How to Install Designate on Alpine Linux Latest

Designate is a DNS as a Service project from OpenStack, which provides a scalable DNS solution for public and private clouds. In this tutorial, we will focus on the installation of Designate on Alpine Linux Latest.

Prerequisites

Before you start with the installation of Designate, make sure you have the following prerequisites on your system:

• Alpine Linux Latest installed on your system.
• SSH access to your server with sudo privileges.

Step 1: Update System

The first step is to update the system by running the following commands:

sudo apk update
sudo apk upgrade

Step 2: Install Packages

Next, we need to install the required packages for Designate. Run the following command to install them:

sudo apk add python3 python3-dev py3-pip git \
libffi-dev openssl-dev build-base libxml2-dev \
libxslt-dev linux-headers

Step 3: Install MySQL

Designate requires a MySQL database to store its data. To install MySQL, run the following command:

sudo apk add mysql mysql-client

After the installation, start the MySQL service by running the command:

sudo service mysql start

Step 4: Clone Designate Repository

Next, we need to clone the Designate repository from GitHub. Run the following command:

git clone https://github.com/openstack/designate.git

Step 5: Install Designate

After cloning the repository, we need to install Designate by running the following command:

cd designate
pip3 install -r requirements.txt
pip3 install .

Step 6: Configure Designate

To configure Designate, we need to create a configuration file named designate.conf. Run the following command to create the file:

sudo cp etc/designate/designate.conf.sample /etc/designate/designate.conf

Next, edit the configuration file and update the MySQL connection details. Run the following command to edit the configuration file:

sudo vi /etc/designate/designate.conf

In the [database] section, update the following details:

connection=mysql+pymysql://<db-user>:<db-pass>@<db-host>/<db-name>

Note: Replace <db-user>, <db-pass>, <db-host>, and <db-name> with your MySQL database details.

Step 7: Configure RabbitMQ

Designate uses RabbitMQ as a message broker. To configure RabbitMQ, we need to create a configuration file named rabbitmq.json. Run the following command to create the file:

sudo cp etc/designate/rabbitmq.json.sample /etc/designate/rabbitmq.json

Next, edit the rabbitmq.json file and update the RabbitMQ connection details. Run the following command to edit the file:

sudo vi /etc/designate/rabbitmq.json

Update the following details:

{
    "rabbit_userid": "<rabbitmq-user>",
    "rabbit_password": "<rabbitmq-pass>",
    "rabbit_virtual_host": "<rabbitmq-vhost>",
    "rabbit_hosts": "<rabbitmq-host>",
    "rabbit_port": "<rabbitmq-port>"
}

Note: Replace <rabbitmq-user>, <rabbitmq-pass>, <rabbitmq-vhost>, <rabbitmq-host>, and <rabbitmq-port> with your RabbitMQ details.

Step 8: Initialize Database

After configuring Designate, we need to initialize the database by running the following command:

sudo designate-manage database init

Step 9: Start Designate Services

To start Designate services, run the following command:

sudo designate-api &
sudo designate-central &
sudo designate-mdns &
sudo designate-pool-manager &
sudo designate-sink &

Step 10: Verify Installation

To verify the installation of Designate, we can check the Designate logs by running the following command:

sudo tail -f /var/log/designate/designate-{service}.log

Note: Replace {service} with the service name you want to check.

Conclusion

By following the above steps, you have successfully installed Designate on Alpine Linux Latest. Now, you can use Designate as a scalable DNS solution for your public and private clouds.