Public bug reported: Description: ================= When trying to create a new port using an available IP in the allocation pool of a VLAN neutron network, creation fails with error: IP address 10.41.8.3 already allocated in subnet afb678c6-a152-4f1d-8d77-03b9167520cc
Precondition:
=================
A port using the same IP was previously created and then deleted.
How to reproduce:
=================
I have the following network:
$ openstack network show e30b938b-210d-45c2-894c-95c0c5d08f79
+---------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value
|
+---------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
| admin_state_up | UP
|
| availability_zone_hints |
|
| availability_zones |
|
| created_at | 2020-11-25T10:55:32Z
|
| description |
|
| dns_domain |
|
| id | e30b938b-210d-45c2-894c-95c0c5d08f79
|
| ipv4_address_scope | None
|
| ipv6_address_scope | None
|
| is_default | False
|
| is_vlan_transparent | None
|
| location | cloud='', project.domain_id=,
project.domain_name=, project.id='606e529ab1bc4b18a6d5dbf8735b9815',
project.name=, region_name='us-test', zone= |
| mtu | 1500
|
| name | test
|
| port_security_enabled | True
|
| project_id | 606e529ab1bc4b18a6d5dbf8735b9815
|
| provider:network_type | vlan
|
| provider:physical_network | physnet1
|
| provider:segmentation_id | 2220
|
| qos_policy_id | None
|
| revision_number | 11
|
| router:external | External
|
| segments | None
|
| shared | False
|
| status | ACTIVE
|
| subnets | afb678c6-a152-4f1d-8d77-03b9167520cc
|
| tags |
|
| updated_at | 2021-01-20T11:27:57Z
|
+---------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
And a subnet
$ openstack subnet show afb678c6-a152-4f1d-8d77-03b9167520cc
+----------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value
|
+----------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
| allocation_pools | 10.41.8.3-10.41.8.4
|
| cidr | 10.41.8.0/29
|
| created_at | 2020-11-25T10:55:34Z
|
| description |
|
| dns_nameservers |
|
| dns_publish_fixed_ip | None
|
| enable_dhcp | True
|
| gateway_ip | 10.41.8.1
|
| host_routes |
|
| id | afb678c6-a152-4f1d-8d77-03b9167520cc
|
| ip_version | 4
|
| ipv6_address_mode | None
|
| ipv6_ra_mode | None
|
| location | cloud='', project.domain_id=, project.domain_name=,
project.id='606e529ab1bc4b18a6d5dbf8735b9815', project.name=,
region_name='us-test', zone= |
| name | test-subnet
|
| network_id | e30b938b-210d-45c2-894c-95c0c5d08f79
|
| prefix_length | None
|
| project_id | 606e529ab1bc4b18a6d5dbf8735b9815
|
| revision_number | 9
|
| segment_id | None
|
| service_types |
|
| subnetpool_id | None
|
| tags |
|
| updated_at | 2021-01-20T11:27:57Z
|
+----------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
Create a port with a fixed ip:
$ openstack port create --debug --network e30b938b-210d-45c2-894c-95c0c5d08f79
--fixed-ip subnet=test-subnet,ip-address=10.41.8.3 test-port
Delete the same port
$ openstack port delete a7a37bbf-129a-4980-a6e8-268c62ea552d
Try to create again the same port with same IP and creation fail
$ openstack port create --debug --network e30b938b-210d-45c2-894c-95c0c5d08f79
--fixed-ip subnet=test-subnet,ip-address=10.41.8.3 test-port
ConflictException: 409: Client Error for url:
https://neutron.test.com:9696/v2.0/ports, IP address 10.41.8.3 already
allocated in subnet afb678c6-a152-4f1d-8d77-03b9167520cc
ipallocations table show that the IP is actually available:
mysql> select * from ipallocations where
network_id="e30b938b-210d-45c2-894c-95c0c5d08f79";
+--------------------------------------+------------+--------------------------------------+--------------------------------------+
| port_id | ip_address | subnet_id
| network_id |
+--------------------------------------+------------+--------------------------------------+--------------------------------------+
| 319c6b0d-1970-485a-ade6-914b3fa6abc9 | 10.41.8.4 |
afb678c6-a152-4f1d-8d77-03b9167520cc | e30b938b-210d-45c2-894c-95c0c5d08f79 |
