Development Environment on Ubuntu¶

Designate is comprised of four main components Designate API, Designate Central, designate-mdns, and designate-pool-manager, supported by a few standard open source components. For more information see Architecture.

There are many different options for customizing Designate, and two of these options have a major impact on the installation process:

The storage backend used (SQLite or MySQL)
The DNS backend used (PowerDNS or BIND9)

This guide will walk you through setting up a typical development environment for Designate, using BIND9 as the DNS backend and MySQL as the storage backend. For a more complete discussion on installation & configuration options, please see Architecture.

For this guide you will need access to an Ubuntu Server (16.04).

Development Environment¶

Installing Designate¶

Install system package dependencies (Ubuntu)

$ sudo apt update
$ sudo apt install python-pip python-virtualenv libssl-dev libffi-dev git
$ sudo apt build-dep python-lxml

Clone the Designate repo

$ mkdir openstack
$ cd openstack
$ git clone https://opendev.org/openstack/designate.git
$ cd designate

Setup a virtualenv

Note

This step is necessary to allow the installation of an up-to-date pip, independent of the version packaged for Ubuntu. it is also useful in isolating the remainder of Designate’s dependencies from the rest of the system.

$ virtualenv .venv
$ . .venv/bin/activate

Install an up-to-date pip

$ pip install -U pip

Install Designate and its dependencies

$ pip install -e .

Change directories to the etc/designate folder.

Note

Everything from here on out should take place in or below your etc/designate folder

$ cd etc/designate

Create Designate’s config files by copying the sample config files

$ cp -a rootwrap.conf.sample rootwrap.conf

Make the directory for Designate’s state files

$ mkdir -p ../../state

Configuring Designate¶

Refer to Designate Configuration Guide for a sample configuration options.

Installing RabbitMQ¶

Install the RabbitMQ package

$ sudo apt install rabbitmq-server

Create a user:

$ sudo rabbitmqctl add_user designate designate

Give the user access to the / vhost:

$ sudo rabbitmqctl set_permissions -p "/" designate ".*" ".*" ".*"

Installing MySQL¶

Install the MySQL server package

$ sudo apt install mysql-server

If you do not have MySQL previously installed, you will be prompted to change the root password. By default, the MySQL root password for Designate is “password”. You can:

Change the root password to “password”
If you want your own password, edit the designate.conf file and change any instance of “mysql+pymysql://root:password@127.0.0.1/designate?charset=utf8” to “mysql+pymysql://root:YOUR_PASSWORD@127.0.0.1/designate?charset=utf8”

You can change your MySQL password anytime with the following command:

$ mysqladmin -u root -p password NEW_PASSWORD
Enter password <enter your old password>

Create the Designate tables

$ mysql -u root -p
Enter password: <enter your password here>

mysql> CREATE DATABASE `designate` CHARACTER SET utf8 COLLATE utf8_general_ci;
mysql> exit;

Install additional packages

$ sudo apt install libmysqlclient-dev
$ pip install pymysql

Installing BIND9¶

Install the DNS server, BIND9

$ sudo apt install bind9

Update the BIND9 Configuration

$ sudo editor /etc/bind/named.conf.options

Change the corresponding lines in the config file:

options {
  directory "/var/cache/bind";
  dnssec-validation auto;
  auth-nxdomain no; # conform to RFC1035
  listen-on-v6 { any; };
  allow-new-zones yes;
  request-ixfr no;
  recursion no;
};

Disable AppArmor for BIND9

$ sudo touch /etc/apparmor.d/disable/usr.sbin.named
$ sudo systemctl reload apparmor

Restart BIND9:

$ sudo systemctl restart bind9

Create and Import pools.yaml File¶

Create the pools.yaml file

$ editor pools.yaml

Copy or mirror the configuration from this sample file here:

- name: default
  # The name is immutable. There will be no option to change the name after
  # creation and the only way will to change it will be to delete it
  # (and all zones associated with it) and recreate it.
  description: Default BIND9 Pool

  attributes: {}

  # List out the NS records for zones hosted within this pool
  ns_records:
    - hostname: ns1-1.example.org.
      priority: 1

  # List out the nameservers for this pool. These are the actual BIND servers.
  # We use these to verify changes have propagated to all nameservers.
  nameservers:
    - host: 127.0.0.1
      port: 53

  # List out the targets for this pool. For BIND, most often, there will be one
  # entry for each BIND server.
  targets:
    - type: bind9
      description: BIND9 Server 1

      # List out the designate-mdns servers from which BIND servers should
      # request zone transfers (AXFRs) from.
      masters:
        - host: 127.0.0.1
          port: 5354

      # BIND Configuration options
      options:
        host: 127.0.0.1
        port: 53
        rndc_host: 127.0.0.1
        rndc_port: 953
        rndc_key_file: /etc/bind/rndc.key

  # Optional list of additional IP/Port's for which designate-mdns will send
  # DNS NOTIFY packets to
  # also_notifies:
  #  - host: 192.0.2.4
  #    port: 53

Initialize the Database¶

Sync the Designate database.

$ designate-manage database sync

Start the Central Service¶

Start the central service.

$ designate-central

You’ll now be seeing the log from the central service.

Initialize Pools Information¶

Import the pools.yaml file into Designate. It is important that designate-central is started before invoking this command

$ designate-manage pool update --file pools.yaml

Start the other Services¶

Open up some new ssh windows and log in to your server (or open some new screen/tmux sessions).

$ cd openstack/designate
$ . .venv/bin/activate

Start the other services

$ designate-api
$ designate-mdns
$ designate-worker
$ designate-producer

You’ll now be seeing the logs from the other services.

Exercising the API¶

Note

If you have a firewall enabled, make sure to open port 53, as well as Designate’s default port (9001).

Using a web browser, curl statement, or a REST client, calls can be made to the Designate API. You can find the various API calls on the api-ref document.

For example:

$ curl 127.0.0.1:9001/v2/zones -H 'Content-Type: application/json' --data '
  {
    "name": "example.com.",
    "email": "example@example.com"
  }'

{"status": "PENDING",.....
$ curl 127.0.0.1:9001/v2/zones
{"zones": [{"status": "ACTIVE",.....

The ACTIVE status shows that the zone propagated. So you should be able to perform a DNS query and see it:

$ dig @127.0.0.1 example.com SOA +short
ns1-1.example.org. example.example.com. 1487884120 3531 600 86400 3600

You can find the IP Address of your server by running

ip addr show eth0 | grep "inet\b" | awk '{print $2}' | cut -d/ -f1

If you have Keystone set up, you can use it by configuring the [keystone_authtoken] section and changing the auth_strategy = keystone in the service:api section. This will make it easier to use clients like the openstack CLI that expect Keystone.

Development Environment on Ubuntu

Development Environment on Ubuntu¶

Development Environment¶

Installing Designate¶

Configuring Designate¶

Installing RabbitMQ¶

Installing MySQL¶

Installing BIND9¶

Create and Import pools.yaml File¶

Initialize the Database¶

Start the Central Service¶

Initialize Pools Information¶

Start the other Services¶

Exercising the API¶

designate 19.1.0.dev37

Page Contents