How to Install Ralph on Fedora Server Latest

Ralph is an open-source asset management tool that helps to simplify hardware inventory and maintenance management. This tutorial explains how to install Ralph on Fedora Server Latest.

Prerequisites

Before proceeding with the installation of Ralph on Fedora Server Latest, ensure that you have:

• Access to a terminal as the root or user with sudo privileges.
• A fully updated Fedora Server Latest instance with internet connectivity.

Step 1: Install Required Dependencies

Before you can install Ralph, you need to install the following dependencies:

sudo dnf install git gcc python3-devel postgresql-server postgresql-contrib postgresql-devel libxml2-devel libxslt-devel openldap-devel redis redis-devel

Step 2: Install Ralph

Follow the below steps to install Ralph:

1. Create a directory for Ralph using the command:

sudo mkdir /opt/ralph

2. Move to the newly created directory using:

cd /opt/ralph

3. Clone the Ralph code repository using the command:

sudo git clone https://github.com/allegro/ralph.git .

4. Create a virtual environment using:

sudo python3 -m venv ralph

5. Activate the virtual environment with:

source ralph/bin/activate

6. Install the Ralph package using the command:

pip install -r requirements.txt

7. Generate a SECRET_KEY for Ralph using:

python manage.py generate_secret_key

This command will generate a secret key that you can use in Ralph's configuration files.

Step 3: Configure PostgreSQL Database

Follow the below steps to configure the PostgreSQL database for Ralph:

1. Initialize the PostgreSQL database using:

sudo postgresql-setup initdb

2. Start the PostgreSQL server using:

sudo systemctl start postgresql

3. Create a new database and user for Ralph using:

sudo -u postgres psql

CREATE DATABASE ralph;

CREATE USER ralph WITH PASSWORD 'password';

GRANT ALL PRIVILEGES ON DATABASE ralph TO ralph;

ALTER USER ralph CREATEDB;

ALTER USER ralph WITH SUPERUSER;

ALTER USER ralph WITH LOGIN;

ALTER USER ralph WITH PASSWORD 'password';

ALTER DATABASE ralph OWNER TO ralph;

ALTER DATABASE ralph SET DATESTYLE TO 'ISO,MDY';

ALTER DATABASE ralph SET timezone TO 'UTC';

ALTER ROLE ralph SET client_encoding TO 'utf8';

These commands will create a new database named ralph and a user named ralph with a password of password.

Step 4: Configure Ralph

1. Copy the sample configuration file using the command:

cp etc/ralph/default_settings.yaml etc/ralph/settings.yaml

2. Edit the Ralph configuration file using your preferred text editor:

sudo nano etc/ralph/settings.yaml

3. Update the following sections of the configuration file with the values relevant to your deployment:

DATABASES:
default:
    ATOMIC_REQUESTS: true
    ENGINE: django.contrib.gis.db.backends.postgis
    NAME: ralph
    PASSWORD: password
    PORT: ""
    USER: ralph
    HOST: localhost

SECRET_KEY: <<SECRET_KEY>>

4. Save your changes to the configuration file.

Step 5: Run Initial Setup

Follow the steps below to run the initial Ralph setup:

1. Activate the virtual environment again:

source /opt/ralph/ralph/bin/activate

2. Make database migrations using:

python manage.py makemigrations

python manage.py migrate

3. Create a superuser for Ralph using:

python manage.py createsuperuser

4. Collect the static files using:

python manage.py collectstatic

5. Run Ralph with the command:

python manage.py runserver 0.0.0.0:8000

Ralph should now be accessible via http://<IP_Address>:8000/ on a web browser.

Conclusion

In this tutorial, you have successfully installed Ralph on Fedora Server Latest. You can now start managing your hardware inventory and maintaining your servers using Ralph.

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