+--------------------------------------+------------+--------------------------------------+--------------------------------------+
1 row in set (0.00 sec)
mysql> select * from ipallocations where
subnet_id="afb678c6-a152-4f1d-8d77-03b9167520cc";
+--------------------------------------+------------+--------------------------------------+--------------------------------------+
| port_id | ip_address | subnet_id
| network_id |
+--------------------------------------+------------+--------------------------------------+--------------------------------------+
| 319c6b0d-1970-485a-ade6-914b3fa6abc9 | 10.41.8.4 |
afb678c6-a152-4f1d-8d77-03b9167520cc | e30b938b-210d-45c2-894c-95c0c5d08f79 |
+--------------------------------------+------------+--------------------------------------+--------------------------------------+
1 row in set (0.00 sec)
Expected output
=================
Port is created successfully
Actual output
=================
Port creation fails with:
ConflictException: 409: Client Error for url:
https://neutron.test.com:9696/v2.0/ports, IP address 10.41.8.3 already
allocated in subnet afb678c6-a152-4f1d-8d77-03b9167520cc
Version:
=================
This is a cloud bionic-ussuri using ovn deployed using charmed OpenStack
Charms revisions:
charm-neutron-api rev 288
charm-neutron-api-plugin-ovn rev 1
charm-ovn-central rev 1
charm-ovn-chassis rev 4
neutron pkgs versions:
ii neutron-common 2:16.1.0-0ubuntu1~cloud0
ii neutron-fwaas-common 1:16.0.0-0ubuntu0.20.04.1~cloud0
ii neutron-plugin-ml2 2:16.1.0-0ubuntu1~cloud0
ii neutron-server 2:16.1.0-0ubuntu1~cloud0
Perceived severity
=================
Critical
** Affects: charm-neutron-api
Importance: Undecided
Status: New
** Affects: neutron
Importance: Undecided
Status: New
** Also affects: charm-neutron-api
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1912513
Title:
Port creation fails with error IP already allocated but the IP is
available
Status in OpenStack neutron-api charm:
New
Status in neutron:
New
Bug description:
Description:
=================
When trying to create a new port using an available IP in the allocation pool
of a VLAN neutron network, creation fails with error:
IP address 10.41.8.3 already allocated in subnet
afb678c6-a152-4f1d-8d77-03b9167520cc
Precondition:
=================
A port using the same IP was previously created and then deleted.
How to reproduce:
=================
I have the following network:
$ openstack network show e30b938b-210d-45c2-894c-95c0c5d08f79
+---------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value
|
+---------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
| admin_state_up | UP
|
| availability_zone_hints |
|
| availability_zones |
|
| created_at | 2020-11-25T10:55:32Z
|
| description |
|
| dns_domain |
|
| id | e30b938b-210d-45c2-894c-95c0c5d08f79
|
| ipv4_address_scope | None
|
| ipv6_address_scope | None
|
| is_default | False
|
| is_vlan_transparent | None
|
| location | cloud='', project.domain_id=,
project.domain_name=, project.id='606e529ab1bc4b18a6d5dbf8735b9815',
project.name=, region_name='us-test', zone= |
| mtu | 1500
|
| name | test
|
| port_security_enabled | True
|
| project_id | 606e529ab1bc4b18a6d5dbf8735b9815
|
| provider:network_type | vlan
|
| provider:physical_network | physnet1
|
| provider:segmentation_id | 2220
|
| qos_policy_id | None
|
| revision_number | 11
|
| router:external | External
|
| segments | None
|
| shared | False
|
| status | ACTIVE
|
| subnets | afb678c6-a152-4f1d-8d77-03b9167520cc
|
| tags |
|
| updated_at | 2021-01-20T11:27:57Z
|
+---------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
And a subnet
$ openstack subnet show afb678c6-a152-4f1d-8d77-03b9167520cc
+----------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
| Field | Value
|
+----------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
| allocation_pools | 10.41.8.3-10.41.8.4
|
| cidr | 10.41.8.0/29
|
