Instance is not able to obtain IP from DHCP

Issue

• All instances in one of our project are not able to obtain IP from DHCP. Instance reboot does not help.

• With rule ce75d320-ad19-4e75-a34b-2f72b5599c01, DHCP works. If we remove that rule, DHCP is not served to the VM.

• Here is the port properties:

$ openstack port show d5d5ca71-f4bd-4e45-a701-d920bbe6d10c -f json
{
  "allowed_address_pairs": "",
  "extra_dhcp_opts": "",
  "updated_at": "2020-05-22T13:18:21Z",
  "dns_domain": null,
  "device_owner": "compute:nova",
  "revision_number": 12,
  "port_security_enabled": true,
  "fixed_ips": "ip_address='10.10.10.10', subnet_id='89387a48-5c5e-4dd0-8e0a-2181c97ec19a'",
  "id": "d5d5ca71-f4bd-4e45-a701-d920bbe6d10c",
  "description": "",
  "binding_vnic_type": "normal",
  "option_name": null,
  "qos_policy_id": null,
  "mac_address": "fa:16:3e:00:00:00",
  "project_id": "4f4f0e4dac384f3c9faa7d15b5f8c0a1",
  "status": "ACTIVE",
  "binding_profile": "",
  "binding_vif_type": "ovs",
  "binding_vif_details": "port_filter='True'",
  "tags": "",
  "option_value": null,
  "dns_assignment": "fqdn='host-10-10-10-10.openstacklocal.', hostname='host-10-10-10-10', ip_address='10.10.10.10'",
  "trunk_details": null,
  "security_group_ids": "f3bbc5b3-b095-4dee-bf3c-7f344c42b0fe",
  "ip_address": null,
  "device_id": "e22952cf-0ed6-4b2a-9213-3e3e29145814",
  "name": "",
  "admin_state_up": "UP",
  "network_id": "5f60202f-e4e2-4a4e-81f9-c7e2545dc125",
  "dns_name": "",
  "created_at": "2020-05-22T12:08:58Z",
  "subnet_id": null,
  "data_plane_status": null,
  "binding_host_id": "overcloud-compute-0.localdomain"
}

• Here is the security group rules list:

$ openstack security group show f3bbc5b3-b095-4dee-bf3c-7f344c42b0fe
+-----------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field           | Value                                                                                                                                                                                                                                          |
+-----------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| created_at      | 2019-09-17T15:41:26Z                                                                                                                                                                                                                           |
| description     | testing purposes, tcp/22, tcp/53, tcp/80, icmp only                                                                                                                                                                                            |
| id              | f3bbc5b3-b095-4dee-bf3c-7f344c42b0fe                                                                                                                                                                                                           |
| name            | test-bence                                                                                                                                                                                                                                     |
| project_id      | 4f4f0e4dac384f3c9faa7d15b5f8c0a1                                                                                                                                                                                                               |
| revision_number | 28                                                                                                                                                                                                                                             |
| rules           | created_at='2019-09-17T15:43:23Z', direction='ingress', ethertype='IPv4', id='5e8e6753-77be-4a41-9718-b538073464c0', protocol='icmp', remote_ip_prefix='0.0.0.0/0', updated_at='2019-09-17T15:43:23Z'                                          |
|                 | created_at='2019-09-17T15:42:39Z', direction='ingress', ethertype='IPv4', id='983ef02b-6fae-40cf-8afd-edb1952f86f0', port_range_max='22', port_range_min='22', protocol='tcp', remote_ip_prefix='0.0.0.0/0', updated_at='2019-09-17T15:42:39Z' |
|                 | created_at='2020-05-25T10:02:19Z', direction='egress', ethertype='IPv4', id='ce75d320-ad19-4e75-a34b-2f72b5599c01', port_range_max='67', port_range_min='67', protocol='udp', remote_ip_prefix='0.0.0.0/0', updated_at='2020-05-25T10:02:19Z'  |
|                 | created_at='2020-05-20T19:45:35Z', direction='egress', ethertype='IPv4', id='e07e313c-1ded-4cdc-a67b-933980771361', protocol='icmp', remote_ip_prefix='0.0.0.0/0', updated_at='2020-05-20T19:45:35Z'                                           |
| tags            | []                                                                                                                                                                                                                                             |
| updated_at      | 2020-05-25T10:02:19Z                                                                                                                                                                                                                           |
+-----------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+