openstack/manila
Code Issues Proposed changes

Allow 2 or more export IPs for LVM driver

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Supporting dual IPv4/IPv6 backends will eventually require
multi-IP support in the first party backends. This change
enables multi-IP support (IPv4-only currently) in the LVM
driver.

Change-Id: Ib3594aa5d7751c829820fce830d87f6ceea6b049
Partial-Implements: blueprint support-ipv6-access
This commit is contained in:
Ben Swartzlander 2017-06-21 14:51:06 -04:00
parent 8fddbe2d19
commit 3755978ef7
7 changed files with 107 additions and 27 deletions
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2
devstack/plugin.sh
View File

@ -781,7 +781,7 @@ function configure_samba {
for backend_name in ${MANILA_ENABLED_BACKENDS//,/ }; do
iniset $MANILA_CONF $backend_name driver_handles_share_servers False
iniset $MANILA_CONF $backend_name lvm_share_export_ip $MANILA_LVM_SHARE_EXPORT_IP
iniset $MANILA_CONF $backend_name lvm_share_export_ips $MANILA_LVM_SHARE_EXPORT_IPS
done
iniset $MANILA_CONF DEFAULT data_node_access_ip $HOST_IP
fi

2
devstack/settings
View File

@ -152,7 +152,7 @@ MANILA_MNT_DIR=${MANILA_MNT_DIR:=$MANILA_STATE_PATH/mnt}
SMB_CONF=${SMB_CONF:-/etc/samba/smb.conf}
SMB_PRIVATE_DIR=${SMB_PRIVATE_DIR:-/var/lib/samba/private}
CONFIGURE_BACKING_FILE=${CONFIGURE_BACKING_FILE:-"True"}
MANILA_LVM_SHARE_EXPORT_IP=${MANILA_LVM_SHARE_EXPORT_IP:-$HOST_IP}
MANILA_LVM_SHARE_EXPORT_IPS=${MANILA_LVM_SHARE_EXPORT_IPS:-$HOST_IP}
# Options for replication
MANILA_REPLICA_STATE_UPDATE_INTERVAL=${MANILA_REPLICA_STATE_UPDATE_INTERVAL:-300}

41
manila/share/drivers/helpers.py
View File

@ -76,9 +76,15 @@ class NASHelperBase(object):
@staticmethod
def _verify_server_has_public_address(server):
if 'public_address' not in server:
if 'public_address' in server:
pass
elif 'public_addresses' in server:
if not isinstance(server['public_addresses'], list):
raise exception.ManilaException(_("public_addresses must be "
"a list"))
else:
raise exception.ManilaException(
_("Can not get 'public_address' for generation of export."))
_("Can not get public_address(es) for generation of export."))
def _get_export_location_template(self, export_location_or_path):
"""Returns template of export location.
@ -97,24 +103,29 @@ class NASHelperBase(object):
export_location_or_path)
export_locations = []
if 'public_addresses' in server:
pairs = list(map(lambda addr: (addr, False),
server['public_addresses']))
else:
pairs = [(server['public_address'], False)]
# NOTE(vponomaryov):
# Generic driver case: 'admin_ip' exists only in case of DHSS=True
# mode and 'ip' exists in case of DHSS=False mode.
# Use one of these for creation of export location for service needs.
# LVM driver will have only single export location.
service_address = server.get("admin_ip", server.get("ip"))
for ip, is_admin in ((server['public_address'], False),
(service_address, True)):
if ip:
export_locations.append({
"path": export_location_template % ip,
"is_admin_only": is_admin,
"metadata": {
# TODO(vponomaryov): remove this fake metadata when
# proper appears.
"export_location_metadata_example": "example",
},
})
if service_address:
pairs.append((service_address, True))
for ip, is_admin in pairs:
export_locations.append({
"path": export_location_template % ip,
"is_admin_only": is_admin,
"metadata": {
# TODO(vponomaryov): remove this fake metadata when
# proper appears.
"export_location_metadata_example": "example",
},
})
return export_locations
def get_share_path_by_export_location(self, server, export_location):

25
manila/share/drivers/lvm.py
View File

@ -40,7 +40,11 @@ share_opts = [
default='$state_path/mnt',
help='Base folder where exported shares are located.'),
cfg.StrOpt('lvm_share_export_ip',
deprecated_for_removal=True,
deprecated_reason='Use lvm_share_export_ips instead.',
help='IP to be added to export string.'),
cfg.ListOpt('lvm_share_export_ips',
help='List of IPs to export shares.'),
cfg.IntOpt('lvm_share_mirrors',
default=0,
help='If set, create LVMs with multiple mirrors. Note that '
@ -68,11 +72,19 @@ class LVMMixin(driver.ExecuteMixin):
run_as_root=True)
volume_groups = out.split()
if self.configuration.lvm_share_volume_group not in volume_groups:
msg = (_("share volume group %s doesn't exist")
msg = (_("Share volume group %s doesn't exist.")
% self.configuration.lvm_share_volume_group)
raise exception.InvalidParameterValue(err=msg)
if not self.configuration.lvm_share_export_ip:
msg = (_("lvm_share_export_ip isn't specified"))
if (self.configuration.lvm_share_export_ip and
self.configuration.lvm_share_export_ips):
msg = (_("Only one of lvm_share_export_ip or lvm_share_export_ips"
" may be specified."))
raise exception.InvalidParameterValue(err=msg)
if not (self.configuration.lvm_share_export_ip or
self.configuration.lvm_share_export_ips):
msg = (_("Neither lvm_share_export_ip nor lvm_share_export_ips is"
" specified."))
raise exception.InvalidParameterValue(err=msg)
def _allocate_container(self, share):
@ -146,10 +158,15 @@ class LVMShareDriver(LVMMixin, driver.ShareDriver):
# Set of parameters used for compatibility with
# Generic driver's helpers.
self.share_server = {
'public_address': self.configuration.lvm_share_export_ip,
'instance_id': self.backend_name,
'lock_name': 'manila_lvm',
}
if self.configuration.lvm_share_export_ip:
self.share_server['public_addresses'] = [
self.configuration.lvm_share_export_ip]
else:
self.share_server['public_addresses'] = (
self.configuration.lvm_share_export_ips)
def _ssh_exec_as_root(self, server, command, check_exit_code=True):
kwargs = {}

