def test_download_with_retries(self):
tries = [0]
class MyGlanceStubClient(stubs.StubGlanceClient):
"""A client that fails the first time, then succeeds."""
def get(self, image_id):
if tries[0] == 0:
tries[0] = 1
raise exception.ServiceUnavailable('')
else:
return {}
stub_client = MyGlanceStubClient()
stub_context = context.RequestContext(auth_token=True)
stub_context.user_id = 'fake'
stub_context.project_id = 'fake'
stub_service = service.Service(stub_client, 1, stub_context)
image_id = 1 # doesn't matter
writer = NullWriter()
# When retries are disabled, we should get an exception
self.config(glance_num_retries=0, group='glance')
self.assertRaises(exception.GlanceConnectionFailed,
stub_service.download, image_id, writer)
# Now lets enable retries. No exception should happen now.
tries = [0]
self.config(glance_num_retries=1, group='glance')
stub_service.download(image_id, writer)
def _get_tftp_image_info(node, ctx):
"""Generate the paths for tftp files for this instance
Raises IronicException if
- instance does not contain kernel_id or ramdisk_id
- deploy_kernel_id or deploy_ramdisk_id can not be read from
driver_info and defaults are not set
"""
d_info = _parse_deploy_info(node)
image_info = {}
image_info.update(pxe_utils.get_deploy_kr_info(node.uuid, d_info))
i_info = node.instance_info
labels = ('kernel', 'ramdisk')
if not (i_info.get('kernel') and i_info.get('ramdisk')):
glance_service = service.Service(version=1, context=ctx)
iproperties = glance_service.show(d_info['image_source'])['properties']
for label in labels:
if label + '_id' not in iproperties:
continue
i_info[label] = str(iproperties[label + '_id']).split('/')[-1]
node.instance_info = i_info
node.save(ctx)
for label in labels:
if label not in i_info:
continue
image_info[label] = (i_info[label],
os.path.join(CONF.pxe.tftp_root, node.uuid,
label))
return image_info
def _get_tftp_image_info(node, ctx):
"""Generate the paths for tftp files for this instance
Raises IronicException if
- instance does not contain kernel_id or ramdisk_id
- deploy_kernel_id or deploy_ramdisk_id can not be read from
driver_info and defaults are not set
"""
#TODO(ghe): Called multiples times. Should we store image_info?
d_info = _parse_driver_info(node)
image_info = {
'deploy_kernel': [None, None],
'deploy_ramdisk': [None, None],
}
for label in image_info:
image_info[label][0] = str(d_info[label]).split('/')[-1]
image_info[label][1] = os.path.join(CONF.pxe.tftp_root, node.uuid,
label)
glance_service = service.Service(version=1, context=ctx)
iproperties = glance_service.show(d_info['image_source'])['properties']
for label in ('kernel', 'ramdisk'):
image_info[label] = [None, None]
image_info[label][0] = str(iproperties[label + '_id']).split('/')[-1]
image_info[label][1] = os.path.join(CONF.pxe.tftp_root, node.uuid,
label)
return image_info
def _validate_glance_image(ctx, driver_info):
"""Validate the image in Glance.
Check if the image exist in Glance and if it contains the
'kernel_id' and 'ramdisk_id' properties.
:raises: InvalidParameterValue.
"""
image_id = driver_info['image_source']
try:
glance_service = service.Service(version=1, context=ctx)
image_props = glance_service.show(image_id)['properties']
except (exception.GlanceConnectionFailed, exception.ImageNotAuthorized,
exception.Invalid):
raise exception.InvalidParameterValue(
_("Failed to connect to Glance to get the properties "
"of the image %s") % image_id)
except exception.ImageNotFound:
raise exception.InvalidParameterValue(
_("Image %s not found in Glance") % image_id)
missing_props = []
for prop in ('kernel_id', 'ramdisk_id'):
if not image_props.get(prop):
missing_props.append(prop)
if missing_props:
props = ', '.join(missing_props)
raise exception.InvalidParameterValue(
_("Image %(image)s is missing the following properties: "
"%(properties)s") % {
'image': image_id,
'properties': props
})
def fetch(context, image_href, path, image_service=None):
# TODO(vish): Improve context handling and add owner and auth data
# when it is added to glance. Right now there is no
# auth checking in glance, so we assume that access was
# checked before we got here.
if not image_service:
image_service = service.Service(version=1, context=context)
with fileutils.remove_path_on_error(path):
with open(path, "wb") as image_file:
image_service.download(image_href, image_file)
def get_glance_image_property(context, image_uuid, property):
"""Returns the value of a glance image property.
:param context: context
:param image_uuid: the UUID of the image in glance
:param property: the property whose value is required.
:returns: the value of the property if it exists, otherwise None.
