Day 22: Configuring Instances with User Data

☁️ Day 22: Configuring Instances with User Data | 100 Days of Cloud (Azure)

Welcome to Day 22 of the 100 Days of Cloud (Azure) series! In this lab, you’ll learn how to deploy an Azure Virtual Machine and automatically configure it as a web server using Nginx with user data.

📌 Lab Objective:
Create an Azure VM and use a startup script to install and run Nginx, while allowing HTTP access from the internet.

🛠️ Task Requirements:

VM Name: xfusion-vm
Image: Ubuntu
Use user data (bash script) to:
Install Nginx
Start Nginx service
Allow HTTP (port 80) access

💻 Step-by-Step Solution (Azure CLI):

🔹 1. Login to Azure

az login

🔹 2. Get Resource Group

az group list --query "[].name" --output table

🔹 3. Create User Data Script

vi script.sh

Paste:

#!/bin/bash
apt-get update -y
apt-get install -y nginx
systemctl enable nginx
systemctl start nginx

🔹 4. Create VM with Script

az vm create \
--name xfusion-vm \
--resource-group YOUR_RESOURCE_GROUP \
--image Ubuntu2204 \
--size Standard_B1s \
--admin-username azureuser \
--generate-ssh-keys \
--custom-data script.sh

🔹 5. Open HTTP Port

az vm open-port \
--resource-group YOUR_RESOURCE_GROUP \
--name xfusion-vm \
--port 80

🔹 6. Get Public IP

az vm show \
--name xfusion-vm \
--resource-group YOUR_RESOURCE_GROUP \
--show-details \
--query publicIps \
--output tsv

🔍 Verify:

Open in browser:

http://PUBLIC-IP

✅ Nginx welcome page should appear

📚 What You’ll Learn:

Using user data (bash script) in Azure
Automating server setup
Deploying Nginx on cloud VM
Configuring NSG firewall rules
Azure CLI usage

🌟 Why This Lab Matters:
Automating VM configuration is a core DevOps skill, helping you deploy infrastructure faster, consistently, and at scale.

🎯 Series: 100 Days of Cloud (Azure)
Keep building real-world cloud skills step by step.

🔔 Follow OtterTech for more hands-on labs and practical tutorials!

#Azure #VirtualMachine #Nginx #CloudComputing #DevOps #Automation #NSG #Linux #100DaysOfCloud #OtterTech #Day22

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