Rerunning ARM template cause error - azure

Question

I have a very simple ARM template which spins up an app service plan and a website. When I delete plan or resource group it works fine and creates new plan and website. Following is the template:
{
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"environment": {
"type": "string",
"metadata": {
"comments": "The environment to suffix to distinguish resources in different groups"
}
"allowedValues": ["Test","Uat","Stage"]
},
"planName": {
"type": "string"
},
/*Other Parameters*/
}
},
"variables": {
"planNameFull": /*expression*/,
"siteTestNameFull": /*expression*/,
"appDomainName": /*expression*/
},
"resources": [
{
"comments": "Application Plan (Serverfarm)",
"type": "Microsoft.Web/serverfarms",
"sku": {
"name": "S1",
"tier": "Standard",
"Size": "S1",
"family": "S",
"capacity": "1"
},
"kind": "app",
"name": "[variables('planNameFull')]",
"apiVersion": "2016-09-01",
"location": "[resourceGroup().location]",
"tags": {
"[concat('hidden-related:', resourceGroup().id, '/providers/Microsoft.Web/serverfarms/', variables('planNameFull'))]": "empty",
"displayName": "[variables('planNameFull')]"
},
"properties": {
"name": "[variables('planNameFull')]",
"workerTierName": null,
"adminSiteName": null,
"hostingEnvironmentProfile": null,
"perSiteScaling": false,
"reserved": false,
"targetWorkerCount": 0,
"targetWorkerSizeId": 0
}
},
{
"comments": "Test Web Site",
"type": "Microsoft.Web/sites",
"kind": "app",
"name": "[variables('siteTestNameFull')]",
"apiVersion": "2016-08-01",
"location": "[resourceGroup().location]",
"tags": {
"[concat('hidden-related:', resourceGroup().id, '/providers/Microsoft.Web/serverfarms/', variables('planNameFull'))]": "empty",
"displayName": "[variables('siteTestNameFull')]"
},
"properties": {
"clientAffinityEnabled": true,
"enabled": true,
"hostNameSslStates": [
{
"name:": "[concat(variables('siteTestNameFull') ,'.azurewebsites.net')]",
"sslState": "Disabled",
"hostType": "Standard"
},
{
"name:": "[concat(variables('siteTestNameFull') ,'scm.azurewebsites.net')]",
"sslState": "Disabled",
"hostType": "Repository"
}
],
"serverFarmId": "[resourceId('Microsoft.Web/serverfarms',variables('planNameFull'))]"
},
"dependsOn": [ "[resourceId('Microsoft.Web/serverfarms',variables('planNameFull'))]" ],
"resources": [
{
"comments": "Test Web Site Config.",
"type": "Microsoft.Web/sites/config",
"name": "[concat(variables('siteTestNameFull'),'/web')]",
"apiVersion": "2015-08-01",
"tags": {
"[concat('hidden-related:', resourceGroup().id, '/providers/Microsoft.Web/serverfarms/', variables('planNameFull'))]": "empty",
"description": "[concat('Moula ', variables('siteTestNameFull'),' Settings')]",
"displayName": "[concat(variables('siteTestNameFull'),' App Settings')]"
},
"properties": {
"numberOfWorkers": 1,
"defaultDocuments": [ "index.html" ],
"netFrameworkVersion": "v4.7",
"publishingUsername": "[parameters('webPublishingUser')]",
"publishingPassword": "[parameters('webPublishingPwd')]",
"siteAuthSettings": { "isAadAutoProvisioned": false },
"ipSecurityRestrictions": [
{
"ipAddress": "115.xx.xxx.27",
"subnetMask": null
},
{
"ipAddress": "34.xxx.xx.90",
"subnetMask": null
}
],
"appSettings": {
"WEBSITE_TIME_ZONE": "[parameters('websiteTimezone')]",
"WEBSITE_LOAD_CERTIFICATES": "[parameters('testCertificate')]"
},
"use32BitWorkerProcess": false,
"managedPipelineMode": "Integrated",
"virtualApplications": [
{
"virtualPath": "/",
"physicalPath": "site\\wwwroot",
"preloadEnabled": false,
"vitualDirectories": null
}
],
"loadBalancingRules": [ "LeastRequests" ]
},
"dependsOn": [ "[resourceId('Microsoft.Web/sites',variables('siteTestNameFull'))]" ]
}
]
}
],
"outputs": {
"planId": {
"type": "string",
"value": "[resourceId('Microsoft.Web/serverfarms', variables('planNameFull'))]"
},
"TestAppId": {
"type": "string",
"value": "[resourceId('Microsoft.Web/sites',variables('siteTestNameFull'))]"
}
}
}
My problem is that I want to run this template as VSTS build pipeline step. When I try to run template again without making any changes, it causes following error always:
Template deployment returned the following errors:
1:09:17 PM - Resource Microsoft.Web/sites 'TestWebsite' failed with message '{
"error": {
"code": "InternalServerError",
"message": "There was an unexpected InternalServerError. Please try again later. x-ms-correlation-request-id: 8cd06d54-vvvv-wwww-xxxx-5e55029fc640"
}
}'
What I'm doing wrong?

Answer 1

There are multiple reasons for this type of error. This is the official documenation.
Downtime of either the service you're deploying to in the region you're deploying to.
Downtime of Azure DevOps itself.
The resource type you're trying to deploy isn't yet available in that region.