go-avahi-register

A tool for registering services against avahi/bonjour.

Requirements

• A Linux distribution: This project may work on other systems, but has only been tested on Linux.
• The avahi-daemon package: This may be installed on Debian-based systems via apt-get

Installation

Install it using the "go get" command:

go get github.com/josegonzalez/go-avahi-register

Configuration

go-avahi-register supports a single configuration file can be specified via the --config flag. By default, this value is set to /etc/avahi-register/config.$FORMAT, where $FORMAT is one of the following (detected in order):

• json
• yml
• yaml

Create a config.yml file. This file will contain all services that will be registered to the current IP address. An example is as follows:

---
services:
- name: nodejs-express
  port: 80
  scheme: http
- name: personal-apt-repository
  port: 80
  scheme: apt
- name: awesome-ntp-server
  port: 123
  scheme: ntp
  protocol: udp

Service Schema

The schema for a service is as follows:

• name: required
  • type: string
  • description: The name of the service to register.
• port: optional
  • type: int
  • default: 80
  • description: The port on which the service is listening.
• scheme: optional
  • type: string
  • default: http
  • description: A scheme that will be used to register an avahi service-type.
• protocol: optional
  • type: string
  • default: tcp
  • description: A protocol that will be used to register an avahi service-type. If the scheme is http or http, the protocol must be tcp.

Usage

Running avahi-register

Using the above config file, avahi-register may be triggered as follows:

avahi-register run

By default, avahi-register will register against the first network interface with an IPv4 IP Address that is not a loopback device. In the case where this may be ambiguous or result in the wrong IP Address being selected, the value may be overriden with the -ip-address flag:

avahi-register run --ip-address 192.168.1.2

The avahi-register process responds to signals, and will reload the config file on SIGHUP or when the file is changed. Note that an invalid config file will result in a hard crash of avahi-register.

Adding a new entry

The add command can be used to add a new entry:

avahi-register add --name irc

See the avahi-register add --help output for more information.

Cat the config

The cat command can be used to display the config file:

avahi-register cat

See the avahi-register cat --help output for more information.

Initialize a config

The init command can be used to initialize a config file:

avahi-register init

See the avahi-register init --help output for more information.

Removing an entry

The remove command can be used to remove an entry:

avahi-register remove --name irc

See the avahi-register remove --help output for more information.

Showing the config

The show-config command can be used to display a human readable version of the config:

avahi-register show-config

See the avahi-register show-config --help output for more information.