected.port or passed.port == FLAGS.osapi_port) - LOG.warn(locals()) if not (scheme_ok and port_ok and host_ok and server_id): msg = _("serverRef must match request url") raise webob.exc.HTTPBadRequest(explanation=msg) -- cgit From 42dabbc86e3af49215ced275d76d241b4daf8bdc Mon Sep 17 00:00:00 2001 From: Ed Leafe Date: Fri, 1 Jul 2011 19:44:10 +0000 Subject: Updated unit tests --- nova/compute/api.py | 2 +- nova/virt/xenapi/vmops.py | 26 ++++++++++++- .../xenserver/xenapi/etc/xapi.d/plugins/xenhost | 45 +++++++++++++++++++--- 3 files changed, 65 insertions(+), 8 deletions(-) diff --git a/nova/compute/api.py b/nova/compute/api.py index c99b64c50..b0eedcd64 100644 --- a/nova/compute/api.py +++ b/nova/compute/api.py @@ -915,7 +915,7 @@ class API(base.Base): def set_host_enabled(self, context, host, enabled): """Sets the specified host's ability to accept new instances.""" return self._call_compute_message("set_host_enabled", context, - instance_id=None, host=host, enabled=enabled) + instance_id=None, host=host, params={"enabled": enabled}) @scheduler_api.reroute_compute("diagnostics") def get_diagnostics(self, context, instance_id): diff --git a/nova/virt/xenapi/vmops.py b/nova/virt/xenapi/vmops.py index 44645840c..535a55ebb 100644 --- a/nova/virt/xenapi/vmops.py +++ b/nova/virt/xenapi/vmops.py @@ -935,20 +935,44 @@ class VMOps(object): def set_host_enabled(self, host, enabled): """Sets the specified host's ability to accept new instances.""" - return self._call_xenhost("set_enabled", {"enabled": enabled}) + args = {"enabled": json.dumps(enabled)} + json_resp = self._call_xenhost("set_host_enabled", args) + resp = json.loads(json_resp) + return resp["status"] def _call_xenhost(self, method, arg_dict): + """There will be several methods that will need this general + handling for interacting with the xenhost plugin, so this abstracts + out that behavior. + """ # Create a task ID as something that won't match any instance ID task_id = random.randint(-80000, -70000) try: task = self._session.async_call_plugin("xenhost", method, args=arg_dict) + #args={"params": arg_dict}) ret = self._session.wait_for_task(task, task_id) except self.XenAPI.Failure as e: ret = None LOG.error(_("The call to %(method)s returned an error: %(e)s.") % locals()) return ret +# def set_host_enabled(self, host, enabled): +# """Sets the specified host's ability to accept new instances.""" +# return self._call_xenhost("set_host_enabled", {"enabled": enabled}) +# +# def _call_xenhost(self, method, arg_dict): +# # Create a task ID as something that won't match any instance ID +# task_id = random.randint(-80000, -70000) +# try: +# task = self._session.async_call_plugin("xenhost", method, +# args=arg_dict) +# ret = self._session.wait_for_task(task, task_id) +# except self.XenAPI.Failure as e: +# ret = None +# LOG.error(_("The call to %(method)s returned an error: %(e)s.") +# % locals()) +# return ret def inject_network_info(self, instance, network_info, vm_ref=None): """ diff --git a/plugins/xenserver/xenapi/etc/xapi.d/plugins/xenhost b/plugins/xenserver/xenapi/etc/xapi.d/plugins/xenhost index a8428e841..13e62929a 100644 --- a/plugins/xenserver/xenapi/etc/xapi.d/plugins/xenhost +++ b/plugins/xenserver/xenapi/etc/xapi.d/plugins/xenhost @@ -33,9 +33,10 @@ import tempfile import time import XenAPIPlugin +import pluginlib_nova as pluginlib -from pluginlib_nova import * -configure_logging("xenhost") + +pluginlib.configure_logging("xenhost") host_data_pattern = re.compile(r"\s*(\S+) \([^\)]+\) *: ?(.*)") @@ -65,14 +66,45 @@ def _run_command(cmd): return proc.stdout.read() +def _get_host_uuid(): + cmd = "xe host-list | grep uuid" + resp = _run_command(cmd) + return resp.split(":")[-1].strip() + + +@jsonify +def set_host_enabled(self, arg_dict): + """Sets this host's ability to accept new instances. + It will otherwise continue to operate normally. + """ + enabled = arg_dict.get("enabled") + if enabled is None: + raise pluginlib.PluginError( + _("Missing 'enabled' argument to set_host_enabled")) + if enabled == "true": + result = _run_command("xe host-enable") + elif enabled == "false": + result = _run_command("xe host-disable") + else: + raise pluginlib.PluginError(_("Illegal enabled status: %s") % enabled) + # Should be empty string + if result: + raise pluginlib.PluginError(result) + # Return the current enabled status + host_uuid = _get_host_uuid() + cmd = "xe host-param-list uuid=%s | grep enabled" % host_uuid + resp = _run_command(cmd) + # Response should be in the format: "enabled ( RO): true" + status = resp.strip().split()[-1] + return {"status": status} + + @jsonify def host_data(self, arg_dict): """Runs the commands on the xenstore host to return the current status information. """ - cmd = "xe host-list | grep uuid" - resp = _run_command(cmd) - host_uuid = resp.split(":")[-1].strip() + host_uuid = _get_host_uuid() cmd = "xe host-param-list uuid=%s" % host_uuid resp = _run_command(cmd) parsed_data = parse_response(resp) @@ -180,4 +212,5 @@ def cleanup(dct): if __name__ == "__main__": XenAPIPlugin.dispatch( - {"host_data": host_data}) + {"host_data": host_data, + "set_host_enabled": set_host_enabled}) -- cgit From 49c8202f43b9f606d9bd0a362b5805be98460326 Mon Sep 17 00:00:00 2001 From: Ed Leafe Date: Fri, 1 Jul 2011 19:53:06 +0000 Subject: removed debugging output --- nova/api/openstack/wsgi.py | 1 - 1 file changed, 1 deletion(-) diff --git