MultiCloud Classroom notes 05/Feb/2025

Azure VMSS

• Azure VMSS enables automatic scaling of vm’s
• To us Azure VMSS, lets create VM Images

Azure VM Image

• Azure VM Images are of two types
  • Generalized:
    • Doesn’t container user specific information i.e. while creating the vm we need to set username & password/key
  • Specialized:
    • Contain user specific information (like AMI)
• Azure Identifies images with urn (uniform resource name) which is combination of
  • publisher
  • offer
  • sku
  • version
• azure vm image urn is consistent across regions unlike ami id.
• To create a vm image we create a vm, install necessary configurations, Capture image
• While capturing the generalized image, azure
  • removes user specific information from vm
  • Captures the snapshot to create vm image
  • This makes the vm unusable after vm image creation.

Azure Compute Gallery

• This service is used to store and manage custom images
• Gallery enables us to create image definitions which represent an application/custom image
• In Each image definition we can store multiple versions of the image
• We will create an image definition for foundry and carpenter and store one version of the image respectively

Foundry VM Image

Foundry

• Lets create an azure vm with ubuntu 24.04 and execute the following

#!/bin/bash
sudo apt update 
sudo apt install nginx unzip stress -y
cd /tmp
wget https://www.free-css.com/assets/files/free-css-templates/download/page294/troweld.zip
unzip troweld.zip
mv troweld-html/ foundry/
sudo mv foundry/ /var/www/html/

Carpenter

• Now lets create an Azure VM imge by following the steps as done in previous case (refer classroom recording if necessary)

#!/bin/bash
sudo apt update 
sudo apt install nginx unzip stress -y
cd /tmp
wget https://www.free-css.com/assets/files/free-css-templates/download/page294/woody.zip
unzip woody.zip
mv carpenter-website-template/ carpenter/
sudo mv carpenter/ /var/www/html/

• Watch video for the steps