Azure VMSS: Deploy & Connect via SSH.

Azure Virtual Machine Scale Sets (VMSS) help you deploy and manage identical VMs that auto-scale based on demand. In this guide, we’ll: ✅ Create a VM Scale Set in Azure ✅ Connect via SSH ✅ Install and Test Nginx (a lightweight web server) Perfect for beginners! Let’s get started. Step 1: Create a VM Scale Set in Azure 1. Log in to Azure Portal : Go to portal.azure.com and sign in. 2. Create a VM Scale Set Click "Create a resource" > Search for "Virtual Machine Scale Set" > Create. Fill in the details: Resource Group: Create new (e.g., my-vmss-rg). Name: Add a name.(e.g,my-vmss) Region:Select a Region that is close to your area (East US). Image: Ubuntu Server 22.04 LTS Size: Standard_B1s (cheap for testing) Orchestration mode: Select Uniform. Security type: Select Standard. Scaling mode: Choose the Autoscaling option. 3. Configure Scaling. Instance count: Start with 2 VMs. Scaling policy: Manual (or set auto-scaling rules later). 4. Add SSH Authentication Authentication type: SSH public key. Username: azureuser SSH public key: Paste your key (or generate one). Enter the Key pair name. 5. Network Configuration Set the load balancer,choose a type. Create a Network Interface. Allow inbound SSH (port 22) and HTTP (port 80). 6. Review & Deploy Click Review + Create > Create. Select the Download private key and create Resource. After the deployment is completed, click on the Go to resource. Step 2: Connect via SSH & Install Nginx 1. Find the Public IP Go to your VMSS > Networking > Check the Load Balancer’s Public IP. 2. SSH into a VM Instance Open Terminal (Linux/macOS) or PowerShell (Windows) and run: ssh -i ~/.ssh/your_private_key azureuser@ (Replace your_private_key and with your details.) 3. Install Nginx Once logged in, run: sudo apt update && sudo apt install nginx -y 4. Verify Nginx is Running sudo systemctl status nginx (You should see active (running).) 5. Test in Browser Open a browser and enter the Public IP of your VMSS. You should see the Nginx welcome page!

Apr 28, 2025 - 21:29

Azure Virtual Machine Scale Sets (VMSS) help you deploy and manage identical VMs that auto-scale based on demand. In this guide, we’ll:

✅ Create a VM Scale Set in Azure

✅ Connect via SSH

✅ Install and Test Nginx (a lightweight web server)

Perfect for beginners! Let’s get started.

Step 1: Create a VM Scale Set in Azure

1. Log in to Azure Portal : Go to portal.azure.com and sign in.

2. Create a VM Scale Set

Click "Create a resource" > Search for "Virtual Machine Scale Set" > Create.

Fill in the details:
- Resource Group: Create new (e.g., my-vmss-rg).
- Name: Add a name.(e.g,my-vmss)
- Region:Select a Region that is close to your area (East US).

Image: Ubuntu Server 22.04 LTS
Size: Standard_B1s (cheap for testing)

Orchestration mode: Select Uniform.
Security type: Select Standard.
Scaling mode: Choose the Autoscaling option.

3. Configure Scaling.

Instance count: Start with 2 VMs.

Scaling policy: Manual (or set auto-scaling rules later).

4. Add SSH Authentication

Authentication type: SSH public key.
Username: azureuser
SSH public key: Paste your key (or generate one).
Enter the Key pair name.

5. Network Configuration

Set the load balancer,choose a type.

Create a Network Interface.

Allow inbound SSH (port 22) and HTTP (port 80).

6. Review & Deploy

Click Review + Create > Create.

Select the Download private key and create Resource.

After the deployment is completed, click on the Go to resource.

Step 2: Connect via SSH & Install Nginx

1. Find the Public IP

Go to your VMSS > Networking > Check the Load Balancer’s Public IP.

2. SSH into a VM Instance

Open Terminal (Linux/macOS) or PowerShell (Windows) and run:

ssh -i ~/.ssh/your_private_key azureuser@

(Replace your_private_key and with your details.)

3. Install Nginx

Once logged in, run:

sudo apt update && sudo apt install nginx -y

4. Verify Nginx is Running

sudo systemctl status nginx

(You should see active (running).)

5. Test in Browser

Open a browser and enter the Public IP of your VMSS.
You should see the Nginx welcome page!