a/nova/api/openstack/wsgi.py b/nova/api/openstack/wsgi.py index ba8ee8bfd..5b6e3cb1d 100644 --- a/nova/api/openstack/wsgi.py +++ b/nova/api/openstack/wsgi.py @@ -362,7 +362,6 @@ class Resource(wsgi.Application): "url": request.url}) try: - print "BODY: >%s<"%request.body action, action_args, accept = self.deserializer.deserialize( request) except exception.InvalidContentType: -- cgit From 2dc2a5f66dc039ff1755981374f4065d048bcc26 Mon Sep 17 00:00:00 2001 From: Ed Leafe Date: Fri, 1 Jul 2011 20:33:00 +0000 Subject: removed more stray debug output --- nova/api/openstack/auth.py | 1 - 1 file changed, 1 deletion(-) diff --git a/nova/api/openstack/auth.py b/nova/api/openstack/auth.py index 6231216c9..7c3e683d6 100644 --- a/nova/api/openstack/auth.py +++ b/nova/api/openstack/auth.py @@ -100,7 +100,6 @@ class AuthMiddleware(wsgi.Middleware): token, user = self._authorize_user(username, key, req) if user and token: - print "TOKEN:", token['token_hash'] res = webob.Response() res.headers['X-Auth-Token'] = token['token_hash'] res.headers['X-Server-Management-Url'] = \ -- cgit From 723e5076a414b52e716f5a5cac7667c5b09a36d3 Mon Sep 17 00:00:00 2001 From: Ed Leafe Date: Fri, 1 Jul 2011 20:39:56 +0000 Subject: removed unneeded old commented code --- nova/virt/xenapi/vmops.py | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/nova/virt/xenapi/vmops.py b/nova/virt/xenapi/vmops.py index 535a55ebb..cb96930c1 100644 --- a/nova/virt/xenapi/vmops.py +++ b/nova/virt/xenapi/vmops.py @@ -957,22 +957,6 @@ class VMOps(object): LOG.error(_("The call to %(method)s returned an error: %(e)s.") % locals()) return ret -# def set_host_enabled(self, host, enabled): -# """Sets the specified host's ability to accept new instances.""" -# return self._call_xenhost("set_host_enabled", {"enabled": enabled}) -# -# def _call_xenhost(self, method, arg_dict): -# # Create a task ID as something that won't match any instance ID -# task_id = random.randint(-80000, -70000) -# try: -# task = self._session.async_call_plugin("xenhost", method, -# args=arg_dict) -# ret = self._session.wait_for_task(task, task_id) -# except self.XenAPI.Failure as e: -# ret = None -# LOG.error(_("The call to %(method)s returned an error: %(e)s.") -# % locals()) -# return ret def inject_network_info(self, instance, network_info, vm_ref=None): """ -- cgit From 7307f17edeb284a6b2da076ffa16b2ef5c82a4f4 Mon Sep 17 00:00:00 2001 From: Ed Leafe Date: Mon, 4 Jul 2011 15:41:37 +0000 Subject: Added missing extension file and tests. Also modified the get_host_list() docstring to be more accurate about the return value. --- nova/api/openstack/contrib/hosts.py | 112 ++++++++++++++++++++++++++++++++++++ nova/scheduler/zone_manager.py | 5 +- nova/tests/test_hosts.py | 101 ++++++++++++++++++++++++++++++++ 3 files changed, 216 insertions(+), 2 deletions(-) create mode 100644 nova/api/openstack/contrib/hosts.py create mode 100644 nova/tests/test_hosts.py diff --git a/nova/api/openstack/contrib/hosts.py b/nova/api/openstack/contrib/hosts.py new file mode 100644 index 000000000..40a260c20 --- /dev/null +++ b/nova/api/openstack/contrib/hosts.py @@ -0,0 +1,112 @@ +# Copyright (c) 2011 Openstack, LLC. +# All Rights Reserved. +# +# 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. + +"""The hosts admin extension.""" + +from webob import exc + +from nova import compute +from nova import exception +from nova import flags +from nova import log as logging +from nova.api.openstack import common +from nova.api.openstack import extensions +from nova.api.openstack import faults +from nova.scheduler import api as scheduler_api + + +LOG = logging.getLogger("nova.api.hosts") +FLAGS = flags.FLAGS + + +def _list_hosts(req, service=None): + """Returns a summary list of hosts, optionally filtering + by service type. + """ + context = req.environ['nova.context'] + hosts = scheduler_api.get_host_list(context) + if service: + hosts = [host for host in hosts + if host["service"] == service] + return hosts + + +def check_host(fn): + """Makes sure that the host exists.""" + def wrapped(self, req, id, service=None, *args, **kwargs): + listed_hosts = _list_hosts(req, service) + hosts = [h["host_name"] for h in listed_hosts] + if id in hosts: + return fn(self, req, id, *args, **kwargs) + else: + raise exception.HostNotFound(host=id) + return wrapped + + +class HostController(object): + """The Hosts API controller for the OpenStack API.""" + def __init__(self): + self.compute_api = compute.API() + super(HostController, self).__init__() + + def index(self, req): + return {'hosts': _list_hosts(req)} + + @check_host + def update(self, req, id, body): + for raw_key, raw_val in body.iteritems(): + key = raw_key.lower().strip() + val = raw_val.lower().strip() + # NOTE: (dabo) Right now only 'status' can be set, but other + # actions may follow. + if key == "status": + if val in ("enable", "disable"): + return self._set_enabled_status(req, id, + enabled=(val == "enable")) + else: + raise ValueError(_("Invalid status: '%s'") % raw_val) + else: + raise ValueError(_("Invalid update setting: '%s'") % raw_key) + + def _set_enabled_status(self, req, host, enabled): + """Sets the specified host's ability to accept new instances.""" + context = req.environ['nova.context'] + state = "enabled" if enabled else "disabled" + LOG.audit(_("Setting host %(host)s to %(state)s.") % locals()) + result = self.compute_api.set_host_enabled(context, host=host, + enabled=enabled) + return {"host": host, "status": result} + + +class Hosts(extensions.ExtensionDescriptor): + def get_name(self): + return "Hosts" + + def get_alias(self): + return "os-hosts" + + def get_description(self): + return "Host administration" + + def get_namespace(self): + return "http://docs.openstack.org/ext/hosts/api/v1.1" + + def get_updated(self): + return "2011-06-29T00:00:00+00:00" + + def get_resources(self): + resources = [extensions.ResourceExtension('os-hosts', HostController(), + collection_actions={'update': 'PUT'}, member_actions={})] + return resources diff --git a/nova/scheduler/zone_manager.py b/nova/scheduler/zone_manager.py index 169a96989..6093443a9 100644 --- a/nova/scheduler/zone_manager.py +++ b/nova/scheduler/zone_manager.py @@ -116,8 +116,9 @@ class ZoneManager(object): return [zone.to_dict() for zone in self.zone_states.values()] def get_host_list(self): - """Returns a list of all the host names that the Zone Manager - knows about. + """Returns a list of dicts for each host that the Zone Manager + knows about. Each dict contains the host_name and the service + for that host. """ all_hosts = self.service_states.keys() ret = [] diff --git a/nova/tests/test_hosts.py b/nova/tests/test_hosts.py new file mode 100644 index 000000000..9c3344873 --- /dev/null +++ b/nova/tests/test_hosts.py @@ -0,0 +1,101 @@ +# Copyright (c) 2011 Openstack, LLC. +# All Rights Reserved. +# +# 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 stubout + +from nova import context +from nova import exception +from nova import flags +from nova import log as logging +from nova import test +from nova.api.openstack.contrib import hosts as os_hosts +from nova.scheduler import api as scheduler_api + + +FLAGS = flags.FLAGS +LOG = logging.getLogger('nova.tests.hosts') +# Simulate the hosts returned by the zone manager. +HOST_LIST = [ + {"host_name": "host_c1", "service": "compute"}, + {"host_name": "host_c2", "service": "compute"}, + {"host_name": "host_v1", "service": "volume"}, + {"host_name": "host_v2", "service": "volume"}] + + +def stub_get_host_list(req): + return HOST_LIST + + +def stub_set_host_enabled(context, host, enabled): + # We'll simulate success and failure by assuming + # that 'host_c1' always succeeds, and 'host_c2' + # always fails + fail = (host == "host_c2") + status = "enabled" if (enabled ^ fail) else "disabled" + return status + + +class FakeRequest(object): + environ = {"nova.context": context.get_admin_context()} + + +class HostTestCase(test.TestCase): + """Test Case for hosts.""" + + def setUp(self): + super(HostTestCase, self).setUp() + self.controller = os_hosts.HostController() + self.req = FakeRequest() + self.stubs.Set(scheduler_api, 'get_host_list', stub_get_host_list) + self.stubs.Set(self.controller.compute_api, 'set_host_enabled', + stub_set_host_enabled) + + def test_list_hosts(self): + """Verify that the compute hosts are returned.""" + hosts = os_hosts._list_hosts(self.req) + self.assertEqual(hosts, HOST_LIST) + + compute_hosts = os_hosts._list_hosts(self.req, "compute") + expected = [host for host in HOST_LIST + if host["service"] == "compute"] + self.assertEqual(compute_hosts, expected) + + def test_disable_host(self): + dis_body = {"status": "disable"} + result_c1 = self.controller.update(self.req, "host_c1", body=dis_body) + self.assertEqual(result_c1["status"], "disabled") + result_c2 = self.controller.update(self.req, "host_c2", body=dis_body) + self.assertEqual(result_c2["status"], "enabled") + + def test_enable_host(self): + en_body = {"status": "enable"} + result_c1 = self.controller.update(self.req, "host_c1", body=en_body) + self.assertEqual(result_c1["status"], "enabled") + result_c2 = self.controller.update(self.req, "host_c2", body=en_body) + self.assertEqual(result_c2["status"], "disabled") + + def test_bad_status_value(self): + bad_body = {"status": "bad"} + self.assertRaises(ValueError, self.controller.update, self.req, + "host_c1", body=bad_body) + + def test_bad_update_key(self): + bad_body = {"crazy": "bad"} + self.assertRaises(ValueError, self.controller.update, self.req, + "host_c1", body=bad_body) + + def test_bad_host(self): + self.assertRaises(exception.HostNotFound, self.controller.update, + self.req, "bogus_host_name", body={"status": "disable"}) -- cgit From 33ee3015e28e23e2d875d6467215fd7e0071f7e4 Mon Sep 17 00:00:00 2001 From: Salvatore Orlando Date: Mon, 4 Jul 2011 17:02:50 +0100 Subject: Fixing weird error while running tests. Fix required patching nova/tests/___init__.py explictly importing nova.test --- nova/__init__.py | 1 + nova/tests/test_xenapi.py | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/nova/__init__.py b/nova/__init__.py index 884c4a713..92516f48b 100644 --- a/nova/__init__.py +++ b/nova/__init__.py @@ -33,5 +33,6 @@ import gettext +from nova import test gettext.install("nova", unicode=1) diff --git a/nova/tests/test_xenapi.py b/nova/tests/test_xenapi.py index 3302bd095..4cb7447d3 100644 --- a/nova/tests/test_xenapi.py +++ b/nova/tests/test_xenapi.py @@ -450,7 +450,7 @@ class XenAPIVMTestCase(test.TestCase): self._check_vdis(vdi_recs_start, vdi_recs_end) def test_spawn_fail_cleanup_2(self): - """Simulates an error while creating VM record. + """Simulates an error while creating VM record. It verifies that VDIs created are properly cleaned up. -- cgit From cb4e9afc4648e341cc14416a1d31d6459b9d9a61 