If you’re looking to establish a Configuration Management Database (CMDB) on your Linux system using Django and integration with Web SSH shell, you’ve come to the right place! This guide walks you through the setup process step by step.

Prerequisites

Before you begin, ensure you have the following installed:

• CentOS 7.5
• Python 3.6.5
• Django 2.0.5
• Redis
• SQLite3 or MySQL

Step 1: Clone the Repository

First, you’ll need to clone the CMDB repository. Open your terminal and run:

bash
git clone https://github.com/hequan2017/chain.git
cd chain

Step 2: Configuration

Edit your settings.py file to set the correct IP and ports:

bash
web_ssh = '47.104.140.38'    # Example IP Address
web_port = 8002              # Example Port

Step 3: Install Dependencies

Install required packages and libraries:

bash
mkdir etc
yum install -y sshpass bzip2 redis wget
systemctl start redis
cd tmp
wget https://files.pythonhosted.org/packages/12/2a/e9e4fb2e6b2f7a75577e0614926819a472934b0b85f205ba5d5d2add54d0/Twisted-18.4.0.tar.bz2
tar xf Twisted-18.4.0.tar.bz2
cd Twisted-18.4.0
python3 setup.py install
pip3 install -r requirements.txt

Step 4: Database Migrations

Once dependencies are installed, it’s time to set up your database:

bash
cd chain
python3 manage.py makemigrations
python3 manage.py migrate

Step 5: Create Superuser

Now, create a superuser account that will allow you to access the admin panel:

bash
python manage.py shell
from name.models import Names
user = Names.objects.create_superuser('admin', 'hequan@test.com', '1qaz.2wsx')
exit()

Step 6: Running the Server

Finally, run the server with the command:

bash
python3 manage.py runserver 0.0.0.0:80
nohup python3 manage.py runserver 0.0.0.0:8003 > tmp/chain-http.log 2>&1 &

Step 7: Using Celery

If your application requires background task processing, start Celery with:

bash
celery -B -A chain worker -l info

Troubleshooting

You might encounter issues such as dependency problems or ImportErrors. For example, if you see an error like ImportError: No module named _sqlite3, simply install the SQLite development package:

bash
yum -y install sqlite-devel

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Conclusion

Setting up a CMDB can seem daunting, but by following these steps, you’ll have a powerful tool at your disposal. As you work with your new setup, remember that every configuration is a step toward a more organized and efficient infrastructure management.

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Understanding the Code with an Analogy

Think of this setup process as baking a cake. Each step is like an ingredient you need to gather:

• Cloning the repository: This is akin to gathering your recipe and ingredients from the pantry.
• Configuration: Just like setting the oven temperature and prepping your pans.
• Installing dependencies: This is like mixing your ingredients in a bowl.
• Database migrations: Setting the cake in the oven to rise!
• Creating Superuser: This is giving yourself access to taste-test the batter before it’s baked.
• Running the server: This is the moment you pull the cake out of the oven to cool and serve.

Just as in baking, if something goes wrong—like if your cake doesn’t rise—you need to troubleshoot and see where the step could have gone astray!

Final Thoughts

With this guide, you’re well on your way to mastering CMDB with Web SSH shell integration! Enjoy your newfound capabilities!