azure-create-scaleset.sh

#!/bin/bash
az configure --defaults location=westus
az configure --defaults group="scalesetrg"

az vmss create \
  --name webServerScaleSet \
  --lb-sku Standard \
  --image UbuntuLTS \
  --upgrade-policy-mode automatic \
  --custom-data cloud-init.yaml \
  --admin-username azureuser \
  --generate-ssh-keys
  

cloud-init.yaml

#cloud-config
package_upgrade: true
packages:
  - nginx
write_files:
  - owner: www-data:www-data
  - path: /var/www/html/index.html
    content: |
        Hello world from Virtual Machine Scale Set !
runcmd:
  - service nginx restart