21
manila/tests/share/drivers/test_helpers.py
View File

@ -215,8 +215,8 @@ class NFSHelperTestCase(test.TestCase):
self._helper._ssh_exec.assert_has_calls(
[mock.call(self.server, mock.ANY) for i in range(1)])
@ddt.data('/foo/bar', '5.6.7.8:/bar/quuz', '5.6.7.88:/foo/quuz')
def test_get_exports_for_share(self, export_location):
@ddt.data('/foo/bar', '5.6.7.8:/bar/quuz', '5.6.7.9:/foo/quuz')
def test_get_exports_for_share_single_ip(self, export_location):
server = dict(public_address='1.2.3.4')
result = self._helper.get_exports_for_share(server, export_location)
@ -229,6 +229,23 @@ class NFSHelperTestCase(test.TestCase):
]
self.assertEqual(expected_export_locations, result)
@ddt.data('/foo/bar', '5.6.7.8:/bar/quuz', '5.6.7.9:/foo/quuz')
def test_get_exports_for_share_multi_ip(self, export_location):
server = dict(public_addresses=['1.2.3.4', '1.2.3.5'])
result = self._helper.get_exports_for_share(server, export_location)
path = export_location.split(':')[-1]
expected_export_locations = list(map(
lambda addr: {
"is_admin_only": False,
"path": "%s:%s" % (addr, path),
"metadata": {"export_location_metadata_example": "example"}
},
server['public_addresses'])
)
self.assertEqual(expected_export_locations, result)
@ddt.data(
{'public_address_with_suffix': 'foo'},
{'with_prefix_public_address': 'bar'},

28
manila/tests/share/drivers/test_lvm.py
View File

@ -87,7 +87,7 @@ class LVMShareDriverTestCase(test.TestCase):
self._context = context.get_admin_context()
CONF.set_default('lvm_share_volume_group', 'fakevg')
CONF.set_default('lvm_share_export_ip', '10.0.0.1')
CONF.set_default('lvm_share_export_ips', ['10.0.0.1', '10.0.0.2'])
CONF.set_default('driver_handles_share_servers', False)
CONF.set_default('reserved_share_percentage', 50)
@ -108,7 +108,7 @@ class LVMShareDriverTestCase(test.TestCase):
self.access = fake_access()
self.snapshot = fake_snapshot()
self.server = {
'public_address': self.fake_conf.lvm_share_export_ip,
'public_addresses': self.fake_conf.lvm_share_export_ips,
'instance_id': 'LVM',
'lock_name': 'manila_lvm',
}
@ -148,13 +148,33 @@ class LVMShareDriverTestCase(test.TestCase):
self.assertRaises(exception.InvalidParameterValue,
self._driver.check_for_setup_error)
def test_check_for_setup_error_no_export_ip(self):
def test_check_for_setup_error_deprecated_export_ip(self):
def exec_runner(*ignore_args, **ignore_kwargs):
return '\n fake1\n fakevg\n fake2\n', ''
fake_utils.fake_execute_set_repliers([('vgs --noheadings -o name',
exec_runner)])
CONF.set_default('lvm_share_export_ip', None)
CONF.set_default('lvm_share_export_ip', CONF.lvm_share_export_ips[0])
CONF.set_default('lvm_share_export_ips', None)
self.assertIsNone(self._driver.check_for_setup_error())
def test_check_for_setup_error_no_export_ips(self):
def exec_runner(*ignore_args, **ignore_kwargs):
return '\n fake1\n fakevg\n fake2\n', ''
fake_utils.fake_execute_set_repliers([('vgs --noheadings -o name',
exec_runner)])
CONF.set_default('lvm_share_export_ips', None)
self.assertRaises(exception.InvalidParameterValue,
self._driver.check_for_setup_error)
def test_check_for_setup_error_both_export_ip_and_ips(self):
def exec_runner(*ignore_args, **ignore_kwargs):
return '\n fake1\n fakevg\n fake2\n', ''
fake_utils.fake_execute_set_repliers([('vgs --noheadings -o name',
exec_runner)])
CONF.set_default('lvm_share_export_ip', CONF.lvm_share_export_ips[0])
self.assertRaises(exception.InvalidParameterValue,
self._driver.check_for_setup_error)

15
releasenotes/notes/lvm-export-ips-5f73f30df94381d3.yaml Normal file
View File

@ -0,0 +1,15 @@
---
features:
- Added new config option 'lvm_share_export_ips' which
allows a list of IP addresses to use for export
locations for the LVM driver. Every share created
will be exported on every IP address. This new option
supercedes 'lvm_share_export_ip'.
upgrade:
- After upgrading, rename lvm_share_export_ip to
lvm_share_export_ips in the manila.conf file to avoid
a deprecation warning. As long as the list remains a
single element, functionality is unchanged.
deprecations:
- The 'lvm_share_export_ip' option is deprecated and
will be removed. Use 'lvm_share_export_ips' instead.