NATS.io module for AIO Puppet 4

This is a basic module to configure NATS.io for use with Puppet 4, it's intended as a companion module to the ripienaar/mcollective module.

Overview

This module will install the NATS binary on your machine via source from inside the module file directory, create a config dir, config file and configure the NATS daemon for standalone or clustered use.

It only supports verified TLS connections and defaults to using the Puppet certificates and CA.

Usage

It's recommended that you define a cluster of servers equal to 3 nodes, but it can run standalone too.

Logging is to syslog and various paths can be configured via the class properties.

By default clients will use port 4222, monitoring will be on port 8222 and cluster comms will use port 4223.

Cluster of 3 Servers

Given 3 servers with cluster ports 4223 and password S3cret you configure the the class with the FQDNs of your 3 servers and a password

class{"nats":
  servers => ["nats1.example.net", "nats2.example.net", "nats3.example.net"],
  routes_password => "S3cret"
}

Standalone Server

If you do not specify servers, it becomes a standalone node:

include nats

Collectd Stats

If you use the puppet/collectd module to manage collectd this module can configure a metrics poller for your NATS instances

class{"nats":
  servers => ["nats1.example.net", "nats2.example.net", "nats3.example.net"],
  routes_password => "S3cret",
  manage_collectd => true
}

Compatibility

It only supports Systemd based Debian and RedHat systems via the camptocamp/systemd module.