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-rw-r--r--nova/api/metadata/base.py6
-rw-r--r--nova/conf/api.py24
-rw-r--r--nova/conf/network.py18
-rw-r--r--nova/network/linux_net.py10
-rw-r--r--nova/tests/unit/network/test_linux_net.py8
-rw-r--r--nova/tests/unit/test_metadata.py4
-rw-r--r--releasenotes/notes/undeprecate-dhcp_domain-opt-77c9154c5b06e0ff.yaml8
7 files changed, 47 insertions, 31 deletions
diff --git a/nova/api/metadata/base.py b/nova/api/metadata/base.py
index e3e25fe541..42e76a86b7 100644
--- a/nova/api/metadata/base.py
+++ b/nova/api/metadata/base.py
@@ -528,8 +528,10 @@ class InstanceMetadata(object):
return self._check_version(required, requested, OPENSTACK_VERSIONS)
def _get_hostname(self):
- if CONF.dhcp_domain:
- return '.'.join([self.instance.hostname, CONF.dhcp_domain])
+ # TODO(stephenfin): At some point in the future, we may wish to
+ # retrieve this information from neutron.
+ if CONF.api.dhcp_domain:
+ return '.'.join([self.instance.hostname, CONF.api.dhcp_domain])
return self.instance.hostname
diff --git a/nova/conf/api.py b/nova/conf/api.py
index 574370e68e..a36e9e2f1b 100644
--- a/nova/conf/api.py
+++ b/nova/conf/api.py
@@ -209,6 +209,30 @@ running nova-metadata API service per cell, you should also configure each
Neutron metadata-agent to point to the corresponding nova-metadata API
service.
"""),
+ cfg.StrOpt("dhcp_domain",
+ deprecated_group="DEFAULT",
+ default="novalocal",
+ help="""
+Domain name used to configure FQDN for instances.
+
+This option has two purposes:
+
+#. For *neutron* and *nova-network* users, it is used to configure a
+ fully-qualified domain name for instance hostnames. If unset, only the
+ hostname without a domain will be configured.
+#. (Deprecated) For *nova-network* users, this option configures the DNS
+ domains used for the DHCP server. Refer to the ``--domain`` option of the
+ ``dnsmasq`` utility for more information. Like *nova-network* itself, this
+ purpose is deprecated.
+
+Possible values:
+
+* Any string that is a valid domain name.
+
+Related options:
+
+* ``use_neutron``
+"""),
]
file_opts = [
diff --git a/nova/conf/network.py b/nova/conf/network.py
index 4ab64c1c7b..5e63231962 100644
--- a/nova/conf/network.py
+++ b/nova/conf/network.py
@@ -465,24 +465,6 @@ Related options:
* ``use_neutron``
"""),
- cfg.StrOpt("dhcp_domain",
- default="novalocal",
- deprecated_for_removal=True,
- deprecated_since='15.0.0',
- deprecated_reason="""
-nova-network is deprecated, as are any related configuration options.
-""",
- help="""
-This option allows you to specify the domain for the DHCP server.
-
-Possible values:
-
-* Any string that is a valid domain name.
-
-Related options:
-
-* ``use_neutron``
-"""),
cfg.StrOpt("l3_lib",
default="nova.network.l3.LinuxNetL3",
deprecated_for_removal=True,
diff --git a/nova/network/linux_net.py b/nova/network/linux_net.py
index da06724d0b..9abecc546d 100644
--- a/nova/network/linux_net.py
+++ b/nova/network/linux_net.py
@@ -1007,8 +1007,8 @@ def restart_dhcp(context, dev, network_ref, fixedips):
