ARM templates expect a public URL to download your templates. This allows you to use your private GitHub repo for Azure Linked ARM templates. The Azure Function is basically a proxy to GitHub. You can edit the Azure Function for your source control provider of choice.

1. Create an Azure Function of type .NET named {Organization}GitHubProxy (the function name needs to be globally unique)
2. Paste the Azure-Function.cs into a new function
3. Login into GitHub
   • Click on your name (top right)
   • Select Settings
   • Go to Developer Settings
   • Go to Personal Access Token
   • Click Generate New Token
   • Give it name
   • Select repo scope access
4. Paste your Personal Access Token into the Azure Function
   • string personalAcccessToken = "{REMOVED}";

• Press the "Get function URL" in the Azure Portal
• e.g. https://{functionAppName}.azurewebsites.net/api/{functionName}
• Add the query string &location={raw url in GitHub}
• Sample: https://{functionAppName}.azurewebsites.net/api/{functionName}?location=https://raw.githubusercontent.com/AdamPaternostro/GitHub-Azure-Function-Proxy-for-ARM-Template/master/README.md
• You can test this in a browser window

• You need to change the URL in the azuredeploy.json

# Login
az login

# Select Subscription
az account set -s REPLACE_ME

# Script parameters
resourceGroup="Azure-Function-Proxy"
location="eastus"
today=`date +%Y-%m-%d-%H-%M-%S`
deploymentName="MyDeployment-$today"

# Create resource group
az group create \
  --name        $resourceGroup \
  --location    $location

# Deploy the ARM template
az group deployment create \
  --name                 $deploymentName \
  --resource-group       $resourceGroup \
  --template-file        azuredeploy.json

# Clean up resource group
az group delete --name $resourceGroup