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Installing Authelia on nixOS Latest

Authelia is a powerful and flexible authentication server that provides secure authentication for your web applications. In this tutorial, we will show you how to install and configure Authelia on nixOS latest.

Prerequisites

Before we proceed, let's ensure that you have the following prerequisites:

• A computer running nixOS latest
• A non-root user account with sudo privileges
• A basic understanding of command line

Step 1: Install and Configure Authelia

1. First, let's install the Authelia binary package from the nixpkgs repository using the following command:

   $ sudo nix-env -i authelia
   

2. After installation, create the configuration file for Authelia by running the following command:

   $ sudo mkdir -p /etc/authelia
   $ sudo nano /etc/authelia/configuration.yml
   

   Paste the following configuration into the file:

   listen_address: 0.0.0.0:9091
   
   log_level: info
   
   jwt_secret: my-jwt-secret
   
   ldap:
     url: ldaps://example.com:636
     user_dn: cn=admin,dc=example,dc=com
     user_password: my-secret-bind-password
     base_dn: 'ou=users,dc=example,dc=com'
     filter: (uid={0})
   
   session:
     domain: example.com
     name: AUTH_SESSION_ID
     expiration: 3600s
   
   storage:
     mysql:
       host: localhost:3306
       username: my-mysql-user
       password: my-mysql-password
       database: authelia
   
   notifiers:
     smtp:
       enabled: true
       host: smtp.example.com:587
       from: noreply@example.com
       username: smtp-user
       password: smtp-password
   

   Note: In this example, we are using LDAP for user authentication, MySQL for storing user data, and SMTP for sending email notifications. You may replace these with your preferred options.

3. Next, let's create a service for Authelia by running the following command:

   $ sudo nano /etc/nixos/configuration.nix
   

   Add the following code to the end of the configuration file:

   services.authelia = {
     enable = true;
     configFile = "/etc/authelia/configuration.yml";
     package.enable = true;
   };
   

4. Save and close the configuration file.

5. Apply the changes by running the following command:

   $ sudo nixos-rebuild switch
   

   This will rebuild and activate the nixOS system with the new Authelia service.

Step 2: Test Authelia

1. You can test that Authelia is running correctly by opening a web browser and navigating to:

   https://auth.example.com:9091
   

   Replace auth.example.com with your domain name.

2. You should see the Authelia login screen. Enter your LDAP username and password to log in.

3. Once logged in, you can configure Authelia to work with your web applications.

Congratulations! You have successfully installed Authelia on nixOS Latest.

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