Mon Sep 17 00:00:00 2001 From: Salvatore Orlando Date: Mon, 4 Jul 2011 17:22:08 +0100 Subject: Removing import of nova.test added to nova/__init.py__ as problem turned out to be somewhere else (not in nova source code tree) --- nova/__init__.py | 1 - 1 file changed, 1 deletion(-) diff --git a/nova/__init__.py b/nova/__init__.py index 92516f48b..884c4a713 100644 --- a/nova/__init__.py +++ b/nova/__init__.py @@ -33,6 +33,5 @@ import gettext -from nova import test gettext.install("nova", unicode=1) -- cgit From dae701b125747de544baca22b369a52f1ad3551e Mon Sep 17 00:00:00 2001 From: Nickolay Sokolov Date: Mon, 4 Jul 2011 21:03:01 +0400 Subject: Gracefull shutdown of nova-api. --- bin/nova-api | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/bin/nova-api b/bin/nova-api index fff67251f..71c68f24d 100755 --- a/bin/nova-api +++ b/bin/nova-api @@ -24,6 +24,7 @@ Starts both the EC2 and OpenStack APIs in separate processes. """ import os +import signal import sys possible_topdir = os.path.normpath(os.path.join(os.path.abspath( @@ -34,11 +35,15 @@ if os.path.exists(os.path.join(possible_topdir, "nova", "__init__.py")): import nova.service import nova.utils +def create_kill_handler(launcher): + def handle(signal, frame): + launcher.stop() + return handle def main(): """Launch EC2 and OSAPI services.""" nova.utils.Bootstrapper.bootstrap_binary(sys.argv) - + ec2 = nova.service.WSGIService("ec2") osapi = nova.service.WSGIService("osapi") @@ -46,10 +51,9 @@ def main(): launcher.launch_service(ec2) launcher.launch_service(osapi) - try: - launcher.wait() - except KeyboardInterrupt: - launcher.stop() + signal.signal(signal.SIGTERM, create_kill_handler(launcher)) + + launcher.wait() if __name__ == '__main__': -- cgit From 1732c373aa21fb7493b8fb50dd64bdf9425bf70b Mon Sep 17 00:00:00 2001 From: Nikolay Sokolov Date: Mon, 4 Jul 2011 23:48:05 +0400 Subject: Gracefull shutdown of nova-api. --- Authors | 1 + bin/nova-api | 14 +++++++++----- 2 files changed, 10 insertions(+), 5 deletions(-) diff --git a/Authors b/Authors index c3a65f1b4..f2770852a 100644 --- a/Authors +++ b/Authors @@ -93,3 +93,4 @@ Yoshiaki Tamura Youcef Laribi Yuriy Taraday Zhixue Wu +Nikolay Sokolov diff --git a/bin/nova-api b/bin/nova-api index fff67251f..71c68f24d 100755 --- a/bin/nova-api +++ b/bin/nova-api @@ -24,6 +24,7 @@ Starts both the EC2 and OpenStack APIs in separate processes. """ import os +import signal import sys possible_topdir = os.path.normpath(os.path.join(os.path.abspath( @@ -34,11 +35,15 @@ if os.path.exists(os.path.join(possible_topdir, "nova", "__init__.py")): import nova.service import nova.utils +def create_kill_handler(launcher): + def handle(signal, frame): + launcher.stop() + return handle def main(): """Launch EC2 and OSAPI services.""" nova.utils.Bootstrapper.bootstrap_binary(sys.argv) - + ec2 = nova.service.WSGIService("ec2") osapi = nova.service.WSGIService("osapi") @@ -46,10 +51,9 @@ def main(): launcher.launch_service(ec2) launcher.launch_service(osapi) - try: - launcher.wait() - except KeyboardInterrupt: - launcher.stop() + signal.signal(signal.SIGTERM, create_kill_handler(launcher)) + + launcher.wait() if __name__ == '__main__': -- cgit From f9b6c84842cbb494d09de9debaee2ee37d49815c Mon Sep 17 00:00:00 2001 From: Chuck Short Date: Tue, 5 Jul 2011 08:32:04 -0400 Subject: UML doesnt do vnc as well --- nova/virt/libvirt/connection.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/nova/virt/libvirt/connection.py b/nova/virt/libvirt/connection.py index 0c6eaab84..233d14203 100644 --- a/nova/virt/libvirt/connection.py +++ b/nova/virt/libvirt/connection.py @@ -1015,7 +1015,7 @@ class LibvirtConnection(driver.ComputeDriver): 'volumes': block_device_mapping} if FLAGS.vnc_enabled: - if FLAGS.libvirt_type != 'lxc': + if FLAGS.libvirt_type != 'lxc' or FLAGS.libvirt_type != 'uml': xml_info['vncserver_host'] = FLAGS.vncserver_host xml_info['vnc_keymap'] = FLAGS.vnc_keymap if not rescue: -- cgit From b02b1d78245634f81a27d0ba0a6e29024495c162 Mon Sep 17 00:00:00 2001 From: Ed Leafe Date: Tue, 5 Jul 2011 14:36:52 +0000 Subject: Updated the plugin to return the actual enabled status instead of just 'true' or 'false' . --- plugins/xenserver/xenapi/etc/xapi.d/plugins/xenhost | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/plugins/xenserver/xenapi/etc/xapi.d/plugins/xenhost b/plugins/xenserver/xenapi/etc/xapi.d/plugins/xenhost index 13e62929a..292bbce12 100644 --- a/plugins/xenserver/xenapi/etc/xapi.d/plugins/xenhost +++ b/plugins/xenserver/xenapi/etc/xapi.d/plugins/xenhost @@ -95,7 +95,11 @@ def set_host_enabled(self, arg_dict): cmd = "xe host-param-list uuid=%s | grep enabled" % host_uuid resp = _run_command(cmd) # Response should be in the format: "enabled ( RO): true" - status = resp.strip().split()[-1] + host_enabled = resp.strip().split()[-1] + if host_enabled == "true": + status = "enabled" + else: + status = "disabled" return {"status": status} -- cgit From c2bb27363e5155adb9ba36844586d390ddd14de4 Mon Sep 17 00:00:00 2001 From: Sandy Walsh Date: Tue, 5 Jul 2011 12:16:35 -0700 Subject: fixed zone id check --- nova/scheduler/zone_aware_scheduler.py | 2 +- nova/tests/scheduler/test_zone_aware_scheduler.py | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/nova/scheduler/zone_aware_scheduler.py b/nova/scheduler/zone_aware_scheduler.py index 1cc98e48b..84ebd6b2f 100644 --- a/nova/scheduler/zone_aware_scheduler.py +++ b/nova/scheduler/zone_aware_scheduler.py @@ -183,7 +183,7 @@ class ZoneAwareScheduler(driver.Scheduler): continue for zone_rec in zones: - if zone_rec['api_url'] != zone: + if zone_rec['id'] != zone: continue for item in result: diff --git a/nova/tests/scheduler/test_zone_aware_scheduler.py b/nova/tests/scheduler/test_zone_aware_scheduler.py index 5950f4551..d74b71fb6 100644 --- a/nova/tests/scheduler/test_zone_aware_scheduler.py +++ b/nova/tests/scheduler/test_zone_aware_scheduler.py @@ -122,19 +122,19 @@ def fake_decrypt_blob_returns_child_info(blob): def fake_call_zone_method(context, method, specs, zones): return [ - ('zone1', [ + (1, [ dict(weight=1, blob='AAAAAAA'), dict(weight=111, blob='BBBBBBB'), dict(weight=112, blob='CCCCCCC'), dict(weight=113, blob='DDDDDDD'), ]), - ('zone2', [ + (2, [ dict(weight=120, blob='EEEEEEE'), dict(weight=2, blob='FFFFFFF'), dict(weight=122, blob='GGGGGGG'), dict(weight=123, blob='HHHHHHH'), ]), - ('zone3', [ + (3, [ dict(weight=130, blob='IIIIIII'), dict(weight=131, blob='JJJJJJJ'), dict(weight=132, blob='KKKKKKK'), -- cgit From fde44cdf69ad1884adf7007ae432438de5bcd664 Mon Sep 17 00:00:00 2001 From: Nikolay Sokolov Date: Wed, 6 Jul 2011 00:24:55 +0400 Subject: Signal handler cleanup, proper ^C handling. --- bin/nova-api | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/bin/nova-api b/bin/nova-api index 71c68f24d..a51eb1b6e 100755 --- a/bin/nova-api +++ b/bin/nova-api @@ -35,11 +35,6 @@ if os.path.exists(os.path.join(possible_topdir, "nova", "__init__.py")): import nova.service import nova.utils -def create_kill_handler(launcher): - def handle(signal, frame): - launcher.stop() - return handle - def main(): """Launch EC2 and OSAPI services.""" nova.utils.Bootstrapper.bootstrap_binary(sys.argv) @@ -51,9 +46,12 @@ def main(): launcher.launch_service(ec2) launcher.launch_service(osapi) - signal.signal(signal.SIGTERM, create_kill_handler(launcher)) - - launcher.wait() + signal.signal(signal.SIGTERM, lambda *_: launcher.stop()) + + try: + launcher.wait() + except KeyboardInterrupt: + launcher.stop() if __name__ == '__main__': -- cgit From ca191deeca33bd8ff2330acaf02cafaf94bfe401 Mon Sep 17 00:00:00 2001 From: Nikolay Sokolov Date: Wed, 6 Jul 2011 00:43:39 +0400 Subject: Proper Author section insertion (thx Eldar). --- Authors | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Authors b/Authors index f2770852a..1b3c90764 100644 --- a/Authors +++ b/Authors @@ -68,6 +68,7 @@ MORITA Kazutaka Muneyuki Noguchi Nachi Ueno Naveed Massjouni +Nikolay Sokolov Nirmal Ranganathan Paul Voccio Renuka Apte @@ -93,4 +94,3 @@ Yoshiaki Tamura Youcef Laribi Yuriy Taraday Zhixue Wu -Nikolay Sokolov -- cgit From c3229ec37f117d4fe8fc280b726a2e410a4b42a0 Mon Sep 17 00:00:00 2001 From: Nikolay Sokolov Date: Wed, 6 Jul 2011 01:09:00 +0400 Subject: Formatting fix. --- bin/nova-api | 1 + 1 file changed, 1 insertion(+) diff --git a/bin/nova-api b/bin/nova-api index a51eb1b6e..ccbb103f4 100755 --- a/bin/nova-api +++ b/bin/nova-api @@ -27,6 +27,7 @@ import os import signal import sys + possible_topdir = os.path.normpath(os.path.join(os.path.abspath( sys.argv[0]), os.pardir, os.pardir)) if os.path.exists(os.path.join(possible_topdir, "nova", "__init__.py")): -- cgit From 6b6fd2fe87ff23f3c056ba076218917404bd024a Mon Sep 17 00:00:00 2001 From: Nikolay Sokolov Date: Wed, 6 Jul 2011 01:31:04 +0400 Subject: PEP8 passed. --- bin/nova-api | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/bin/nova-api b/bin/nova-api index ccbb103f4..4c5164ea1 100755 --- a/bin/nova-api +++ b/bin/nova-api @@ -36,10 +36,11 @@ if os.path.exists(os.path.join(possible_topdir, "nova", "__init__.py")): import nova.service import nova.utils + def main(): """Launch EC2 and OSAPI services.""" nova.utils.Bootstrapper.bootstrap_binary(sys.argv) - + ec2 = nova.service.WSGIService("ec2") osapi = nova.service.WSGIService("osapi") @@ -48,7 +49,7 @@ def main(): launcher.launch_service(osapi) signal.signal(signal.SIGTERM, lambda *_: launcher.stop()) - + try: launcher.wait() except KeyboardInterrupt: -- cgit From 6435ba27edea7e525305d349cafea3d08f5db2c6 Mon Sep 17 00:00:00 2001 From: Ed Leafe Date: Wed, 6 Jul 2011 16:53:08 +0000 Subject: Changed the exception type for invalid requests to webob.exc.HTTPBadRequest. --- nova/api/openstack/contrib/hosts.py | 12 +++++++----- nova/tests/test_hosts.py | 5 +++-- 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/nova/api/openstack/contrib/hosts.py b/nova/api/openstack/contrib/hosts.py index 40a260c20..55e57e1a4 100644 --- a/nova/api/openstack/contrib/hosts.py +++ b/nova/api/openstack/contrib/hosts.py @@ -15,7 +15,7 @@ """The hosts admin extension.""" -from webob import exc +import webob.exc from nova import compute from nova import exception @@ -72,13 +72,15 @@ class HostController(object): # NOTE: (dabo) Right now only 'status' can be set, but other # actions may follow. if key == "status": - if val in ("enable", "disable"): + if val[:6] in ("enable", "disabl"): return self._set_enabled_status(req, id, - enabled=(val == "enable")) + enabled=(val.startswith("enable"))) else: - raise ValueError(_("Invalid status: '%s'") % raw_val) + explanation = _("Invalid status: '%s'") % raw_val + raise webob.exc.HTTPBadRequest(explanation=explanation) else: - raise ValueError(_("Invalid update setting: '%s'") % raw_key) + explanation = _("Invalid update setting: '%s'") % raw_key + raise webob.exc.HTTPBadRequest(explanation=explanation) def _set_enabled_status(self, req, host, enabled): """Sets the specified host's ability to accept new instances.""" diff --git a/nova/tests/test_hosts.py b/nova/tests/test_hosts.py index 9c3344873..c14ea349b 100644 --- a/nova/tests/test_hosts.py +++ b/nova/tests/test_hosts.py @@ -14,6 +14,7 @@ # under the License. import stubout +import webob.exc from nova import context from nova import exception @@ -88,12 +89,12 @@ class HostTestCase(test.TestCase): def test_bad_status_value(self): bad_body = {"status": "bad"} - self.assertRaises(ValueError, self.controller.update, self.req, + self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update, self.req, "host_c1", body=bad_body) def test_bad_update_key(self): bad_body = {"crazy": "bad"} - self.assertRaises(ValueError, self.controller.update, self.req, + self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update, self.req, "host_c1", body=bad_body) def test_bad_host(self): -- cgit From 9d29dc60d904f2c5037d03cead71933dc62777ff Mon Sep 17 00:00:00 2001 From: Ed Leafe Date: Wed, 6 Jul 2011 17:14:46 +0000 Subject: pep8 fixes --- nova/tests/test_hosts.py | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/nova/tests/test_hosts.py b/nova/tests/test_hosts.py index c14ea349b..548f81f8b 100644 --- a/nova/tests/test_hosts.py +++ b/nova/tests/test_hosts.py @@ -89,13 +89,13 @@ class HostTestCase(test.TestCase): def test_bad_status_value(self): bad_body = {"status": "bad"} - self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update, self.req, - "host_c1", body=bad_body) + self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update, + self.req, "host_c1", body=bad_body) def test_bad_update_key(self): bad_body = {"crazy": "bad"} - self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update, self.req, - "host_c1", body=bad_body) + self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update, + self.req, "host_c1", body=bad_body) def test_bad_host(self): self.assertRaises(exception.HostNotFound, self.controller.update, -- cgit From 2c3eeb5f9f5f78d9cb8fb3e37d5b5e1610d32499 Mon Sep 17 00:00:00 2001 From: John Tran Date: Thu, 7 Jul 2011 20:43:50 -0700 Subject: ec2 api _get_image method logic flaw that strips the hex16 digit off of the image name, and does a search against the db for it and ignores that it may not be the correct image, such as if doing a search for aki-0000009, yet that image name doesn't exist, it strips off aki- and looks for any image_id 0000009 and if there was an image match that happens to be an ami instead of aki, it will go ahead and deregister that. That behavior is unintended, so added logic to ensure that the original request image_id matches the type of image being returned from database by matching against container_format attr --- nova/api/ec2/cloud.py | 6 +++++- nova/tests/test_cloud.py | 30 +++++++++++++++++++++++------- 2 files changed, 28 insertions(+), 8 deletions(-) diff --git a/nova/api/ec2/cloud.py b/nova/api/ec2/cloud.py index 9be30cf75..a4f4dae4f 100644 --- a/nova/api/ec2/cloud.py +++ b/nova/api/ec2/cloud.py @@ -1088,12 +1088,16 @@ class CloudController(object): def _get_image(self, context, ec2_id): try: internal_id = ec2utils.ec2_id_to_id(ec2_id) - return self.image_service.show(context, internal_id) + image = self.image_service.show(context, internal_id) except (exception.InvalidEc2Id, exception.ImageNotFound): try: return self.image_service.show_by_name(context, ec2_id) except exception.NotFound: raise exception.ImageNotFound(image_id=ec2_id) + image_type = ec2_id.split('-')[0] + if image.get('container_format') != image_type: + raise exception.ImageNotFound(image_id=ec2_id) + return image def _format_image(self, image): """Convert from format defined by BaseImageService to S3 format.""" diff --git a/nova/tests/test_cloud.py b/nova/tests/test_cloud.py index bf7a2b7ca..d71a03aff 100644 --- a/nova/tests/test_cloud.py +++ b/nova/tests/test_cloud.py @@ -67,7 +67,8 @@ class CloudTestCase(test.TestCase): host = self.network.host def fake_show(meh, context, id): - return {'id': 1, 'properties': {'kernel_id': 1, 'ramdisk_id': 1, + return {'id': 1, 'container_format': 'ami', + 'properties': {'kernel_id': 1, 'ramdisk_id': 1, 'type': 'machine', 'image_state': 'available'}} self.stubs.Set(fake._FakeImageService, 'show', fake_show) @@ -418,7 +419,8 @@ class CloudTestCase(test.TestCase): describe_images = self.cloud.describe_images def fake_detail(meh, context): - return [{'id': 1, 'properties': {'kernel_id': 1, 'ramdisk_id': 1, + return [{'id': 1, 'container_format': 'ami', + 'properties': {'kernel_id': 1, 'ramdisk_id': 1, 'type': 'machine'}}] def fake_show_none(meh, context, id): @@ -448,7 +450,8 @@ class CloudTestCase(test.TestCase): def fake_show(meh, context, id): return {'id': 1, 'properties': {'kernel_id': 1, 'ramdisk_id': 1, - 'type': 'machine'}, 'is_public': True} + 'type': 'machine'}, 'container_format': 'ami', + 'is_public': True} self.stubs.Set(fake._FakeImageService, 'show', fake_show) self.stubs.Set(fake._FakeImageService, 'show_by_name', fake_show) @@ -460,7 +463,8 @@ class CloudTestCase(test.TestCase): modify_image_attribute = self.cloud.modify_image_attribute def fake_show(meh, context, id): - return {'id': 1, 'properties': {'kernel_id': 1, 'ramdisk_id': 1, + return {'id': 1, 'container_format': 'ami', + 'properties': {'kernel_id': 1, 'ramdisk_id': 