#/bin/bash

# Passed validation in Cloud Shell on 4/25/2022

# <FullScript>

# Scale an App Service app worldwide with a high-availability architecture

#

# This sample script creates a resource group, two App Service plans,

# two apps, a traffic manager profile, and two traffic manager endpoints.

# Once the exercise is complete, you have a high-available architecture,

# which provides global availability of your app based on the lowest network latency.

#

# set -e # exit if error

# Variable block

let "randomIdentifier=$RANDOM*$RANDOM"

location="East US"

resourceGroup="msdocs-app-service-rg-$randomIdentifier"

tag="scale-geographic.sh"

appServicePlan="msdocs-app-service-plan-$randomIdentifier"

trafficManagerDns="msdocs-dns-$randomIdentifier"

app1Name="msdocs-appServiceTM1-$randomIdentifier"

app2Name="msdocs-appServiceTM2-$randomIdentifier"

location1="West US"

location2="East US"

# Create a resource group.

echo "Creating $resourceGroup in "$location"..."

az group create --name $resourceGroup --location "$location" --tag $tag

# Create a Traffic Manager Profile

echo "Creating $trafficManagerDNS"

az network traffic-manager profile create --name $trafficManagerDns-tmp --resource-group $resourceGroup --routing-method Performance --unique-dns-name $trafficManagerDns

# Create App Service Plans in two Regions

az appservice plan create --name $app1Name-Plan --resource-group $resourceGroup --location "$location1" --sku S1

az appservice plan create --name $app2Name-Plan --resource-group $resourceGroup --location "$location2" --sku S1

# Add a Web App to each App Service Plan

site1=$(az webapp create --name $app1Name --plan $app1Name-Plan --resource-group $resourceGroup --query id --output tsv)

site2=$(az webapp create --name $app2Name --plan $app2Name-Plan --resource-group $resourceGroup --query id --output tsv)

# Assign each Web App as an Endpoint for high-availabilty

az network traffic-manager endpoint create -n $app1Name-"$location1" --profile-name $trafficManagerDns-tmp -g $resourceGroup --type azureEndpoints --target-resource-id $site1

az network traffic-manager endpoint create -n $app2Name-"$location2" --profile-name $trafficManagerDns-tmp -g $resourceGroup --type azureEndpoints --target-resource-id $site2

# </FullScript>

# echo "Deleting all resources"

# az group delete --name $resourceGroup -y