Tutorial: How to Install NATS on Clear Linux Latest

In this tutorial, we will walk you through the steps to install NATS (a high-performance distributed messaging system) on Clear Linux Latest.

Prerequisites

Before starting with the installation, you need to make sure that:

  1. You have access to a Clear Linux Latest machine with root privileges.
  2. You have an active internet connection.

Step 1: Update the System Packages

Before we begin with the installation of NATS, it is best practice to update the system packages to their latest version using the following command:

sudo swupd update

Step 2: Install NATS

You can install NATS on Clear Linux using the following command:

sudo swupd bundle-add network-basic
sudo curl -sSL https://raw.githubusercontent.com/nats-io/nats-install/main/nats-server/install.sh | sudo bash

This command installs the network-basic bundle, which includes the necessary packages for NATS to work, then it downloads and runs the NATS install script.

Step 3: Start and Verify NATS

To start the NATS server, run the nats-server command:

sudo nats-server

If the NATS server is running correctly, you should see a log message similar to the following:

[44744] 2021/11/05 18:36:51.333786 [INF] Starting nats-server version 2.6.0
[44744] 2021/11/05 18:36:51.333861 [INF] Git commit [924ee346]
[44744] 2021/11/05 18:36:51.333890 [INF] Starting http monitor on *:8222
[44744] 2021/11/05 18:36:51.333899 [INF] Listening for client connections on 0.0.0.0:4222
[44744] 2021/11/05 18:36:51.333903 [INF] Server is ready

To verify that NATS is working, you can run the NATS client tool nats-pub to publish a message to the default NATS subject:

nats-pub foo "Hello, NATS!"

If NATS is correctly installed, you should see the log message "Received on foo: 'Hello, NATS!'" outputted by the nats-sub command:

nats-sub foo

Conclusion

Congratulations! You have successfully installed and verified NATS on Clear Linux Latest. You can now use NATS for your distributed messaging needs.