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OpenStack Zed : Configure Designate (Network Node)2023/06/29

 
Install OpenStack DNS Service (Designate).
This example is based on the environment like follows.
Install Designate services on Network Node and also install BIND 9 as a backend DNS service on it.
------------+--------------------------+--------------------------+------------
            |                          |                          |
        eth0|10.0.0.30             eth0|10.0.0.50             eth0|10.0.0.51
+-----------+-----------+  +-----------+-----------+  +-----------+-----------+
|   [ dlp.srv.world ]   |  | [ network.srv.world ] |  |  [ node01.srv.world ] |
|     (Control Node)    |  |     (Network Node)    |  |     (Compute Node)    |
|                       |  |                       |  |                       |
|  MariaDB    RabbitMQ  |  |  Neutron L2/L3 Agent  |  |        Libvirt        |
|  Memcached  Nginx     |  |   Neutron Metadata    |  |      Nova Compute     |
|  Keystone   httpd     |  |     Open vSwitch      |  |    Neutron L2 Agent   |
|  Glance     Nova API  |  |     iSCSI Target      |  |      Open vSwitch     |
|  Neutron Server       |  |     Cinder Volume     |  |                       |
|  Neutron Metadata     |  |  Designate Services   |  |                       |
|  Cinder API           |  |        Nginx          |  |                       |
+-----------------------+  +-----------------------+  +-----------------------+

[1] Install Designate services and BIND 9. That's OK with [No] to all questions during the installation.
root@network:~#
apt -y install designate-api designate-central designate-worker designate-producer designate-mdns python3-designateclient bind9 bind9utils nginx libnginx-mod-stream
[2] Configure BIND.
root@network:~#
rndc-confgen -a -k designate -c /etc/bind/designate.key

wrote key file "/etc/bind/designate.key"
root@network:~#
chown bind:designate /etc/bind/designate.key

root@network:~#
chmod 640 /etc/bind/designate.key

root@network:~#
mv /etc/bind/named.conf.options /etc/bind/named.conf.options.org

root@network:~#
vi /etc/bind/named.conf.options
# create new

options {
        directory "/var/cache/bind";
        listen-on port 53 { any; };
        listen-on-v6 port 53 { none; };
        # replace query range to your environment
        allow-query     { localhost; 10.0.0.0/24; };
        allow-new-zones yes;
        request-ixfr no;
        recursion no;
        dnssec-validation auto;
        auth-nxdomain no;
};
include "/etc/bind/designate.key";
controls {
    inet 0.0.0.0 port 953
    allow { localhost; } keys { "designate"; };
};

root@network:~#
chmod 644 /etc/bind/named.conf.options

root@network:~#
chown -R bind. /etc/bind

root@network:~#
systemctl restart bind9

[3] Configure Designate.
root@network:~#
mv /etc/designate/designate.conf /etc/designate/designate.conf.org

root@network:~#
vi /etc/designate/designate.conf
# create new

[DEFAULT]
log_dir = /var/log/designate
# RabbitMQ connection info
transport_url = rabbit://openstack:password@dlp.srv.world
root_helper = sudo designate-rootwrap /etc/designate/rootwrap.conf

[database]
# MariaDB connection info
connection = mysql+pymysql://designate:password@dlp.srv.world/designate

[service:api]
listen = 127.0.0.1:9001
auth_strategy = keystone
api_base_uri = https://network.srv.world:9001
enable_api_v2 = True
enabled_extensions_v2 = quotas, reports

# Keystone auth info
[keystone_authtoken]
www_authenticate_uri = https://dlp.srv.world:5000
auth_url = https://dlp.srv.world:5000
memcached_servers = dlp.srv.world:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = designate
password = servicepassword
# if using self-signed certs on Apache2 Keystone, turn to [true]
insecure = false

[service:worker]
enabled = True
notify = True

[storage:sqlalchemy]
# MariaDB connection info
connection = mysql+pymysql://designate:password@dlp.srv.world/designate

[oslo_policy]
enforce_new_defaults = false

root@network:~#
chmod 640 /etc/designate/designate.conf

root@network:~#
chgrp designate /etc/designate/designate.conf

root@network:~#
su -s /bin/sh -c "designate-manage database sync" designate

root@network:~#
sed -i -e "s/UWSGI_BIND_IP=\"\"/UWSGI_BIND_IP=\"127.0.0.1\"/" /etc/init.d/designate-api

root@network:~#
systemctl restart designate-central designate-api

root@network:~#
systemctl enable designate-central designate-api
root@network:~#
vi /etc/designate/pools.yaml
# create new (replace hostname and IP address to your own environment)

- name: default
  description: Default Pool
  attributes: {}
  ns_records:
    - hostname: network.srv.world.
      priority: 1
  nameservers:
    - host: 10.0.0.50
      port: 53
  targets:
    - type: bind9
      description: BIND9 Server
      masters:
        - host: 10.0.0.50
          port: 5354
      options:
        host: 10.0.0.50
        port: 53
        rndc_host: 10.0.0.50
        rndc_port: 953
        rndc_key_file: /etc/bind/designate.key

root@network:~#
chmod 640 /etc/designate/pools.yaml

root@network:~#
chgrp designate /etc/designate/pools.yaml

root@network:~#
su -s /bin/sh -c "designate-manage pool update" designate

Updating Pools Configuration
****************************
root@network:~#
systemctl restart designate-worker designate-producer designate-mdns

root@network:~#
systemctl enable designate-worker designate-producer designate-mdns
[4] Get valid SSL/TLS certificate or Create self-signed certificate for Network Node and configure Nginx for proxy settings.
root@network:~#
unlink /etc/nginx/sites-enabled/default

root@network:~#
vi /etc/nginx/nginx.conf
# add to the end

stream {
    upstream designate-api {
        server 127.0.0.1:9001;
    }
    server {
        listen 10.0.0.50:9001 ssl;
        proxy_pass designate-api;
    }
    ssl_certificate "/etc/letsencrypt/live/network.srv.world/fullchain.pem";
    ssl_certificate_key "/etc/letsencrypt/live/network.srv.world/privkey.pem";
}

root@network:~#
systemctl restart nginx

[5] Verify the status of services on a Node. That's OK if all status are [Up].
root@dlp ~(keystone)#
apt -y install python3-designateclient
root@dlp ~(keystone)#
openstack dns service list

+--------------------------------------+-------------------+--------------+--------+-------+--------------+
| id                                   | hostname          | service_name | status | stats | capabilities |
+--------------------------------------+-------------------+--------------+--------+-------+--------------+
| a399258c-c4a3-40c1-9d10-f02b914a7b5d | network.srv.world | central      | UP     | -     | -            |
| 7befb68f-2637-454c-b5e6-534c536fab63 | network.srv.world | mdns         | UP     | -     | -            |
| 18421283-cca3-418c-b918-caff10815826 | network.srv.world | worker       | UP     | -     | -            |
| 9658ae4e-674f-4aaa-9c91-47b96113351d | network.srv.world | producer     | UP     | -     | -            |
+--------------------------------------+-------------------+--------------+--------+-------+--------------+
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