Designate in Kolla¶
Overview¶
Designate provides DNSaaS services for OpenStack:
- REST API for domain/record management
- Multi-tenant
- Integrated with Keystone for authentication
- Framework in place to integrate with Nova and Neutron notifications (for auto-generated records)
- Support for PowerDNS and Bind9 out of the box
Configuration on Kolla deployment¶
Enable Designate service in /etc/kolla/globals.yml
enable_designate: "yes"
Configure Designate options in /etc/kolla/globals.yml
Important
Designate MDNS node requires the dns_interface to be reachable from
public network.
dns_interface: "eth1"
designate_backend: "bind9"
designate_ns_record: "sample.openstack.org"
Neutron and Nova Integration¶
Create default Designate Zone for Neutron:
$ openstack zone create --email admin@sample.openstack.org sample.openstack.org.
Create designate-sink custom configuration folder:
$ mkdir -p /etc/kolla/config/designate/designate-sink/
Append Designate Zone ID in /etc/kolla/config/designate/designate-sink.conf
[handler:nova_fixed]
zone_id = <ZONE_ID>
[handler:neutron_floatingip]
zone_id = <ZONE_ID>
Reconfigure Designate:
$ kolla-ansible reconfigure -i <INVENTORY_FILE> --tags designate
Verify operation¶
List available networks:
$ neutron net-list
Associate a domain to a network:
$ neutron net-update <NETWORK_ID> --dns_domain sample.openstack.org.
Start an instance:
$ openstack server create \
--image cirros \
--flavor m1.tiny \
--key-name mykey \
--nic net-id=${NETWORK_ID} \
my-vm
Check DNS records in Designate:
$ designate record-list sample.openstack.org.
+--------------------------------------+------+---------------------------------------+---------------------------------------------+
| id | type | name | data |
+--------------------------------------+------+---------------------------------------+---------------------------------------------+
| 5aec6f5b-2121-4a2e-90d7-9e4509f79506 | SOA | sample.openstack.org. | sample.openstack.org. |
| | | | admin.sample.openstack.org. 1485266928 3514 |
| | | | 600 86400 3600 |
| 578dc94a-df74-4086-a352-a3b2db9233ae | NS | sample.openstack.org. | sample.openstack.org. |
| de9ff01e-e9ef-4a0f-88ed-6ec5ecabd315 | A | 192-168-190-232.sample.openstack.org. | 192.168.190.232 |
| f67645ee-829c-4154-a988-75341050a8d6 | A | my-vm.None.sample.openstack.org. | 192.168.190.232 |
| e5623d73-4f9f-4b54-9045-b148e0c3342d | A | my-vm.sample.openstack.org. | 192.168.190.232 |
+--------------------------------------+------+---------------------------------------+---------------------------------------------+
Query instance DNS information to Designate dns_interface IP address:
$ dig +short -p 5354 @<DNS_INTERFACE_IP> my-vm.sample.openstack.org. A
192.168.190.232
For more information about how Designate works, see Designate, a DNSaaS component for OpenStack.