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This article mainly introduces how to use OpenStack Designate to build a DNS as a service, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand.

Designate is a multi-tenant DNS as a service that includes a REST API for domain name and record management, an integrated Neutron framework, and support for Bind9.

DNSaaS can provide:

A clean REST API that manages areas and records

Automatically generate records (integrated OpenStack)

Support for multiple authorized name servers

Can host multiple projects / organizations

Designate's architecture

This article explains how to manually install and configure the current version of Designate on CentOS and RHEL, but the same configuration can be used on other distributions.

Install Designate on OpenStack

In my GitHub repository, I have put demonstration settings for Ansible's bind and Designate roles.

This setting assumes that the bing service is installed outside the OpenStack controller node (even if you can install bind locally).

1. Install Designate and bind software packages on the OpenStack control node:

# yum install openstack-designate-* bind bind-utils-y

2. Create Designate database and users:

MariaDB [(none)] > CREATE DATABASE designate CHARACTER SET utf8 COLLATE utf8_general_ci; MariaDB [(none)] > GRANT ALL PRIVILEGES ON designate.* TO\ 'designate'@'localhost' IDENTIFIED BY' rhlab123'; MariaDB [(none)] > GRANT ALL PRIVILEGES ON designate.* TO 'designate'@'%'\ IDENTIFIED BY' rhlab123'

Note: the bind package must be installed outside the control node for the remote name service control Remote Name Daemon Control (RNDC) to function properly.

Configure bind (DNS Server)

1. Generate RNDC file:

Rndc-confgen-a-k designate-c / etc/rndc.key-r / dev/urandom cat

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