1, 'type': 'machine'}, 'is_public': False} def fake_update(meh, context, image_id, metadata, data=None): @@ -494,6 +498,16 @@ class CloudTestCase(test.TestCase): self.assertRaises(exception.ImageNotFound, deregister_image, self.context, 'ami-bad001') + def test_deregister_image_wrong_container_type(self): + deregister_image = self.cloud.deregister_image + + def fake_delete(self, context, id): + return None + + self.stubs.Set(fake._FakeImageService, 'delete', fake_delete) + self.assertRaises(exception.NotFound, deregister_image, self.context, + 'aki-00000001') + def _run_instance(self, **kwargs): rv = self.cloud.run_instances(self.context, **kwargs) instance_id = rv['instancesSet'][0]['instanceId'] @@ -609,7 +623,7 @@ class CloudTestCase(test.TestCase): def fake_show_no_state(self, context, id): return {'id': 1, 'properties': {'kernel_id': 1, 'ramdisk_id': 1, - 'type': 'machine'}} + 'type': 'machine'}, 'container_format': 'ami'} self.stubs.UnsetAll() self.stubs.Set(fake._FakeImageService, 'show', fake_show_no_state) @@ -623,7 +637,8 @@ class CloudTestCase(test.TestCase): run_instances = self.cloud.run_instances def fake_show_decrypt(self, context, id): - return {'id': 1, 'properties': {'kernel_id': 1, 'ramdisk_id': 1, + return {'id': 1, 'container_format': 'ami', + 'properties': {'kernel_id': 1, 'ramdisk_id': 1, 'type': 'machine', 'image_state': 'decrypting'}} self.stubs.UnsetAll() @@ -638,7 +653,8 @@ class CloudTestCase(test.TestCase): run_instances = self.cloud.run_instances def fake_show_stat_active(self, context, id): - return {'id': 1, 'properties': {'kernel_id': 1, 'ramdisk_id': 1, + return {'id': 1, 'container_format': 'ami', + 'properties': {'kernel_id': 1, 'ramdisk_id': 1, 'type': 'machine'}, 'status': 'active'} self.stubs.Set(fake._FakeImageService, 'show', fake_show_stat_active) -- cgit From dead2335faf36d4ea80d074093af8beaef3dabd3 Mon Sep 17 00:00:00 2001 From: Nikolay Sokolov Date: Fri, 8 Jul 2011 12:37:56 +0400 Subject: Updated mailmap due to wrong address in commit message. --- .mailmap | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/.mailmap b/.mailmap index 6673d0a26..ff304c891 100644 --- a/.mailmap +++ b/.mailmap @@ -50,4 +50,5 @@ - \ No newline at end of file + + -- cgit From 0130bb3d14e9e2db800ea0b15a48570085989521 Mon Sep 17 00:00:00 2001 From: Josh Kearney Date: Fri, 8 Jul 2011 10:59:17 -0500 Subject: First take at migrations. --- nova/api/openstack/servers.py | 10 +++++++++- nova/compute/api.py | 17 ++++++++++++----- 2 files changed, 21 insertions(+), 6 deletions(-) diff --git a/nova/api/openstack/servers.py b/nova/api/openstack/servers.py index fc1ab8d46..eacc2109f 100644 --- a/nova/api/openstack/servers.py +++ b/nova/api/openstack/servers.py @@ -176,7 +176,7 @@ class Controller(object): 'confirmResize': self._action_confirm_resize, 'revertResize': self._action_revert_resize, 'rebuild': self._action_rebuild, - } + 'migrate': self._action_migrate} for key in actions.keys(): if key in body: @@ -220,6 +220,14 @@ class Controller(object): return faults.Fault(exc.HTTPUnprocessableEntity()) return exc.HTTPAccepted() + def _action_migrate(self, input_dict, req, id): + try: + self.compute_api.resize(req.environ['nova.context'], id) + except Exception, e: + LOG.exception(_("Error in migrate %s"), e) + return faults.Fault(exc.HTTPBadRequest()) + return exc.HTTPAccepted() + @scheduler_api.redirect_handler def lock(self, req, id): """ diff --git a/nova/compute/api.py b/nova/compute/api.py index 28459dc75..b497a6550 100644 --- a/nova/compute/api.py +++ b/nova/compute/api.py @@ -855,13 +855,19 @@ class API(base.Base): self.db.instance_update(context, instance_id, {'host': migration_ref['dest_compute'], }) - def resize(self, context, instance_id, flavor_id): + def resize(self, context, instance_id, flavor_id=None): """Resize a running instance.""" instance = self.db.instance_get(context, instance_id) current_instance_type = instance['instance_type'] - new_instance_type = self.db.instance_type_get_by_flavor_id( - context, flavor_id) + # If flavor_id is not provided, only migrate the instance. + if not flavor_id: + LOG.debug(_("flavor_id is None. Assuming migration.")) + new_instance_type = current_instance_type + else: + new_instance_type = self.db.instance_type_get_by_flavor_id( + context, flavor_id) + current_instance_type_name = current_instance_type['name'] new_instance_type_name = new_instance_type['name'] LOG.debug(_("Old instance type %(current_instance_type_name)s, " @@ -875,7 +881,8 @@ class API(base.Base): if current_memory_mb > new_memory_mb: raise exception.ApiError(_("Invalid flavor: cannot downsize" "instances")) - if current_memory_mb == new_memory_mb: + + if (current_memory_mb == new_memory_mb) and flavor_id: raise exception.ApiError(_("Invalid flavor: cannot use" "the same flavor. ")) @@ -883,7 +890,7 @@ class API(base.Base): {"method": "prep_resize", "args": {"topic": FLAGS.compute_topic, "instance_id": instance_id, - "flavor_id": flavor_id}}) + "flavor_id": new_instance_type['id']}}) @scheduler_api.reroute_compute("add_fixed_ip") def add_fixed_ip(self, context, instance_id, network_id): -- cgit From ce0bdf7de31dcee53ee5ccdc0cca57333c6b6bc1 Mon Sep 17 00:00:00 2001 From: Josh Kearney Date: Fri, 8 Jul 2011 11:47:34 -0500 Subject: Added unit tests. --- nova/tests/api/openstack/test_servers.py | 17 +++++++++++++++++ nova/tests/test_compute.py | 8 ++++++++ 2 files