Ansible helps you automate server provisioning and configuration management with code. Instead of repeating manual setup steps, you run the same playbook on every server. As a result, you get consistent configurations, even across many VPS instances.
In this guide, you will see how to install Ansible, create a simple playbook, and run it against a server inventory.
What Is Server Provisioning
Server provisioning means preparing a server for actual operation. To do this, you set up the operating system, create users, and configure access. You then install services, apply security rules, and adjust system settings. Repeating these steps manually wastes time and can lead to errors.
With automation you get a safer and faster way to provision servers.
Why Use Ansible
Ansible makes automation easy because it uses readable YAML playbooks. In addition, the connection is established via SSH, so your servers remain free of disruptive factors. You define the desired state once and then apply it everywhere. This workflow reduces configuration drift because you can re-run playbooks at any time.
How to Install Ansible on Linux
Start by installing Ansible on your control machine. On most Debian or Ubuntu systems, you can use this command:
sudo apt update && sudo apt install ansible After installation, you can begin writing playbooks that describe your server setup.
Create a Playbook to Install and Start NGINX
A playbook contains tasks that Ansible executes in order. For example, you can install NGINX and start the service in one run. Use a playbook like this:
- hosts: web
become: yes
tasks:
- name: Install NGINX
apt:
name: nginx
state: present
- name: Start NGINX
service:
name: nginx
state: startedThis playbook targets the web host group and runs tasks with admin rights.
Add Your Servers to an Inventory
Next, you list your servers in an inventory file. This file tells Ansible where to connect. You can group hosts, which makes scaling easier later. Once your inventory exists, you can provision a single server or many servers the same way.
Run the Playbook and Provision Automatically
Now you can apply your configuration with one command:
ansible-playbook -i inventory playbook.yml Ansible connects to each host, installs NGINX, and starts the service. From there, you can expand the playbook to add users, configure firewalls, and deploy applications.
Where Ansible Fits in Real Projects
Teams often use Ansible to provision VPS servers for web hosting and app deployments. You can also build staging environments that mirror production settings and automate database setup and load balancer configuration. Over time, this approach makes your infrastructure easier to maintain and easier to grow.
Watch Our YouTube Video on Server Provisioning with Ansible
If you prefer a visual walkßthrough, watch the connected Contabo YouTube video that this guide is based on.
Final Thoughts
Ansible automation turns server provisioning into a repeatable process. You define everything once, and then you deploy it with the same results each time. This makes configuration management simpler, especially as your project expands.