| created_at | 2020-11-25T10:55:34Z
|
| description |
|
| dns_nameservers |
|
| dns_publish_fixed_ip | None
|
| enable_dhcp | True
|
| gateway_ip | 10.41.8.1
|
| host_routes |
|
| id | afb678c6-a152-4f1d-8d77-03b9167520cc
|
| ip_version | 4
|
| ipv6_address_mode | None
|
| ipv6_ra_mode | None
|
| location | cloud='', project.domain_id=, project.domain_name=,
project.id='606e529ab1bc4b18a6d5dbf8735b9815', project.name=,
region_name='us-test', zone= |
| name | test-subnet
|
| network_id | e30b938b-210d-45c2-894c-95c0c5d08f79
|
| prefix_length | None
|
| project_id | 606e529ab1bc4b18a6d5dbf8735b9815
|
| revision_number | 9
|
| segment_id | None
|
| service_types |
|
| subnetpool_id | None
|
| tags |
|
| updated_at | 2021-01-20T11:27:57Z
|
+----------------------+------------------------------------------------------------------------------------------------------------------------------------------------+
Create a port with a fixed ip:
$ openstack port create --debug --network
e30b938b-210d-45c2-894c-95c0c5d08f79 --fixed-ip
subnet=test-subnet,ip-address=10.41.8.3 test-port
Delete the same port
$ openstack port delete a7a37bbf-129a-4980-a6e8-268c62ea552d
Try to create again the same port with same IP and creation fail
$ openstack port create --debug --network
e30b938b-210d-45c2-894c-95c0c5d08f79 --fixed-ip
subnet=test-subnet,ip-address=10.41.8.3 test-port
ConflictException: 409: Client Error for url:
https://neutron.test.com:9696/v2.0/ports, IP address 10.41.8.3 already
allocated in subnet afb678c6-a152-4f1d-8d77-03b9167520cc
ipallocations table show that the IP is actually available:
mysql> select * from ipallocations where
network_id="e30b938b-210d-45c2-894c-95c0c5d08f79";
+--------------------------------------+------------+--------------------------------------+--------------------------------------+
| port_id | ip_address | subnet_id
| network_id |
+--------------------------------------+------------+--------------------------------------+--------------------------------------+
| 319c6b0d-1970-485a-ade6-914b3fa6abc9 | 10.41.8.4 |
afb678c6-a152-4f1d-8d77-03b9167520cc | e30b938b-210d-45c2-894c-95c0c5d08f79 |
+--------------------------------------+------------+--------------------------------------+--------------------------------------+
1 row in set (0.00 sec)
mysql> select * from ipallocations where
subnet_id="afb678c6-a152-4f1d-8d77-03b9167520cc";
+--------------------------------------+------------+--------------------------------------+--------------------------------------+
| port_id | ip_address | subnet_id
| network_id |
+--------------------------------------+------------+--------------------------------------+--------------------------------------+
| 319c6b0d-1970-485a-ade6-914b3fa6abc9 | 10.41.8.4 |
afb678c6-a152-4f1d-8d77-03b9167520cc | e30b938b-210d-45c2-894c-95c0c5d08f79 |
+--------------------------------------+------------+--------------------------------------+--------------------------------------+
1 row in set (0.00 sec)
Expected output
=================
Port is created successfully
Actual output
=================
Port creation fails with:
ConflictException: 409: Client Error for url:
https://neutron.test.com:9696/v2.0/ports, IP address 10.41.8.3 already
allocated in subnet afb678c6-a152-4f1d-8d77-03b9167520cc
Version:
=================
This is a cloud bionic-ussuri using ovn deployed using charmed OpenStack
Charms revisions:
charm-neutron-api rev 288
charm-neutron-api-plugin-ovn rev 1
charm-ovn-central rev 1
charm-ovn-chassis rev 4
neutron pkgs versions:
ii neutron-common 2:16.1.0-0ubuntu1~cloud0
ii neutron-fwaas-common 1:16.0.0-0ubuntu0.20.04.1~cloud0
ii neutron-plugin-ml2 2:16.1.0-0ubuntu1~cloud0
ii neutron-server 2:16.1.0-0ubuntu1~cloud0
Perceived severity
=================
Critical
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https://bugs.launchpad.net/charm-neutron-api/+bug/1912513/+subscriptions
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