changed, 25 insertions(+) diff --git a/nova/tests/api/openstack/test_servers.py b/nova/tests/api/openstack/test_servers.py index 0cb16b4c0..1f369c4c8 100644 --- a/nova/tests/api/openstack/test_servers.py +++ b/nova/tests/api/openstack/test_servers.py @@ -1557,6 +1557,23 @@ class ServersTest(test.TestCase): res = req.get_response(fakes.wsgi_app()) self.assertEqual(res.status_int, 400) + def test_migrate_server(self): + """This is basically the same as resize, only we provide the `migrate` + attribute in the body's dict. + """ + req = self.webreq('/1/action', 'POST', dict(migrate=None)) + + self.resize_called = False + + def resize_mock(*args): + self.resize_called = True + + self.stubs.Set(nova.compute.api.API, 'resize', resize_mock) + + res = req.get_response(fakes.wsgi_app()) + self.assertEqual(res.status_int, 202) + self.assertEqual(self.resize_called, True) + def test_shutdown_status(self): new_server = return_server_with_power_state(power_state.SHUTDOWN) self.stubs.Set(nova.db.api, 'instance_get', new_server) diff --git a/nova/tests/test_compute.py b/nova/tests/test_compute.py index 45cd2f764..04bb194d5 100644 --- a/nova/tests/test_compute.py +++ b/nova/tests/test_compute.py @@ -532,6 +532,14 @@ class ComputeTestCase(test.TestCase): self.context, instance_id, 1) self.compute.terminate_instance(self.context, instance_id) + def test_migrate(self): + context = self.context.elevated() + instance_id = self._create_instance() + self.compute.run_instance(self.context, instance_id) + # Migrate simply calls resize() without a flavor_id. + self.compute_api.resize(context, instance_id, None) + self.compute.terminate_instance(context, instance_id) + def _setup_other_managers(self): self.volume_manager = utils.import_object(FLAGS.volume_manager) self.network_manager = utils.import_object(FLAGS.network_manager) -- cgit From 93fe8b7844561f3872aa5afa5e85e7baf25f3ff4 Mon Sep 17 00:00:00 2001 From: Josh Kearney Date: Fri, 8 Jul 2011 14:50:52 -0500 Subject: Updated resize docstring. --- nova/compute/api.py | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/nova/compute/api.py b/nova/compute/api.py index 5e024f0ac..edd1a4d64 100644 --- a/nova/compute/api.py +++ b/nova/compute/api.py @@ -856,7 +856,12 @@ class API(base.Base): {'host': migration_ref['dest_compute'], }) def resize(self, context, instance_id, flavor_id=None): - """Resize a running instance.""" + """Resize (ie, migrate) a running instance. + + If flavor_id is None, the process is considered a migration, keeping + the original flavor_id. If flavor_id is not None, the instance should + be migrated to a new host and resized to the new flavor_id. + """ instance = self.db.instance_get(context, instance_id) current_instance_type = instance['instance_type'] -- cgit From 17fceb2368d63dd937dc5e9385158c01130557a7 Mon Sep 17 00:00:00 2001 From: John Tran Date: Fri, 8 Jul 2011 14:19:35 -0700 Subject: peer review fix - per vish: 'This method automatically converts unknown formats to ami, which is the same logic used to display unknown images in the ec2 api. This will allow you to properly deregister raw images, etc.' --- nova/api/ec2/cloud.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/nova/api/ec2/cloud.py b/nova/api/ec2/cloud.py index a4f4dae4f..ee263f614 100644 --- a/nova/api/ec2/cloud.py +++ b/nova/api/ec2/cloud.py @@ -1095,7 +1095,7 @@ class CloudController(object): except exception.NotFound: raise exception.ImageNotFound(image_id=ec2_id) image_type = ec2_id.split('-')[0] - if image.get('container_format') != image_type: + if self._image_type(image.get('container_format')) != image_type: raise exception.ImageNotFound(image_id=ec2_id) return image -- cgit From 209bf1ef495d2d599ef51e207e8de0694dec9790 Mon Sep 17 00:00:00 2001 From: Josh Kearney Date: Fri, 8 Jul 2011 17:12:14 -0500 Subject: Add a flag to disable ec2 or osapi. --- bin/nova-api | 14 +++++++++----- nova/flags.py | 2 ++ 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/bin/nova-api b/bin/nova-api index 4c5164ea1..fe8e83366 100755 --- a/bin/nova-api +++ b/bin/nova-api @@ -36,17 +36,21 @@ if os.path.exists(os.path.join(possible_topdir, "nova", "__init__.py")): import nova.service import nova.utils +from nova import flags + + +FLAGS = flags.FLAGS + def main(): """Launch EC2 and OSAPI services.""" nova.utils.Bootstrapper.bootstrap_binary(sys.argv) - ec2 = nova.service.WSGIService("ec2") - osapi = nova.service.WSGIService("osapi") - launcher = nova.service.Launcher() - launcher.launch_service(ec2) - launcher.launch_service(osapi) + + for api in FLAGS.enabled_apis: + service = nova.service.WSGIService(api) + launcher.launch_service(service) signal.signal(signal.SIGTERM, lambda *_: launcher.stop()) diff --git a/nova/flags.py b/nova/flags.py index 57a4ecf2f..49355b436 100644 --- a/nova/flags.py +++ b/nova/flags.py @@ -305,6 +305,8 @@ DEFINE_string('rabbit_virtual_host', '/', 'rabbit virtual host') DEFINE_integer('rabbit_retry_interval', 10, 'rabbit connection retry interval') DEFINE_integer('rabbit_max_retries', 12, 'rabbit connection attempts') DEFINE_string('control_exchange', 'nova', 'the main exchange to connect to') +DEFINE_list('enabled_apis', ['ec2', 'osapi'], + 'list of APIs to enable by default') DEFINE_string('ec2_host', '$my_ip', 'ip of api server') DEFINE_string('ec2_dmz_host', '$my_ip', 'internal ip of api server') DEFINE_integer('ec2_port', 8773, 'cloud controller port') -- cgit