Deploying NATS

NATS isn’t complicated to deploy. This guide will show you how to deploy NATS locally.

Installing NATS

Download the NATS server from the NATS download page.

Running NATS

Run the NATS server with the following command:

nats-server

Configuring NATS

NATS can be configured using a configuration file. To run NATS with a configuration file, use the following command:

nats-server -c <path-to-config-file>

Adding users

Info

This guide will focus on getting you started. We’ll look deeper into NATS permissions in the NATS configuration guide.

In your NATS configuration file, add the following section:

authorization {
  default_permissions = {
    publish = []
    subscribe = ["__telestion__.>"]
  }
  SERVICE = {
    publish = ["altitude", "log.>"]
    subscribe = ["altitude", "__telestion__.health"]
    allow_responses = true
  }
  users = [
    {user: service,  password: service, permissions: $SERVICE}
  ]
}

This will create a user called service with the password service. This user will be able to publish to the altitude subject and subscribe to the __telestion__.health subject.