"""
glance_service = service.Service(version=1, context=context)
iproperties = glance_service.show(image_uuid)['properties']
return iproperties.get(property)
def get_temp_url_for_glance_image(context, image_uuid):
"""Returns the tmp url for a glance image.
:param context: context
:param image_uuid: the UUID of the image in glance
:returns: the tmp url for the glance image.
"""
# Glance API version 2 is required for getting direct_url of the image.
glance_service = service.Service(version=2, context=context)
image_properties = glance_service.show(image_uuid)
LOG.debug('Got image info: %(info)s for image %(image_uuid)s.',
{'info': image_properties, 'image_uuid': image_uuid})
return glance_service.swift_temp_url(image_properties)
def test_client_httpnotfound_converts_to_imagenotfound(self):
class MyGlanceStubClient(stubs.StubGlanceClient):
"""A client that raises a HTTPNotFound exception."""
def get(self, image_id):
raise exception.HTTPNotFound(image_id)
stub_client = MyGlanceStubClient()
stub_context = context.RequestContext(auth_token=True)
stub_context.user_id = 'fake'
stub_context.project_id = 'fake'
stub_service = service.Service(stub_client, 1, stub_context)
image_id = 1 # doesn't matter
writer = NullWriter()
self.assertRaises(exception.ImageNotFound, stub_service.download,
image_id, writer)
def setUp(self):
super(TestGlanceSwiftTempURL, self).setUp()
client = stubs.StubGlanceClient()
self.context = context.RequestContext()
self.service = service.Service(client, 2, self.context)
self.config(swift_temp_url_key='correcthorsebatterystaple',
group='glance')
self.config(swift_endpoint_url='https://swift.example.com',
group='glance')
self.config(swift_account='AUTH_a422b2-91f3-2f46-74b7-d7c9e8958f5d30',
group='glance')
self.config(swift_api_version='v1', group='glance')
self.config(swift_container='glance', group='glance')
self.config(swift_temp_url_duration=1200, group='glance')
self.config()
self.fake_image = {'id': '757274c4-2856-4bd2-bb20-9a4a231e187b'}
def prepare(self, task):
"""Prepare the deployment environment for this task's node.
Get the image info from glance, config the mac for the xcat
use ssh and iptables to disable dhcp on network node
:param task: a TaskManager instance containing the node to act on.
"""
# TODO(deva): optimize this if rerun on existing files
d_info = _parse_deploy_info(task.node)
i_info = task.node.instance_info
image_id = d_info['image_source']
try:
glance_service = service.Service(version=1, context=task.context)
image_name = glance_service.show(image_id)['name']
i_info['image_name'] = image_name
except (exception.GlanceConnectionFailed, exception.ImageNotAuthorized,
exception.Invalid):
LOG.warning(
_("Failed to connect to Glance to get the properties "
"of the image %s") % image_id)
node_mac_addresses = driver_utils.get_node_mac_addresses(task)
vif_ports_info = xcat_neutron.get_ports_info_from_neutron(task)
try:
network_info = self._get_deploy_network_info(
vif_ports_info, node_mac_addresses)
except (xcat_exception.GetNetworkFixedIPFailure,
xcat_exception.GetNetworkIdFailure):
LOG.error(_("Failed to get network info"))
return
if not network_info:
LOG.error(_("Failed to get network info"))
return
fixed_ip_address = network_info['fixed_ip_address']
deploy_mac_address = network_info['mac_address']
network_id = network_info['network_id']
i_info['fixed_ip_address'] = fixed_ip_address
i_info['network_id'] = network_id
i_info['deploy_mac_address'] = deploy_mac_address
# use iptables to drop the dhcp mac of baremetal machine
self._ssh_append_dhcp_rule(CONF.xcat.network_node_ip,
CONF.xcat.ssh_port, CONF.xcat.ssh_user,
CONF.xcat.ssh_password, network_id,
deploy_mac_address)
self._chdef_node_mac_address(d_info, deploy_mac_address)
def get_glance_image_properties(context, image_uuid, properties="all"):
"""Returns the values of several properties of a glance image
:param context: context
:param image_uuid: the UUID of the image in glance
:param properties: the properties whose values are required.
This argument is optional, default value is "all", so if not specified
all properties will be returned.
:returns: a dict of the values of the properties. A property not on the
glance metadata will have a value of None.
"""
glance_service = service.Service(version=1, context=context)
iproperties = glance_service.show(image_uuid)['properties']
if properties == "all":
return iproperties
return {p: iproperties.get(p) for p in properties}
def setUp(self):
super(TestGlanceImageService, self).setUp()
client = stubs.StubGlanceClient()
self.context = context.RequestContext(auth_token=True)
self.context.user_id = 'fake'
self.context.project_id = 'fake'
self.service = service.Service(client, 1, self.context)
self.config(glance_host='localhost', group='glance')
try:
self.config(auth_strategy='keystone', group='glance')
except Exception:
opts = [
cfg.StrOpt('auth_strategy', default='keystone'),
]
CONF.register_opts(opts)
return
def build_instance_info_for_deploy(task):
"""Build instance_info necessary for deploying to a node.