# dnsmasq currently gives an error for an empty domain,
# rather than ignoring. So only specify it if defined.
- if CONF.dhcp_domain:
- cmd.append('--domain=%s' % CONF.dhcp_domain)
+ if CONF.api.dhcp_domain:
+ cmd.append('--domain=%s' % CONF.api.dhcp_domain)
dns_servers = CONF.dns_server
if CONF.use_network_dns_servers:
@@ -1096,20 +1096,20 @@ def _host_dhcp(fixedip):
net = _host_dhcp_network(fixedip.virtual_interface_id)
return '%s,%s.%s,%s,net:%s' % (fixedip.virtual_interface.address,
hostname,
- CONF.dhcp_domain,
+ CONF.api.dhcp_domain,
fixedip.address,
net)
else:
return '%s,%s.%s,%s' % (fixedip.virtual_interface.address,
hostname,
- CONF.dhcp_domain,
+ CONF.api.dhcp_domain,
fixedip.address)
def _host_dns(fixedip):
return '%s\t%s.%s' % (fixedip.address,
fixedip.instance.hostname,
- CONF.dhcp_domain)
+ CONF.api.dhcp_domain)
def _host_dhcp_opts(vif_id=None, gateway=None):
diff --git a/nova/tests/unit/network/test_linux_net.py b/nova/tests/unit/network/test_linux_net.py
index d40598487a..f184f8ffa9 100644
--- a/nova/tests/unit/network/test_linux_net.py
+++ b/nova/tests/unit/network/test_linux_net.py
@@ -734,10 +734,10 @@ class LinuxNetworkTestCase(test.NoDBTestCase):
dev = 'br100'
- default_domain = CONF.dhcp_domain
+ default_domain = CONF.api.dhcp_domain
for domain in ('', default_domain):
executes = []
- self.flags(dhcp_domain=domain)
+ self.flags(dhcp_domain=domain, group='api')
fixedips = self._get_fixedips(network_ref)
linux_net.restart_dhcp(self.context, dev, network_ref, fixedips)
expected = ['env',
@@ -761,8 +761,8 @@ class LinuxNetworkTestCase(test.NoDBTestCase):
'--no-hosts',
'--leasefile-ro']
- if CONF.dhcp_domain:
- expected.append('--domain=%s' % CONF.dhcp_domain)
+ if CONF.api.dhcp_domain:
+ expected.append('--domain=%s' % CONF.api.dhcp_domain)
if extra_expected:
expected += extra_expected
diff --git a/nova/tests/unit/test_metadata.py b/nova/tests/unit/test_metadata.py
index d8fe323956..a1ec39896a 100644
--- a/nova/tests/unit/test_metadata.py
+++ b/nova/tests/unit/test_metadata.py
@@ -311,14 +311,14 @@ class MetadataTestCase(test.TestCase):
self._test_security_groups()
def test_local_hostname(self):
- self.flags(dhcp_domain=None)
+ self.flags(dhcp_domain=None, group='api')
md = fake_InstanceMetadata(self, self.instance.obj_clone())
data = md.get_ec2_metadata(version='2009-04-04')
self.assertEqual(data['meta-data']['local-hostname'],
self.instance['hostname'])
def test_local_hostname_fqdn(self):
- self.flags(dhcp_domain='fakedomain')
+ self.flags(dhcp_domain='fakedomain', group='api')
md = fake_InstanceMetadata(self, self.instance.obj_clone())
data = md.get_ec2_metadata(version='2009-04-04')
self.assertEqual('%s.fakedomain' % self.instance['hostname'],
diff --git a/releasenotes/notes/undeprecate-dhcp_domain-opt-77c9154c5b06e0ff.yaml b/releasenotes/notes/undeprecate-dhcp_domain-opt-77c9154c5b06e0ff.yaml
new file mode 100644
index 0000000000..794431fd1c
--- /dev/null
+++ b/releasenotes/notes/undeprecate-dhcp_domain-opt-77c9154c5b06e0ff.yaml
@@ -0,0 +1,8 @@
+---
+other:
+ - |
+ The ``dhcp_domain`` option has been undeprecated and moved to the ``[api]``
+ group. It is used by the metadata service to configure fully-qualified
+ domain names for instances, in addition to its role configuring DHCP
+ services for *nova-network*. This use case was missed when deprecating the
+ option initially.