:param task: a TaskManager object containing the node
:returns: a dictionary containing the properties to be updated
in instance_info
"""
node = task.node
instance_info = node.instance_info
glance = image_service.Service(version=2, context=task.context)
image_info = glance.show(instance_info['image_source'])
swift_temp_url = glance.swift_temp_url(image_info)
LOG.debug('Got image info: %(info)s for node %(node)s.', {
'info': image_info,
'node': node.uuid
})
instance_info['image_url'] = swift_temp_url
instance_info['image_checksum'] = image_info['checksum']
return instance_info
def validate_glance_image_properties(ctx, deploy_info, properties):
"""Validate the image in Glance.
Check if the image exist in Glance and if it contains the
properties passed.
:param ctx: security context
:param deploy_info: the deploy_info to be validated
:param properties: the list of image meta-properties to be validated.
:raises: InvalidParameterValue if connection to glance failed or
authorization for accessing image failed or if image doesn't exist.
:raises: MissingParameterValue if the glance image doesn't contain
the mentioned properties.
"""
image_id = deploy_info['image_source']
try:
glance_service = service.Service(version=1, context=ctx)
image_props = glance_service.show(image_id)['properties']
except (exception.GlanceConnectionFailed, exception.ImageNotAuthorized,
exception.Invalid):
raise exception.InvalidParameterValue(
_("Failed to connect to Glance to get the properties "
"of the image %s") % image_id)
except exception.ImageNotFound:
raise exception.InvalidParameterValue(
_("Image %s not found in Glance") % image_id)
missing_props = []
for prop in properties:
if not image_props.get(prop):
missing_props.append(prop)
if missing_props:
props = ', '.join(missing_props)
raise exception.MissingParameterValue(
_("Image %(image)s is missing the following properties: "
"%(properties)s") % {
'image': image_id,
'properties': props
})
def test_download_file_url(self):
# NOTE: only in v2 API
class MyGlanceStubClient(stubs.StubGlanceClient):
"""A client that returns a file url."""
(outfd, s_tmpfname) = tempfile.mkstemp(prefix='directURLsrc')
outf = os.fdopen(outfd, 'w')
inf = open('/dev/urandom', 'r')
for i in range(10):
_data = inf.read(1024)
outf.write(_data)
outf.close()
def get(self, image_id):
return type('GlanceTestDirectUrlMeta', (object, ),
{'direct_url': 'file://%s' + self.s_tmpfname})
stub_context = context.RequestContext(auth_token=True)
stub_context.user_id = 'fake'
stub_context.project_id = 'fake'
stub_client = MyGlanceStubClient()
(outfd, tmpfname) = tempfile.mkstemp(prefix='directURLdst')
writer = os.fdopen(outfd, 'w')
stub_service = service.Service(stub_client,
context=stub_context,
version=2)
image_id = 1 # doesn't matter
self.config(allowed_direct_url_schemes=['file'], group='glance')
stub_service.download(image_id, writer)
writer.close()
# compare the two files
rc = filecmp.cmp(tmpfname, stub_client.s_tmpfname)
self.assertTrue(
rc, "The file %s and %s should be the same" %
(tmpfname, stub_client.s_tmpfname))
os.remove(stub_client.s_tmpfname)
os.remove(tmpfname)
def _get_tftp_image_info(node, ctx):
"""Generate the paths for tftp files for this instance
Raises IronicException if
- instance does not contain kernel_id or ramdisk_id
- deploy_kernel_id or deploy_ramdisk_id can not be read from
driver_info and defaults are not set
"""
d_info = _parse_driver_info(node)
image_info = {
'deploy_kernel': [None, None],
'deploy_ramdisk': [None, None],
}
for label in image_info:
image_info[label][0] = str(d_info[label]).split('/')[-1]
image_info[label][1] = os.path.join(CONF.pxe.tftp_root, node.uuid,
label)
driver_info = node.driver_info
labels = ('kernel', 'ramdisk')
if not (driver_info.get('pxe_kernel') and driver_info.get('pxe_ramdisk')):
glance_service = service.Service(version=1, context=ctx)
iproperties = glance_service.show(d_info['image_source'])['properties']
for label in labels:
driver_info['pxe_' + label] = str(
iproperties[label + '_id']).split('/')[-1]
node.driver_info = driver_info
node.save(ctx)
for label in labels:
image_info[label] = [None, None]
image_info[label][0] = driver_info['pxe_' + label]
image_info[label][1] = os.path.join(CONF.pxe.tftp_root, node.uuid,
label)
return image_info
def download_size(context, image_href, image_service=None):
if not image_service:
image_service = service.Service(version=1, context=context)
return image_service.show(image_href)['size']
